My favorite quote from Brian Shul’s book was “We did Nebraska in 5 minutes. I think that’s the best way to do Nebraska.”

@zach11241

2 ай бұрын

Agreed.

@Justanotherconsumer

2 ай бұрын

Flatland flyover in a flash!

@kmoecub

2 ай бұрын

If you're the friendly type, it takes years to "do Nebraska."

@jimlthor

2 ай бұрын

​@@kmoecubHow long did it take Debbie to do Dallas?

@Ducaso

2 ай бұрын

Now that is ideal!

I didn't hear about Brian Shul dying. Rest in Peace, Major Shul. Your service and your L.A. speed check story will never be forgotten.

@markp.9707

2 ай бұрын

Me either!! RIP Brian…

@henrycarlson7514

2 ай бұрын

La speed check Classic

@Lucinat0r

2 ай бұрын

As a aviation historian, met him several times, was always willing to talk about the blackbird and answer any questions I had.

@OriginalThisAndThat

2 ай бұрын

Speed check ego crusher

@Emperorvalse

2 ай бұрын

I too was shocked to hear of his passing. I feel I just heard his episode on the fighter pilot podcast just last year.😢

I was 18 stationed at Beale AFB as a Avionics Instrument Tech back in 1982. I fixed all the instruments and did the "spike schedule" on the SR-71. The spikes could move 26 inches and the fwd and aft doors would open and close at different speeds and turns. We checked the system up to 85,000 ft and topped out at 3.2 mach on the spike cart(test equipment). Each SR-71 sortie had a formal debrief with the tech reps and the mechanics. For my shop we were interested in aerodynamic disturbances or engine stalls which usually occurred when the inlet spike and or doors were out of calibration for the speed, altitude, or AOA. We had recorded MRS tapes. This was like a EKG line across a paper. The altitude topped at 85,000 feet and the speed stopped recording at 3.2 mach. I saw many tapes of 3.2 mach. The Lockheed engineers never disclosed what the absolute top speed was they did say it was limited by the spike and the fwd and aft doors. I am 60 now and I am blessed to say I wrenched on the SR-71 for the first years of my AF career. This was a awesome video, thanks for bringing back memories. God Bless 🙏

@benvaun1330

Ай бұрын

What the doors adjusted how opened and closed they were during different maneuvers? I was not aware of that I just thought they opened when they were using the engine as a ramjet for thrust as opposed to when they were using the turbines for thrust. I didn't know that the doors actually fluctuated depending on what they were doing

@cassiespencer6134

Ай бұрын

In the 70's the declassified top speed was over Mach 3.2. Flip those numbers and you get Mach 2.3. To which I have a question for you: What two U.S. acft, both fighters in operation today, can attain a nearly identical Mach 3.2 top speed, and perhaps greater?

@Glub_blub

Ай бұрын

​@@cassiespencer6134bros onto nothing by flipping these numbers 😂

@hoghogwild

Ай бұрын

@@benvaun1330 Not so much different maneuvers but for different speeds/Mach numbers. Wikipedia has some great resources on J58 operation including all the scheduling you are talking about.

@Erikr-ex9dj

Ай бұрын

Thank you for keeping us safe !

One of my grandfathers was a SR-71 crew chief. He told me, back in the 90s when it was being "decommissioned", that the top speed would never be disclosed because the Airforce didn't know for sure what it was and would probably never know. So the following might be the truth or just a cool story. You mentioned the manual saying the speed was more limited by the structural integrity of the airframe and air inlet more than the engines, this is true but an SR-71 that had been flying for awhile was faster than one brand new. He said that each plane had become an unique individual with slight differences in length, width and shape, and that each time they pushed that mach 3.2+ they changed a little more. The skin, frame and air inlets were being slightly alterened, reforged, by air pressure and friction heating making them "organically" reshaped to be just slightly more aerodynamic and more efficient each time, when they didn't break themselves or pieces fuse together that shouldn't. He never said how they measured these differences but that they were small, not noticeable to the eye between individual flights, but made things difficult to repair any worn or damaged surface segments with stock parts. He said that this was first noticed back in the late 60s and Lockheed was very interested in how each plane changed, he believed that the planes retired in the 90s were probably different in shape and significantly faster than when he worked on the same ones in the 60s. I have no way of verifying anything he said he was talking around NDAs and national secrets and would not give specifics for a variety of reasons, so might be true might just be a cool story.

@toby1248

Ай бұрын

This doesn't line up with the reality of what limits the top speed of that plane. It's not thrust or drag limited, it's safety limited. The engines had plenty of thrust to accelerate it well past its top speed, but doing so would cause them to melt. There's nothing about the shape of the aircraft or the engine intakes that could change the temperature of the intake air.

@yamahakid450f

Ай бұрын

@toby1248 Something like water methanol injection could most definitely cool the air in the intake....since heat is the biggest killer of a diesel, i use a 2 nozzle spray in my diesels charge pipe before the air enters the cylinders...it atomizes before entering the cylinders and only provides a cold air, it doesn't actually burn or cause cylinder wash. So I'm sure they could use something to cool the air enough to allow more power out of it, atleast to a certain point...what that would be or how much you'd need to continue cooling the air, I have zero clue...getting enough of it on board to keep it fed may be the issue with that idea, I'm sure it sucks the fuel down, so therfore water/meth mix.

@marktester5799

Ай бұрын

@@toby1248 Would an improvement in the aerodynamics of the inlet result in a reduction in friction from the air and therefore a little less heat?

@Betterifitsfree

Ай бұрын

Aligns with what I have heard.

@aurorauplinks

15 күн бұрын

@@yamahakid450f water/meth mix... I'm sure there's a few truckers that might agree with that mix... no but seriously that is really cool to hear about and understand a bit of. thank you for sharing.

Two stories about the SR-71: 1 - I met a guy that told me he worked on the engines for the SR-71. What he said was that the turbine blades were encased in a ring of graphite. The blades went so fast that they stretched and ate into the graphite to maintain the seal. This whole system had to be replaced after every flight. 2 - I also met a guy that was stationed at the Plattsburgh AFB and told me he saw an SR-71 cross his radar screen once. There were just two blips before it exited his screen.

@JohnMaxGriffin

2 ай бұрын

That’s actually pretty common for jet engines to have graphite wear rings and gas seals. Not sure how common it was when the J58 was designed though.

@nattybumpo7156

2 ай бұрын

Thats my neighborhood. Saw the Thunderbirds fly there before it closed.

@recoilrob324

2 ай бұрын

I worked in the J-58 overhaul section 577 at P&W WPB FL for the last year of production and have seen the insides of them many times....and can say that it's an amazing engine but nothing needs to be replaced after every flight. There ARE thermal limits on various components that if exceeded will shorten their TBO and the only case of something needing replacing after a flight would likely involve a massive pilot error and the guys who flew them were absolute professionals who didn't do things like to their aircraft. For sure it's possible that somewhere sometime somebody pushed one WAY beyond the normal operating conditions which then needed repair before another flight...but that would be an exception rather than the rule I think. Every engine was test run extensively including a 33 minute 'Qualification Run' at full Military Power where fuel flow, thrust and all temperatures and pressures were carefully monitored before the engine was released out to the field. Of course this was at Sea Level and full Afterburner but not involving the compressor bypass tubes that ran straight back to the burner can which were used over Mach 2. The real engineering genius in the Blackbirds was in the inlet ducting where the Mach 3+ airflow slowed down under control to subsonic velocity to be fed to the engine. Information about the ducting and how it worked is well worth a read if you are interested in such things...the guys who designed it were from another world. Anyway....should something internal need replacing the engine would have been sent back to the plant and another installed from their spares in the field. Even working in the overhaul section things were compartmentalized and few people had free run through every system and component. I worked on the afterburners, fuel system and compressor sections and wasn't privvy to the turbine so can't comment on how or if they were sealed. For sure the compressor blades are sealed on the ends as most modern high performance turbines are today. Nothing sounded like a J-58...it's a 'Big Block' motor that doesn't spin real fast like the F-100's and F-119's do so the sound is a deep guttural ROAR that shakes you inside...just glorious and I'm very sad that nobody will ever hear one again.

@TheMeepster72

2 ай бұрын

@@JohnMaxGriffin Definitely unique for a Pratt and Whitney engine. It's almost always brush seals.

@dcab6447

2 ай бұрын

My brother in-law was an Air Traffic Controller for the Navy in Jacksonville FL. He said an SR-71 passed through his airspace headed for Diego Garcia in the Indian Ocean. It came back through his airspace 4 hours later.

You really didn't think they were really gonna admit to its actual capabilities of a top secret airplane now did you? 😅

@baomao7243

2 ай бұрын

Yeah, i always laugh at these types of assertions - people are officially sworn to secrecy…yet somehow they openly make statements punishable as treason. So they’re stating the actual, exact capabilities… YEAH, SURE.

@jeffbenton6183

2 ай бұрын

A somewhat secret plane that hasn't been in service for over 30 years now. It wouldn't surprise me at all if the real top speed were to be declassified in the next 2 decades. Then again, the USAF is quite sensitive of such things. The kept the entire existence of the unimpressive Project Mogul spy balloon (which crashed at Roswell) classified for something like 40 years *by accident.*

@jordostan

2 ай бұрын

No, I don't think anyone thinks that. And certainly not Alex.

@dogfoot1874

2 ай бұрын

It could probably go faster but it disintegrating in flight its a matter of numbers

@michaelsauer9129

2 ай бұрын

And that official record? At least for a longer transcontinental distance, hat was set when the 'supposedly last' plane was on its retirement flight from the west coast to Dulles airport to be given to the Smithsonian.

I was an engine mechanic on the B-58 Hustler. It was capable of speeds so fast that the friction with the air would burn the decals off of the skin of the aircraft.

@ExaltedDuck

Ай бұрын

Decals? Legend has it the SR-71 was too hot for sealants and would leak fuel like a sieve on a cold start. It was only after warming up that thermal expansion of the skins would close them up and so they would take most of their fueling in-flight

@cahg3871

10 күн бұрын

@@ExaltedDuckthat is true,the plane had to be assembled so it was loose fitting-the friction of high speed flight would close the gaps between each piece.If it wasn’t,the plane would literally break apart from the expansion while in great speed.That’s the same reason bridges have expansion joints,to allow expansion and contraction due heat and cold temps.

During the Falkland War in 1982 our was at RAF Lakenheath. The SR-71 stationed there were flying recon for the Brits over the Falklands. I was working the Flight Line and saw a SR-71 takeoff and it literally made the hair on the back of my neck stand straight up ! I will never forget the breath taking power, sight and sound of the SR-71 !

@randolphpmiller

Ай бұрын

They were stationed at RAF Mildenhall not Lakenheath. The F111s were stationed at Lakenheath. I spent a year supporting one of the SR71 payload systems from 1987 to 1988. We lived in West Row which was right next to the Mildenhall flightline.

@awavey

Ай бұрын

they were based at Mildenhall, though only on temporary assignment in '82, they did operate out of Lakenheath during the 80s, when the runway at Mildenhall wasnt available for use, but as the RAF found out with flights to the Falklands, youd need a whole fleet of KC135s flying over the south atlantic and fuelling each other just to stay there, for any plane, let alone the SR71 to get there and back, its a 16,000 mile round trip.

Back in 1988 I had a girlfriend who was a USAF air traffic controller. She monitored the sea of Japan. She told me that SR-71's often flew across her airspace, but did not show-up on radar. SR-71 pilot's transmitted their position using Morris code. She said it was pretty easy to calculate their speed between position fixes. They crossed her airspace at 3,000 mph. I don't think anyone believes the SR-71 could only fly 500 mph faster then a stripped-down F-15 in full after-burner.

@charlesdudek7713

2 ай бұрын

Is Morris code anything like Morse code? 😊

@redcapote4760

2 ай бұрын

Exactly what I've stated. If the F-15 can do Mach 2.5 then there's no question this Skunkworks creation was made to fly MUCH faster.

@svartmetall

2 ай бұрын

That would be about Mach 3.9...?

@elwap0

2 ай бұрын

Bob Gilliland told my son ...it was much faster than advertised.

@memyname1771

2 ай бұрын

Back in 1988, your girlfriend was a security risk!

I had a guided tour of the Seattle Museum of Flight. The guide used to be a 71 pilot. Told some amazing stories. When he told us the "official" too speed, my father asked what the unofficial top speed was. He responded with, "Fast is all I can say."

@jacobstienecker

2 ай бұрын

USAF museum is better than any other

@MiscMitz

2 ай бұрын

@@jacobstienecker that sounds really cool.

@American-Motors-Corporation

Ай бұрын

​@@jacobstieneckerhow many weather balloons do they have on display?

@Nerple

Ай бұрын

@@American-Motors-Corporationjust the wreckage of one with characters written in Mandarin I’d suspect!

@Ghost_Bear_Trader

Ай бұрын

@@Nerple lol

He mentioned the word "habu" in his introduction. That terms is associated in my mind with Okinawa, Japan and its very poisonous indigenous snake, the habu. Around 1984, I was working for The University of Central Florida as the lead designer for the USMC's TACWAR company-level manual wargame. We went on many multi-week trips to all of the Marine Corps' "garden spots" and in 1984 we were in Camp Schwab, but we frequented many of the Air Force bases for "provisions." I was in the parking lot of the PX at Kadena AFB and heard this very loud noise. Looking up, I witnessed an SR-71 taking off like a missile. It was very memorable. A few years later, they were gone. Glad I caught this even at least once in my life.

While serving in the USAF from 1976 thru mid-1980, stationed at Ellsworth AFB in SD as a jet engine troop working flightline, I had the opportunity to witness 1 of these planes land as a transit bird at our base. The SP personnel very quickly escorted the taxiing aircraft to the 90 row of docks(last row at north end of the runway)into a waiting dock that already had doors open(they would accommodate a B-52 easily)and shut the doors after the aircraft shut down. (We also had another one set down about a year or so later, same deal). I knew a couple troops in the SP squadron who were working security at night up there, they told me you have 3 minutes to go inside and look at it after scrutinizing my line badge. I did so and was amazed at the size of it, couldn't help but notice all the fuel on the floor because the SR-71 was designed that way to allow for expansion when at speed and would leak like a sieve when cool. We took our look at it and the SP people said, "You didn't see this tonight, right?" "Nope, didn't see anything....." Personnel were brought in from Beale AFB to make necessary repairs and bring start carts for it. It departed 2 days or so later, and the resultant sound/shock wave from the burners lighting off was actually much louder than a KC-135A tanker using water injection! Very cool to see this display of sheer power, that jet was at altitude and leaving a contrail inside of 5 minutes after a steep angle of attack climbout, and could still be heard loud and clear after it disappeared from sight. So cool to see one in person, and to see it fly!

Best line: '... while outrunning missiles.'

@chrissinclair4442

2 ай бұрын

Pucker-up, buttercup.

@Truex007

2 ай бұрын

That is a gross oversimplification. Most missiles will hit Mach 10. Outrunning a missile's targetting capabilities is probably more accurate.

@atigerclaw

2 ай бұрын

The missiles ARE in fact faster... But they still have to climb to 80,000 feet and close the gap before they run out of fuel. Even when the opposition is throwing a telephone pole at you, that's a very difficult task.

@dl6519

2 ай бұрын

Yes. A missile launches towards a calculated intercept point, and if the aircraft accelerates, that pushes the intercept point further away because the missile has to fly to the NEW (and constantly moving-further-away, if the acceleration continues) intercept point. So the aircraft doesn't have to actually out-speed the missile; it only has to push the intercept point out-of-range of the missile. That being said, at operational speeds the SR-71 accelerated like a scalded rabbit. It couldn't pull more than about 3 G's in a turn, but its signature move was ACCELERATION. With the engines in ramjet mode, there were no turbines to spool up. More fuel was simply sprayed into the combustion chamber and the acceleration was instantaneous. It would slam the pilots back in their seats like a sports car. The rate at which the SR-71 could accelerate was in that ballpark. So it makes sense that the SR-71 would normally operate significantly BELOW its maximum speed, so that it could ACCELERATE if a missile was launched.

@atigerclaw

2 ай бұрын

A funny thing about my comment, is that the post time was only a minute after Truex007. I wasn't even responding to him, but it's now going to look like I was thanks to that timing, and how well my comment just happens to work as a rebuttle. I am amused.

If SR-71 is that fast for a 1960s skunk works design, imagine what new toys _we do not know of_ the US has.

@Justanotherconsumer

2 ай бұрын

Well, there’s stuff in space that makes Mach 3 look like walking speed.

@SlayerBG93

2 ай бұрын

You would think but technological developments like satelites and high speed missiles have made spy planes pretty useless and combat aicraft dont get up to those speeds since it requires making many sacrafices in the design. Hence why the SR-71 hasnt been beat. There are some 6th gen combat aircraft designs talking about speeds past mach 4 to add kinetic energy to the missiles so there might be a prototype or two flying around somewhere but no aircraft in service.

@markymarknj

2 ай бұрын

All I know is that, when Top Gun: Maverick came out, the Chinese shit a brick. Why? Because of the SR-72, aka the Darkstar, in the film, The Chinese reasoned that, if the US and Skunk Works were going public with that, then who knows what they're working on behind closed doors?

@dananorth895

2 ай бұрын

If there going public with it , it's at least 20 yrs old.

@pirobot668beta

2 ай бұрын

Aurora, for one.

I worked at Pratt & Whitney Aircraft located in West Palm Beach FL in 1977. The Air Force held a customer appreciation day for the employee working on the engine. In a conference room we met two SR-71 pilots who told about some of their missions and plane details.. They showed us a film taken from the plane of two Sam missiles being launched and chasing after plane. The pilot hit the power and out ran the Sam's. You could see the Sam's falling behind the plane then their proximity fuses blowing the missiles up! I was also totally amazed at the camera systems on the plane that could track a missile from the ground up and chasing the plane. I was also told by the Pilot that the Russians had figured out away on how they could shoot a SR-71 down.

The government won't devulge the performance of a lot of their stuff. My dad worked for the Navy in a high level position developing and advancing sonar. He had a top secret clearance so was privy to a lot of top level info. He came home from work one day and had something he just had to share. Under a major threat to not devulge the information to anyone he told me what the top speed submerged nuclear attack submarine was. Holy Moly. Far above what was thought. This was back in the 60's. To this day I have not shared that info with anyone.

@petero.7487

Ай бұрын

I do remember hearing somewhere that a submerged submarine could hold pace with an aircraft carrier which is pretty impressive.

A guy I know was manning one of the scopes in the CIC aboard a carrier back in the early nineties when he mistakenly triggered an alert for an incoming ballistic missile track. He was pretty new to the fleet and saw something dropping towards the fleet descending rapidly through 100k feet and "Way the hell faster than mach 3". He called for an alarm and it took a minute for the XO to get over there and ID it as a scheduled Blackbird flight

@dananorth895

2 ай бұрын

I wonder how many times the sr 71 triggered ballistic missle warnings? Lol

@skoookum

2 ай бұрын

Tard Nation

@EdD-ym6le

2 ай бұрын

I would have liked to see the radar operators reaction when Shul came out of Libya ... " What your tracking there sailor is Freedom "

@jayytee8062

2 ай бұрын

My bullshitometer is peaking at your claim.

@evanwitt1871

2 ай бұрын

​@@dananorth895 it actually had a radar recorder, because it would trigger radars and could record data so they could understand the rival country's radars better

My dad worked on F-111s in the late 1960s somewhere near Fort Worth Texas. One day, while he and many others were working on those planes in the hangar, an SR-71 developed some kind of problem and had to land at that facility. The managers came into the hangar and told everyone to stop what they were doing and to get out of the hanger RIGHT NOW!! This was sometime between 1968 and 1970 when the SR-71 had just started flying and was still super secret. My dad and his fellow co-workers had no idea what was going on, so they went to the break room/lunch room... which had some great big windows gave them a great view of the runways and allowed them to see the SR-71 roll up into the hangar. Can you imagine the thoughts that went through their heads? They knew what jet fighters looked like and they knew what the B-52 looked like. Then, they see this plane that looks like nothing else on the planet!! A plane that looks like something out of a science fiction movie. Anywho... that is my story. I hope you like it.

@JarrodFrates

2 ай бұрын

President Johnson publicly announced the SR-71 in July 1964 and gave basic performance details of altitudes over 80,000 feet and speeds over 2000 MPH. The USAF publicly unveiled the A-11/YF-12A in October 1964, even going so far as to fly two of the planes over the runway at altitudes as low as 75 feet AGL, though maintaining subsonic speeds during the demos. The SR-71 had some secrecy around it still, but it was not the black project level of secrecy that you describe.

@SAVikingSA

2 ай бұрын

@@JarrodFratesI saw a B-2 land at our local ANG for its state name designation ceremony, probably around 1996ish. If the SR-71 was similar, it wasn't secret, but it was secure. State police on the adjoining roads, strict security into and out of the airport, and it was parked in a C-5 hanger immediately.

@hoghogwild

Ай бұрын

@@JarrodFrates The "black project level of secrecy" was in force for the CIA A-12.

@NM-yu3fc

Ай бұрын

😂 can you imagine working on a f-111 and a sr-71 rolls into the hanger one day. They're like yeah we just flew around the world, but we needed to stop here. I need to call my boss where's the closest secured line?

@Schoolforthesoul

Ай бұрын

I like it 😊

When I worked as an air traffic controller we had one call us from above controlled airspace over Pensacola Florida declaring an emergency. He wanted us to be aware that he may need a lower altitude since he had an engine out. When asked where he wanted to land, he said he was going back to his base in California.

@wally7856

Ай бұрын

There is an old tale where an SR71 pilot radioed the tower asking for permission to enter flight level 70. The tower laughed and asked "How the hell do you plan on getting your aircraft to flight level 70?". The pilot answered "By descending."

@Ghost_Bear_Trader

Ай бұрын

@@wally7856 My friend worked for Houston Center said they had a similar call requesting flight level 600. They said "Sure buddy, if you think you can make it up there, go for it!" a quick response "Thank you center, descending to 600"

@steveselfridge8468

Ай бұрын

in the early 70's one lost fuel a couple hundred miles west of san francisco and landed in kansas city.

@MelvinCruz

Ай бұрын

Hahahahaha that's a gigantic leap for a plane in an emergency...imagine if every plane on the planet could do that,it would be the perfect world with no accidents

@sergeantrandomusmc

19 күн бұрын

My dad was in the Air Force temporarily assigned in the UK and overheard a U2 declare emergency (flame out) as it was passing over England on its way out of Europe headed towards the US. The controller asked if the U2 wanted them to scramble the Azores? Pilot’s response: naaa, I’ll just glide it back to Edwards… so, the plan, with the engine not running and powering the plane is to glide all the way across the Atlantic ocean and then all the way across the continental United States… The machines (and many of the men operating them) of that era seem so much better than what we appear to have today.

I remember seeing an interview of an SR-71 pilot describing how they outran a surface-to-air missile. He was quoted saying, "We got up to *scary* Mach speeds..." ... Scary... for an SR-71 pilot. I don't think he was talking a measly Mach 3.2 - that wouldn't have been "scary" for an SR-71 pilot.

@avroarchitect1793

2 ай бұрын

scary meaning they were not sure the airframe could take it

@markymarknj

2 ай бұрын

Not only that, 3.2 isn't fast enough to outrun a SAM! IIRC, they'll easily do Mach 4.

@DjDolHaus86

2 ай бұрын

@@markymarknj Common soviet SAMS of the time capable of high altitude interceptions could reach mach 3.5-4 but they can't sustain that sort of speed particularly when trying to hit something at high altitude. They've only got so much fuel onboard and once it's burned then you're just relying on momentum to carry you to your target, if that target is sustaining high altitude flight at mach 3+ then unless you get very lucky with your timing there's a very low chance of hitting anything

@tonyhowell9203

2 ай бұрын

Was that with Maury Rosenburg ?

@jbc242424

2 ай бұрын

@@tonyhowell9203 I think it could be! It was so long ago I can't remember exactly, but having a look at Maury Rosenburg, he definitely looks familiar.

I'm an Aerospace engineer. When I was in college one of my professors told me that he worked on the A-12/YF-12A/SR-71 programs. He stated that the top speed of the aircraft was limited by the heat generated on the airframe. I asked him for an approximate top Mach number; he said above 3.4.

@Justanotherconsumer

2 ай бұрын

It’s the kind of thing of whether the plane fly faster more than once. Mach 3+ in the MiG-25 was possible if the engines were expendable.

@samsonsoturian6013

2 ай бұрын

He probably pulled that out his butt. You really think it was tested to the point of failure?

@marcalvarez4890

2 ай бұрын

Design limit within safety regs? Sure...But ABLE to achieve....Prob substantially more. I tend to believe the "Just under 3k" stories.....For seconds at a time.

@sneedjak

2 ай бұрын

this is objectively correct, it's limited by the autoignition point of the specific fuel they used under the plane's skin.

@heru_ur6017

2 ай бұрын

The speed of the A12 was limited by the air temperature at the compressor inlet of the engines.

40+ years ago i was stationed in okinawa, at the px i was wearing a t-shirt with the blackbird on it stating mach3+, while there a major in a flight suit (not uncommen on an airbase) when he mention my shirt telling me to add a couple of plusses, it was then i saw his patch that said Habu Driver, habu is what the locals called it

There is an SR-71 Blackbird on display at the air museum in Portage, Michigan. I used to go there just to see the SR-71. It was a century ahead of it's time and arguably the most beautiful jet ever built !

@Ghost_Bear_Trader

Ай бұрын

Have seen and touched the same aircraft. Smaller than I thought.

I had the chance to attend a speech made by an SR71 backseater. He said they never reached the aircraft's limits and that every time the aircraft went up, it could break every record it previously set.

@LukeLewis

2 ай бұрын

I believe that to a point. There's a quote from Kelly Johnson's engineers out there stating that each time the titanium airframe went up it retempered and further hardened the metal. Not sure what that would do for speed, but I could imagine it would allow "seat feel" to push a little futher as shakes, wobbles, and squeeks would change.

@playlists8831

2 ай бұрын

This is true from the accounts I've heard as well.

@paulmartos7730

2 ай бұрын

I've heard this for years. In an article about the SR-71 in an aviation magazine, a pilot said that it was never flown at full power but could reach in excess of 2500 MPH.

@hoghogwild

2 ай бұрын

@@paulmartos7730 There's a few interviews of A-12 drivers saying they flew wide open over their targets.

@WilliamMurphy-uv9pm

Ай бұрын

@@hoghogwild if you were over a Russian SAM site photographing it, that might have been a great idea.

A buddy of mine worked on the dew line radar when an SR-71 was coming through. He was not allowed to track it and check the speed. He saw the blips on the radar and with an experienced estimate he knew it was going faster than advertised.

I flew F-16s in the 1980s. Everybody knew the "official" top speed was a myth. The Blackbird could fly as fast as it needed to.

@MrGriff305

Ай бұрын

The F-22 top speed must be absurd, and we all know that F-35 isn't mach 1.6.

@planetim

Ай бұрын

@@MrGriff305 I was an F-16A FCF pilot. The jet had to go at least mach 1.4 at 40,000 ft. Fastest I ever saw was 1.84. I suspect the F-22 is 2.5ish.

@Ghost_Bear_Trader

Ай бұрын

@@MrGriff305 F-35 speed is 1.6 as they tow it back into the hangar for more repair

@superdude1759

Ай бұрын

​@@Ghost_Bear_Trader Yeah, while it's being dragged on it's belly and the pilot is still in his ejection seat 40 feet over yelling at the tow truck 🚒, "hey don't forget me! Take the whole chair, I'll just stay strapped in, I got some power bars, yee-haw! I wanna' do that again!"

@Ghost_Bear_Trader

Ай бұрын

@@superdude1759 lol

I met an uncle of a friend who was a USAF inertial navigation technician on the SR71. He was still held to TS requirements even being out of USAF for 15 years. He said their top speed was above Mach 4.5. He would only confirm it was faster. He saw the exact speed when processing post flight navigation system.

@superdude1759

Ай бұрын

I think this is true! See my comment about an in flight refueler on main page.

@EdWeibe

23 күн бұрын

the TS requirements never go away.

@ronmann2681

23 күн бұрын

True, but he never gave a top speed. Just a nod when we gave a speed. Higher. Much higher.

50s tech with records that still hold, as far as we know...unbelievable tech from Kelly Johnson and all the dedicated engineers who produced this masterpiece.

@ow7224

Ай бұрын

It makes me wonder what’s being made today😅

@MartianHiker

Ай бұрын

​@@ow7224or what's out there already that we are unaware of.

@Leonard-hk1nf

Ай бұрын

Yep technically is so much better now ! No way we don’t have much faster equipment !

@dzcav3

Ай бұрын

"...unbelievable tech from Kelly Johnson and all the dedicated engineers who produced this masterpiece"...WITH SLIDE RULES! No computers or CAD.

@jkellynewman9203

Ай бұрын

​@@ow7224 TR3b

I love the blackbird, to think that this was designed in the 1950s with sliderules, truly shows how amazing those engineers and builders were. I DONT believe when the blackbird was retired in 1990, that it wasn't replaced by something else even faster ( Aurora etc).

@paladinhill

Ай бұрын

Sshhh.....

was at Dayton airshow about 15yrs ago and was talking with 2 pilots. they just smiled and said the sr71 could come out of retirement and blow away any speed record.

@paladinhill

Ай бұрын

That was a true statement.

@superdude1759

Ай бұрын

That made me laugh... Because of the way you said it and because I believe it's true! Thank you!

@jackmeoffer9334

Ай бұрын

@@superdude1759 I go every year and the sr71 is my favorite plane. I try to talk with the pilots if they are there everytime

I can confirm this. My grandfather designed the nose and wings of the SR71 while working for Skunkworks. He told us that it went 3.5+

@EdWeibe

Ай бұрын

plus. The max cant be disclosed. I mean the thing outran Russian SAMS

@user-ox7ye6zq6f

Ай бұрын

Now Skunk works is in what used to be called Building 85, I believe. That's where they built the TriStar and some components of the C-5 B small among other projects like the P3, AWAKS

@ewamanda

Ай бұрын

Everyone can stop researching, this is solid.

@uncrunch398

23 күн бұрын

@@EdWeibe I don't know at what point but AA missiles achieved MACH 7+. It's possible that even at that speed they might miss, unless stealth enough the plane wouldn't detect them in time, if flying high enough and limited range of the missiles.

@steven8075

20 күн бұрын

@@uncrunch398 yes a SAM would eventually catch up. but keep in mind they were designed to shoot down jets going MAYBE Mach 1.5 at the time. so a SAM trying to catch a plane going a "possible:" MACH 3.3 or faster means even if the SAM is catching up it would probably run out of fuel before it got close to the SR-71.

I met and talked to the RO on the record speed holder flight, at the Smithsonian back in 2016. I asked him how many times an emergency had to be declared with the Blackbird. He smiled, paused a minute, then proceeded to tell me that, technically about 75% of all Blackbird flights could be considered an aircraft in distress/emergency condition. This was due to the fact that the temperatures associated with going Mach 3, always caused a failure in one system or another, of varying urgency. Due to the nature of the Blackbird’s mission sets, they didn’t actually declare emergencies because it was just overall assumed that the plane was going to have issues of some sort, during and after a mission.

@PumaTwoU

Ай бұрын

This is why they had to sit on the ground and let the plane cool off before the pilot and tech officer could get out.

In my humble opinion,the SR-71 Blackbird is one of the greatest airframes in aviation history.When you take into consideration the time frame it was designed and constructed in and the manoeuvres the CIA pulled to gather the materials needed for the construction,it truly was a magnificent achievement.

@bobthompson4319

Ай бұрын

especially when remembering its really late 50s technology.

@babyj4154

Ай бұрын

Could you link me to what the CIA did for the materials?

@cahg3871

Ай бұрын

@@babyj4154the CIA formed shell companies and bought the titanium mineral from of all places,the country the SR71 was built to spy upon,the USSR.Titanium was only found in the Ukraine,which in those days was firmly entrenched behind the iron curtain of the USSR.There are numerous accounts on KZread that recount that fact.

@cahg3871

10 күн бұрын

@@babyj4154-KZread has several channels explaining what the CIA did to acquire the needed metals.I would suggest typing in the SR71 plus CIA assistance.That should do it.👌👍

@apveening

Күн бұрын

@@babyj4154 The SR71 is mainly made out of titanium. The main source of that metal at that time was the USSR. I leave the remainder as an exercise for the student.

What a great video. Thanks. I did a TDY where the F-4s and SR-71s played some games and also worked in a squadron with F-15s, 16's, 3's, and A10s in an operational test and evaluation squadron from 1980-Dec 82. What a great group that was and I miss my old AF days every minute of the day. The smell of JP4 was great.

Hi, I'm a former aircraft mechanic for the former (not this new crap, wheels falling off, engine on fire, off the runway UAL) United Airlines and I worked alongside a former in flight refueler for the SR-71. He told a story of how during a refueling operation where he's in visual contact with the pilot, he asked the pilot how fast the "Blackbird" could actually go. He said the pilot responded over the radio with "I can't tell you it's classified.". Then in a remarkable display of "pulling back the curtain" the pilot held up his hand and showed the refueler all five fingers as if to state an actual speed of mach 5! Now here's something people rarely state when mentioning Mach: Mach at altitude, that is, above 30,000ft is 652 mph and at sea level it's 752 mph. This is because mach is a speed of sound measurement which varies with density. In less dense atmosphere mach is slower which is the case at higher altitude. In outer space Mach is zero. These things need mentioning when throwing around Mach numbers. So, with that in mind, Skunk Works may have been playing a little game by publishing low altitude mach Numbers to throw looky-loos off of their trail! Mach 3.2 at sea level is 2,407 mph approx. At altitude it's only 2,087 mph approx. They know that the Russians would have been thinking 3.2 is an "at altitude" speed. If they really mean that the speed is 2,407 mph and the craft actually flies that speed at altitude then it's relevant Mach number is actually 3.69. Now if the 71 flew at mach 5 at attitude like my coworker stated then it would actually achieve a speed of 3,260mph which is very close to what another commenter said here about the plane regularly flying at 3,000mph. That speed's mach number drops to 4.3 at sea level. Back in the early '90's I spoke with an SR-71 pilot at fleet week in San Francisco and he told me the limiting factor of speed wasn't the engines because they are ramjet engines, but it was the limit of the aircraft material capabilities. He said the leading edges would heat up to 900 deg F. Funny though, he didn't say they couldn't get hotter and maintain their temper! He also didn't say what speed or altitude the craft was flying at when they got that hot. It seems to me that they speak to people stating specs in an ambiguous way knowing that we will assume they mean one thing when they didn't actually state it. When I hear stories like this and I look at all of it from the 30,000 foot view it all comes within the realm of possibility! When all is said and done, I really don't know, they're just stories until I can actually verify it all! Peace out!

@chris_jorge

Ай бұрын

Such a great story ✋👨‍🚀 thank you for sharing!!

@superdude1759

Ай бұрын

@@chris_jorge Your welcome! Happy to!

@FUTURECONFLICTCHANNEL

Ай бұрын

I heard from a Vietnam-era AF radar guy that the 71 did 3500 on his scope. And they had to get read in to monitor before the 71 flew through SE Asia.

@superdude1759

Ай бұрын

@@FUTURECONFLICTCHANNEL Wow! That would be Mach 5.37! Other commenters in this post were saying that as well and a couple were saying it could fly as fast as 6 to 7,000mph! Have you heard of the X35 (I think)? It was the lifting body aircraft developed back in 2005 to 2010 or thereabouts that was achieving 12 to 13,000mph with a new engine called a SCRAM jet. That stands for Supersonic Combustion Ramjet. Interestingly enough that aircraft could take the heat. Also even in the 1960's the Atlas rockets could take the heat generated at 17,000mph which is their entry into orbit speed. I say this because thermal limits are always mentioned about the 71. I'm not so sure that's an actual issue!

@fshalor738

Ай бұрын

I would not question for a second whether the SR-71 is / was Mach 5 capable. The issue really is the fact that the poor bird has to take off. If the airframe was dropped at 30k feet and 300-450 mph, the restrictors which allow its power plant to go dual mode would be lifted and it could likely maintain stability well past five fingers. It's all about compressor stall. For the time, the intake design is an absolute amazing breakthrough. That was how many decades ago? Dual-mode means compromises. Maybe there's a "third mode" setting no one every admitted to already built in. (Likely would have been in the mid 80s.) I'm guessing the last 5 were tested and capable of blowing past at least 3.8 without mods, with a freshly designed 25 years newer inlet system? nothing wrong with the airframe going for more sky.

When I was in high school. I remember getting up to get ready for school, and hearing on the news that an SR-71 had just taken off from the west coast headed for the east coast. One hour and six minutes later it landed in Washington DC. California to DC in an hour and six minutes. That is absolutely haulin balls.

@Hatchetbay

2 ай бұрын

Was the footage of the SR-71 at the end of this video cruising low past Dulles Airport (@10:14) taken on that day? That was a surprise to me when it popped up ... and very COOL!!

@johnfalcon84

2 ай бұрын

I lived in California at the time and heard the sonic boom.

@righty-o3585

2 ай бұрын

@@johnfalcon84 it was in the early 90s sometime. It took off about 20 miles from my house. 🤘

@peacemaker9807

2 ай бұрын

Could be. Don't really care. It's definitely within speeds the thing is said to fly.

@righty-o3585

2 ай бұрын

@@SelfEvident It absolutely did happen

I met Brian Shul in Wichita KS at a conference and I had the privilege of being the first in line to buy his book. I asked him if they'd ever declassified the top speed to which he replied: "Oh, it was never classified, we just don't really know the top speed; it just kept getting hotter so we'd have to back off."

@philhand5830

Ай бұрын

Now, this post is more believable than most of the others... SR 71 engines were ram jets. Ram jets...the faster it goes, the faster it wants to go... It makes all the sense in the world that its top speed was never really known!!! BTW,the original designator for the blackbird was RS 71... Lyndon Johnson turned the letters around when he first announced the aircraft!!! Top speed was never determined...

@BooBaddyBig

Ай бұрын

@@philhand5830 They weren't actually ramjets since all the inlet air goes through the first few stages of compression before some of it bypassing around the engine core and going off to the afterburners. Ramjets don't have any compressors. It's really a type of turbofan.

@danielboatright8887

Ай бұрын

Yeah Ive always figured the top speed was 'structural failute due to hull melting'.

@natlkjh8677

Ай бұрын

@@BooBaddyBig Pratt & Whitney J58. they where ramjets but also turbo fans in a hybrid setup. at low speeds the spike is extended and and trust comes from the turbofan. at high speed the engine spike ( the cone at the front of the engine) is retracted the suck in doors to the turbo fan are closed as well as the tertia doors being closed. all trust came from the ram jet part of the engine. And the turbo fan only provided a cool air barrior to keep the burning fuel from melting the engine casing, and in some models at vary high speeds Water/methanol was injected to provide cooling.

@BooBaddyBig

Ай бұрын

@@natlkjh8677 OK, I've got it now. No, not really. You need to understand that there's TWO sets of bypass. The first set is used at all speeds, and is cooling air from right after the inlet, and goes completely past the engine and all the little pipes and straight into the nozzle, bypassing the afterburner and isn't directly reheated and so isn't really a ramjet (except it may mix and burn with the other flows within the nozzle a bit.) The second comes off after the compressor in six big tubes and is variable and goes into the afterburner section. That's just an afterburning turbofan.

My neighbor (recently deceased) designed the Pitot tube at the front of the SR-71. He had a great story about discussions during testing and how he determined they were running ridiculous speeds based on thermal induced discoloration of the Pitot tubes metal.

@anthonydewitt7674

Ай бұрын

my dad (a master tool and die maker) made the pitot tube for the X15 at JPL .He also welded on the X15 inside a giant tent filled with Argon or Helium. In the early 60's welding titanium was done that way and he wore a suit like a deep sea diver might use with oxygen hose for breathing..

Man I'd worked with in the 80's came out of the Navy. Told me a story, he was on a ship off the coast of Okinawa Japan and was on radar. Saw a signal coming in and addressed his Colonel. He was ordered to erase the signal and forget what he saw. He told me it was SR-71, refused to tell me the speed. Then he claims he was in a bar with a bunch of his Navy friends and he saw some pilots sitting by themselves. He went over and said hi, introduced himself and asked if he could join them. David, was a complete geek and very approachable guy. They started talking about what they did for work and the pilot talked about flying the BlackBird and the other guy said he was on instruments. David told them he saw them on radar and they told him he didn't. David asked about the plane and they said they put their food on the glass to heat it up before they ate. The plane has a problem at speed with the engines lurching yawing the plane suddenly. "Feels like a train wreck. Slams you against one side of the cabin or other." David asked how fast it was. They wouldn't discuss this but did claim, they've never pushed the plane beyond 40%.

@paladinhill

Ай бұрын

On a ship in the Navy, a Colonel is called Captain. The Navy doesn't have any Colonels.

I was washing my clothes in a hotel laundromat in a hotel in Singapore with a very elderly American gentleman last year. We chatted and realised we are both former aeronautical engineers and aircrew. We chatted in the small laundry for an hour until our clothes were done. Turns out he was one of the designers of the SR-71. He confided in me but wouldn’t elaborate that the Blackbird was faster than on paper and also that the U.S has aircraft we don’t know about . Funnily enough, and we laughed about it, he was born and raised in Roswell New Mexico. I never exchanged contact details. Wish I had, though this gentleman was very elderly and I reckon on one last vacation 😢.

@sennaha

Ай бұрын

A few years ago, I was at 39000 feet flying north off the coast of GA/SC. I looked above and to my left to the west. What I thought would be a meteorite falling into the atmosphere, white/greenish trail, that ends up falling, burning out, ended up not descending, and continued to burn, heading east out to the ocean. ATC didn't see anything on the radar. It was traveling quite fast, but hard to determine height. I asked my FO, who was a former F15 pilot, if he had ever seen anything like that. He hadn't. My logical conclusion is our government has some really impressive undisclosed aircraft.

@paladinhill

Ай бұрын

You are correct.@@sennaha

@superdude1759

Ай бұрын

Hey thank you for sharing this! This confirms what I've heard about the SR-71. Wow one of the actual designers! That's Amazing! Also I just heard something on the History channel about how the German (probably Jewish) scientists under the Nazis developed anti gravity drive then we, the US sequestered these scientists after WWII who helped develop our space program. I think a few of those scientists went to Groom Lake, NV!

When it comes to military hardware the US tends to understate its capabilities, unlike certain Slavic or East Asian nations.

@DaneKaiser

2 ай бұрын

Russian su-57 flies mach 6.5 dont ya know. Its so stealth that no one has ever seen one fly over ukraine. Has a height ceiling of 95,000 ft. It even has a gun that goes pew pew pew

@lordphullautosear

2 ай бұрын

RF is not ethnically Slavic. Most moscovians aren't even ethnically Slavic...but we know what you meant. They like to pretend about much more than aircraft specs...

@lordphullautosear

2 ай бұрын

​@@DaneKaiser-- just a few days ago they got a '57 off the ground to drop some big bomb on a Ukrainian target. It was "escorted" by a pair of '35s, and the big bomb it dropped missed and made a hole in an empty field.

@mfree80286

2 ай бұрын

@@DaneKaiser Does it still have engines that go "crunch crunch" though?

@DaneKaiser

2 ай бұрын

@@lordphullautosear are you sure the 2 su-35’s weren't towing the 57? ,😂 that's good info though thank you.I'm pretty surprised that they actually flew a 57 over Ukrainian soil. They are deathly afraid of getting one of those shot down. They only have 7 partly operational 57's flying right? They've built 9 total but 2 are just for testing or prototypes

My bro-in-law (since retired) was a USAF Lt Col… Early in his career, when he was in the missile silos, he would listen to Salt Lake control, and he actually heard one of the SR-71’s “descending to FL 800” messages. *I have a picture of him in a spacesuit at an undisclosed altitude in a U2 spy plane. The windows were mostly iced over, but the sky was BLACK, and you can see the curvature of the earth out the window.*

A KC-135 boom operator friend of mine that refueled them and was stationed in Oki in the 70s told me the Habu would routinely do Mach 6 like the X-15 but only in restricted areas where they couldn't be clocked by radar...He also said the 135 would be shaking at max speed while the Blackbird was near stalling during the entire refueling process.

@Ghost_Bear_Trader

Ай бұрын

An SR pilot personally told me the same thing. They once flew into China to get a sample of nuclear bomb test. The bomb detonated, they entered China airspace, got the sample from the test being conducted in the middle of China and departed the other side, west to east. They were pinged 1 time by radar as they exited the air space. Flight time roughly 28 minutes. That would indicate a forward air speed of at least Mach 6 or 7. Sounds fantastic and impossible to me. But that's what i was told by an actual pilot.

@Imnotyourdoormat

Ай бұрын

@@Ghost_Bear_Trader I don't doubt that story not for 1 minute. Or no more than I doubt the story I told you. He told me that in 1977.

@superdude1759

Ай бұрын

Wow! I believe this! See my comment above about a boom operators story! You'll like it!

@apveening

Күн бұрын

@@Ghost_Bear_Trader Given the neighboring countries, I somehow doubt they entered PRC airspace from due west, so more likely somewhere on the southern border (somewhere east of Tibet) with a (more or less) continuous curve out to sea just south of Shanghai straight to Okinawa. That will take some distance (and so some speed) out of the equation.

I was an Airman at Beale AFB. They marked the 20th anniversary of SR-71 service with a mach 1 plus flyby and boom. Scheduled for 1300 hrs We assembled outside, patiently looking skyward waiting , watching for something. Then at about 1302, boom, which cracked out surprisingly sharply, very similar to dynamite in a quarry blast. I quickly scanned the sky again and noticed a faint contrail that stretched from horizon to horizon! Was this contrail from the Blackbird? Not sure but this made me wonder if it does fly faster than stated?! Brian Shul was a very interesting man and quite an inspiration. Super positive attitude! I got to be around him a couple of times.

@markmatt9174

Ай бұрын

Mach 1 I a single SONIC BOOM for Mach 2 it is a BOOM BOOM for a double Mach triple is yes 3 booms in quick succession. USAF 1986 thru 1993, McConnell AFB KS and Edwards AFB CA. With stinst all over & undisclosed clearances 😊 I was one of two people to help in decommissioning of last active SR-71 in 1992ish (memory) they transferred 2 or 3 of them to NASA for high altitude testing. Somewhere I have a B/W pic with the other individual infront of the bird we decommissioned. Was one of the first digital cameras & about the size of a home VHS camcorder 😂😂😂

@petero.7487

Ай бұрын

@@markmatt9174 Uh, where did you get that from? Generally you get a shockwave off the nose of the plane, off the leading edges of the wings, and off the trailing edges of the wings and tails. WIth the shockwaves producing an overpressure, then underpressure, you end up with the underpressure causing the shockwaves to coalesce into a bow shock and a tail-shock and you get either one loud bang or two loud bangs depending on the size of the plane (the length of the plane and the speed at which the two shockwaves pass you by).

@rdmgwinn

20 күн бұрын

@@markmatt9174 WHAT????

@danfreeman9079

6 күн бұрын

Col Pinsky did a low fly by at MACH and it sounded like the sky was being ripped open. When he landed they put 956 back in the shelter, I went out to help do a post flight and the aircraft was still very hot and some of the paint had turned gray where it was turned to ash. Too fast, too low.

@michaeltaylors2456

6 күн бұрын

@@danfreeman9079 I met him as well. Cool story or should I say hot story? . I recall that he went into city government after retirement. He was said have been an F4 pilot over Vietnam . Going really fast was definitely not new to him

I was a 19 year old Airman, stationed at RAF Mildenhall, 84 - 86. We had SR-71s there. My war time duty was Rapid Runway Repair. So I got to put on my Chem gear, and lay out by the runway, and watch them take off and land. Such a magnificent machine. Great memories.

Glad that I was able to see a live SR-71 at an air show in Missouri in the 90’s. It’s a fantastic aircraft. The concentric rings of fire in the exhaust when the afterburners are on is exhilarating.

@paladinhill

Ай бұрын

We called the AB fire "Diamonds".

@slowery43

3 күн бұрын

how is that remotely interesting or entertaining to anyone but you? Do you really think anyone cares what you may have seen back 30 years ago? wow

1970 Viet Nam, I use to track these on missions over N Viet Nam, and they were WICKED fast! ! ! NVA didn't have much time to shoot at them. Kadena AB, Okinawa, swoop in over N Nam and back home again...no time for an inflight movie.

Like my brother's 1974 Monte Carlo, with a 454 big block with a massive quad carb, was able to keep on accelerating, far beyond the car's steering, braking and suspension's ability to handle safely. And for certain the Black bird is capable of surpassing the stated top speed because it is obvious that the US Military always understates their aircraft as well as many other vehicles performance. I wouldn't doubt that the Blackbird would be capable of speeds in excess of MACH 5, but the fact that she would run out of fuel before her top speed could actually be ascertained is the likely case with those birds. Considering that the aircraft leaks fuel like a bloody sieve when taking off until air friction heats up the titanium plates of her hull enough for them to expand and seal the tanks is just a little hint to her capabilities AND, like the predecessor experimental aircraft, the fuel would begin to boil at higher speeds because of the friction from the air heating up the airframe, most pilot would not want to tempt fate by boiling the fuel that his aircraft is relying upon to sustain flight. Also, the Blackbird literally did not carry enough fuel to actually determine her top speed. by the time the speeds of 3.5 or higher were reached, she would have to slow down and look for the nearest flying gas station. So, unless they actually want to give those old birds a massive overhauling and try to determine their top speed, we will never really know the highest speeds they're capable of attaining.

@petero.7487

Ай бұрын

The fuel leak wasn't really that major an issue: JP-7 could take a 400-500 degrees before igniting and the airframe would seal up as it expanded at speed. The leaking would stop at that point and the airflow would just blow off all the fuel that already leaked. As long as you didn't get to the auto-ignition temperature before that happened, there'd be little problem. The fact that the plane isn't power-limited would ultimately be the issue: Temperature would ultimately push some component past it's critical limit.

@Ghost_Bear_Trader

Ай бұрын

@@petero.7487 They would take off, reach Mach 3, back off, take on fuel and bleed off the excess O2 in the fuel tanks while capping the headspace in the tanks with nitrogen to avoid auto ignition of the fuel in the wings while operating at high speeds and temperatures. The plane leaked because it was designed to stretch in flight from heat expansion. That expansion in length was about 6 inches.

A friend who worked at Edwards AFB (as a senior FTE) told a story of the last official flight (the LA-NY record flight), where the plane was unable to take on a full fuel load so was unable to fly as fast as they planned. Since the plane was going to wind up in a museum after it landed, they weren’t worried about overheating the aircraft, so they were going to “show off.” The original flight plan was under an hour from LA-NY, but without a full fuel load, they had to throttle back. Even so, the plane came close to Mach 3.4 (2242mph) at one point in the trip.

Very interesting video - thank you. You may want to look at the max. altitude: Most reports state ~80K feet. But I have heard that there are recently declassified reports of altitude in excess of 120K feet. I heard a joke about the SR-71 - at the time the plane had just been 'declassified' (?) and the USAF admitted publicly that it 'existed'. Joke goes: SR-71 is flying over Dallas, Texas, designation 'Aspen-XXX'(I don't recall the actual numbers). For fun, the pilot calls up Dallas commercial ATC = "Dallas ATC, this is AspenXXX, requesting permission to 'go to 90 thousand feet'> Hysterical laughter can be heard through the radio as Dallas ATC staff are laughing their butts off. Finally, one ATC controller gets back to ASPEN-XXX - is a VERY sarcastic tone he says ".... yeah, sure - you go right ahead there, Aspen-XXX, and good luck!". Without a moments hesitation, Aspen replies "Roger Dallas, this a Aspen-XXX DESCENDING to 90 thousand feet". Total silence from Dallas ATC !!

@Ghost_Bear_Trader

Ай бұрын

My friend retired from Houston Center was there when they got that call.

according to historical records 1 SR-71 was clocked at Mach 4 before disintegrating during testing because the air frame couldn't handle the heat and friction being generated, then again 2 pilots confirmed that they were able to push the Bird past mach 4.2 on several missions after the test accident. The engines used for the SR-71 were capable of pushing the jet to mach 5

@spikenomoon

Ай бұрын

There is only so much a compression chamber can withstand pressure will become so great the heat will melt the containment.

@thomaswakefield6889

Ай бұрын

@spikenomoon you do know that the engines on the SR-71 were hybrid engines and, at minimum, 30 years ahead of their time. As a matter of fact, the compression chambers of those engines are the ancestors of the chambers Elon Musk uses on his Falcon 9 rockets. This is why those rockets can push out so much force at half the power output required of those used by Blue Origin, ULA, Russia, China, and other space agencies around the world.

@craigbosko2229

Ай бұрын

The A-12 has it's record breaking also but out of respect I'm quit sure that's Classified.

I was in aircraft maintenance in the Air Force and we heard all kinds of stories. The Air Force said the SR-71 was faster than a 30.06 bullet. That’s a speed of around 2050 mph or around Mach 2.7. But there were stories of it doing around 3000 mph. That’s Mach 3.9. The pilots wear space suits. The plane stretches in flight quite a bit and the forward nose cowling on the engines creates a negative pressure in front of the engine meaning it will continually increase speed as the air in front of the engines are pulling the engines forward, not to mention the thrust of the engines. This overcomes drag to a point that blows my mind. Wonder how fast it would go if they remotely flew it and opened it up without restriction?

@petero.7487

Ай бұрын

You seem to be using the speed of sound at sea-level: The speed of sound is affected by air-temperature and from 11000-20000m (36089' to 65617') the speed of sound is around 660.1 mph (573.6 kn.) and that would correspond to around 4.54 Mach. I don't know what the air temperature is above that altitude. I remember hearing something about the inlet and ejectors producing "thrust", but I'm not so sure if that actually meant the inlet was "sucking" the plane forward or merely driving up overall thrust by compressing air (which increased the overall thrust of the engine), and the ejectors were increasing performance by more efficiently driving up the speed of the exhaust. Regardless, the aircraft didn't appear to be power limited, so in effect the plane would accelerate to destruction if allowed to. It isn't the first plane to have this characteristic: The B-58 also fit this profile as well, though it was a bit slower.

@comradeeverclear4063

Ай бұрын

It expanded in flight. Not stretched. Js

@Kornholeeoo

Ай бұрын

@@petero.7487 Low pressure in front of that engine does produce a sucking effect like the low pressure above the wing gives lift. Sucking…for lack of a better word. Like something moving in space with no pressure. It it’s moving, it will continue unless something interferes with it. So it’s not generating pull but there’s nothing in front of it to stop it. That’s the best explanation I can come up with. And yes altitude and temperature play a big part in Mach speed. I just wasn’t going to try to be all technical on a TY post, but you are correct!!

@Kornholeeoo

Ай бұрын

@@comradeeverclear4063 Means the same to me, sort of. But yes, it expands with the heat and friction. I got to meet Chuck Yeager at the aero club on Travis AFB in the late 80s once. He had some wild stories and he used the word, stretch, a few times when talking about breaking the speed of sound. He was so down to earth. But the bravery that man had…balls of steel. 🤣

Alex, I just love how excited you get just doing your job! You’re a lucky man, doing what you love - good for you, brother. And thank you for contributing yet another Blackbird episode to my ‘Blackbird’ playlist collection; there are never too many. And thank you, EVERYONE, who leaves comments about technical details and especially prior experiences with this entire program. There are currently over 1200 comments, and I will go through the entire list. I ESPECIALLY appreciate reading from the people who worked on the design, manufacture, maintenance, and overhaul of the airframe, avionics, fluids, and the J58. It’s great to have watched so many pilot interviews, but there’s just not enough written about and by the folks that made the ‘Bird and kept it flying.

I was stationed in Okinawa when the Habu's were retired and flown back to Beale. I was called to a loud noise complaint at the Officer's BOQ. Upon arrival, a bunch of the SR-71 pilots were having a party before leaving. It was no big deal, and they weren't "trashed", they didn't realize things had gotten a little too loud. All were cool about it. After I explained what I was there for to the ranking pilot, we just started BS'ing a little, and I happened to ask, just how fast "really" was the Habu. He told me he didn't really know. Anytime "the enemy" sent a SAM, if it looked like it was going to get close, they just increased the throttle a little bit until the SAM ran out of gas, then backed the throttle down. We both laughed, I handed his ID back to him and told him to have a good night. I did notice that our Shift Commander's wife was in the room partying with the pilots (and she was trying very hard not to be seen) ... but that wasn't my business.

@user-fs3um5vq1t

2 ай бұрын

OK, FYI.... I Was also at KAB 1977-1982 TDY, AND PCS 1985-1988

@clarenceobert5860

2 ай бұрын

Got there just after you left. 89-91. PCS'd to Minot. One of my better assignments. If I had to rank my assignments ... 1. Clark AB, PI; 2. Kadena, OK; 3. Minot AFB, ND; 4. RAF Welford, UK, 5. Nellis AFB, NV, 6. Kunsan AB, ROK; and 7. Cannon AFB, NM.

@user-fs3um5vq1t

2 ай бұрын

@clarenceobert5860 Kool. I was wondering if I would get a reply. Thank you! A lot of people don't know this but, it was the tanker Navs that ran ALL of the air refueling rendezvous...I never missed an A/R... Oh boy, do I have a lot of stories. The best one is when in the late 1970s the SR flew round trip out of Beale and return, he flew about a 12 hour sortie that day!! I believe that was the longest mission the sled flew.....Anybody out there know of any others? Thanks for the reply.

@brucesmith4245

2 ай бұрын

I worked the navigation system on the HABU for ten years. I was TDY to Kadena in 76, 77 &78, PCS 79-83.

@jansobieski7470

Ай бұрын

​@@user-fs3um5vq1t during 6 days war in 73 a BB came to my base on east coast... it was secretly housed in old WWII hanger... it would fly over Israel and neighboring areas for obvious reasons... it would depart before sunup and not return until after dark... so, figure daylight in Oct and then you'll know how much flying time was envolved...

What a glorious plane. And created during the days of performing calculations with slide rules.

They didn't lie, it's called keeping your enemies in the dark. The ceiling and speed were both 'rated' for a certain amount, but I guarantee you that they were Much higher than ever openly stated.

@jasonjanes3256

Ай бұрын

approx 6400 mph - thats classified

I like how the continued secrecy around the Blackbird means Kelly Johnson's legend continues.

@LukeLewis

2 ай бұрын

Yeah this was on of Kelly's amazing successes for sure. But he has a whole lineage of planes that will make his legend continue for quite some time.

@SgtSteel1

Ай бұрын

The secrecy has nothing to do with Johnson.

@EdWeibe

Ай бұрын

whatever@@SgtSteel1

Durning the Grenada operation, SR-71 were operating out of Pattick AFB, Florida. They would open the hangar door, the plane would roll out and immediately take off (To minimize time on the ground for OPSEC). SR-71s would roll down the runway just long enough to lift off slightly, then point the nose almost vertical and hit the gas.... out of sight in less than 15 seconds... unbelievable.

@TykeMison_

2 ай бұрын

complete bullshit

@susanwahl6322

2 ай бұрын

The pilots always said that the SR-71 could go faster than it needed to go.

@stevenbass732

2 ай бұрын

​@@TykeMison_Obviously you have never seen it happen.

@CompOstang50

2 ай бұрын

​@@TykeMison_American Airlines used to take off in the same manner.

@dukecraig2402

2 ай бұрын

SR71's couldn't lift their noses anywhere near vertical on take off or they'd break right where it's neck meets the wings according to the pilots, I forget what their limit was the pilots say in interviews but as I recall it wasn't even 45°. And they didn't get to the end of the runway and leave immediately, it took at the minimum 2 minutes of them sitting there for the pilot and back seater to do what they had to do and for the celestial navigation system to lock onto the 3 stars it was programmed to use as reference points for that particular mission, even in broad daylight it could see them, they didn't hang out at the end of the runway for too long but it took them at least that amount of time to get ready. As far as this click bait video goes the SR71 couldn't fly "much faster" than what the Air Force admits, first off there's no reason for them to lie about an aircraft that's retired and will never fly again, and the guy's who flew them have all been cleared to talk about it's performance parameters by the Air Force, the only thing they don't want them talking about it's electronic warfare capabilities since some of the equipment is still used in the U2 which continues to operate, but when it comes to how high, how fast and everything else in that regard they're allowed to say anything they know, and they'll all tell you that the listed speed is considered it's top speed, it's capable of flying faster but not by much and there's no real reason to do it plus any pilot who did so would probably lose his job because of all the additional maintenance and most likely engine replacement that would be a result of doing so, at it's listed top speed which is where they flew their mission's the metallurgy of the engine's is designed to handle the heat, any faster and the heat increases to the point where the aircraft would have to be taken out of the flight rotation schedule due to all the different inspections that'd be required from getting the engine's that hot, another aircraft and it's crew would have to be brought in from another base that houses them to cover for that one, the list of headaches and problems from doing it would cause heartburn with all the wrong people and it'd be the last time that crew saw the inside of one for the rest of their lives, also the way speed is measured with aircraft any speed an SR would have hit in a nose down attitude doesn't count. As pointed out by the creator of this video which also shows that it's title is malarkey the small amount of speed over it's listed top speed that a few SR's are rumored to have hit certainly isn't "much faster" than what's listed so all the hoopla over it is just dumb and pointless, it's not like it can actually go mach 4.7 which would be something worth getting excited over and would prove they were hiding something about it, people's imaginations just go crazy over those things and there's no point behind it, there's no secrets about it, it's a retired aircraft that the Air Force and the pilots who flew it have given full disclosure about it's performance, there are no secrets about it with the exception of it's electronic warfare capabilities the Air Force doesn't want talked about because they're still in use, and no one cares about it anyway, top speeds of aircraft are no longer an issue, China, Russia and no one else cares about anything like that which is why all the hubbub over someone at Boeing accidentally misspeaking about the F15's top speed is just silly, stealth capabilities and weapons capabilities are what they're concerned over, our potential enemies could care less whether or not the F15 can actually fly 200 MPH faster than what's listed, the only people it keeps awake at night is aviation fanboys and their vivid imaginations.

My father worked space track at Cheyenne Mountain in 1968 during the Vietnam War. After the blackbird was decommissioned he told me a few stories that indicated that the blackbird was both faster than it's official top speed and could fly higher than it's official altitude ceiling. I am certain the pilots were trained fully in the capabilities of the aircraft and never reveal it's true capabilities. You have to remember that the aircraft was designed in the late 1950's and built in the early 1960's with many upgrades to it's equipment over the course of it's close to 30 year operational life. Among the upgrades I am certain they included avionics, engines, flight controls, computers, optics, and frame modifications and coatings. This combined with public statements that the frame was stronger after 30 years of service than the day it came off of the factory floor to me infer it's capabilities far exceeded the original 1950's designed performance capabilities.

If you have the original VHS version of Great Planes for the SR-71 which I do. There is a snippet of radio traffic between a tanker crew and a SR-71 pilot in the program. In all the up to date versions the pilot says "proceeding to mach 3" which matches closed captioning. If you have the original VHS he clearly says "proceeding to mach 5." They did a very good job of altering all the modern copies, but played side by side you can tell the difference and the original is quite clearly not mach 3.

@ronjon7942

2 ай бұрын

Or the pilot was just fkng around. You think any might have ever said “proceeding to warp speed” as a corny joke? I’d say everyone would know he was kidding, but after reading a bunch of these total bs comments, now I’m not so sure about that.

@Ghost_Bear_Trader

Ай бұрын

An SR71 pilot once told me "At night, Mach 5 looks like a shooting star" I asked how he knew. "Because I was the one flying it."

@superdude1759

Ай бұрын

Wow, "cynic" much? Just curious, what qualifies you to state that "all these comments are BS?"

I one knew a guy who said he worked on radar systems during the initial testing of what he believes was the Blackbird SR71. The rate at which he said it entered and exited his airspace had him thinking his equipment had malfunctioned. He never disclosed how fast it was going, but when I said “Mach 6?” He was like, “No, we’re talking much FASTER than that…” The stuff they share with us is light years behind what’s actually in use, quietly protecting us every day. ⬛️🇺🇸⬛️

@paladinhill

Ай бұрын

Your friend was on crack.

Many years ago a friend, now deceased, told me of monitoring radio reports of the last flight of the SR-71 that was donated to the Smithsonian. That flight was from LA to Washington D.C. He swore that he wrote down the time it left LA and the time it arrived in DC. He consulted a map and did some calculations. He came away with an average speed significantly higher than they would admit to at the time. And, being an average that included take off and landing, the max speed at altitude would have to higher. Somewhat later, when the Air Force reported on the flight, they gave departure and arrival times that were different than my friend had written in his notebook. He swore that the Air Force was covering up the actual max speed of the aircraft.

@Lightning546

9 сағат бұрын

That flight reportedly took 15 minutes and change, before the flight times were modified.

I had a friend that was a Lockheed SR71 test pilot. He told me the limiting speed factor was the windshield temp limit. Which he usually saw at around Mach 3.3. But he noted that at that windshield temp limit, he was only at about 1/2 power lever travel.

@WilliamMurphy-uv9pm

2 ай бұрын

Your friend has a big mouth and apparently so do you. How much of this is still classified and why don't you care?

@gauloiseguy

Ай бұрын

Your friend probably told you it's top speed over shorter runs.

toI was a KC-135Q Tanker Task Force Navigator in Kadena AB during the mid 1980s and personally clocked the Sr-71 at above 3.5 Mach! We were airborne skirting the Russian border to air refuel the HABU on a post strike A/R and our jet was at FL330 and we saw a contrail above us, so I turned on my ranging equipment

In the early 1980’s, my flight instructor, just retired from the Air Force as an Lt as an aerospace engineer, told me he worked on one of the first laser tracking systems. During one of the tests, he tracked the SR-71 at over Mach 4. He excitedly said this to the his Captain. The Captain told he did not. But he said back, Yes I did!! Captain said once again, No you didn’t. That’s when he got it. I don’t know if his recounting of the story was true, but he was one of the smartest engineers I’ve ever known.

@wireflight

Ай бұрын

I knew an AP who was in good with some of the SR-71 aircrew and maintenance personnel during the Vietnam era; he said they were always over 3.8 and quite a few were well north of 4 (4.2-4.5; idre). They used a special paint on the inside of the airframe that changed color according to temperature; correlated to speed, it gave the maintainers & reviewers indisputable evidence - not that a SR-71 crew would ever “sandbag.”

@tedhursh7672

Ай бұрын

Had a Navy ATC buddy who talked with a 71 pilot and admitted that they were able to bump it upwards of 5.0.........very believable........@@wireflight

@shrimpflea

12 күн бұрын

@@tedhursh7672 Complete BS

There’s a YF-12 on display at Wright Patterson AFB. When it was delivered to the base it was put on display for base brass and dignitaries. My buddy and I snuck in with our ROTC Uniforms and looked in the cockpit. The seat was gone but the Air Speed indicator went to Mach 10.

I talked to a back-seater for an SR-71 quite a few years ago (early 1980s) and he would neither confirm nor deny the plane's max speed and max altitude. He did tell about a pilot for another SR-71 who flew over the Middle East and triggered a live fire response with air-to-air missiles...the pilot laughed and said he was kicking in the afterburners which turned the leading edges of the wings white-hot!

5:20 yeah Mach 3.5 is the official top speed but it can go much faster but it wasn’t safe for the pilots or the aircraft to max out the Blackbird somewhere around Mach 4.1

I was stationed at Hickam AFB '77-'81, returning from a JC-130 training flight taxied past a Blackbird on the tarmac. The heat shimmering effect was amazing...

I volunteer at the National Museum of the Air Force where we have an SR-71 and an AF-12. The info in this video will make for some interesting conversations when showing and discussing these aircraft with our visitors! Thanks for sharing your research!

in the 70's, I remember a pilot home on leave talk about a ship he test flew and at top speed if he got his gloved hand close to the canopy, he'd get burnt through his glove! In 2016 he admitted it was a "blackbird" said top speed was still "classified"!

I attended a Bible school in Tulsa OK in 82-83. One of my teachers was Brian McCallum who was a LtC in the USAF and flew the SR71 in the days before. He said that the top speed they listed was more for the benefit of our foes, but it was much more than that, by a good bit. He recalled telling his wife at Edwards AFB that he was going to Norway...for lunch. He'd be home for dinner, though. Not to worry. He remembered starting his landing pattern / glide path over Seattle WA dropping in to Edwards.....

@apveening

2 ай бұрын

Nice story about going to Norway for lunch, but slightly incredible, just take a glance at the time zones.

@Bob-fk8vd

Ай бұрын

@@apveening Actually not so amazing. Depending on hoe fast they fly. Flying over the north pole. What time he left in the morning he could have lunch and then return. Remember they fly up and over the pole not going straight around the world.

@apveening

Ай бұрын

@@Bob-fk8vd I was already assuming shortest/fastest route. But breakfast time in California is already past lunch time in Norway. The time difference is nine hours.

@user-im2hz4ki2o

Ай бұрын

@@apveening I think it’s more like this: He was leaving home that morning and would be over Norway during lunch, California time. For example, as a crow flies (or as it happens, a blackbird in this case?), Helsinki is about 5600 hundred miles from LA. At an avg speed of 2200mph, that’s about five hours round-trip. Let’s add +1hr to decelerate and refuel a few times. +1.5hrs to get to the airfield, brief, preflight checks +1.5hrs to land, disembark, debrief and drive home. (My durations are a guess but seem reasonable for a plane and mission with dedicated resources to maintain rapid response readiness) That’s just 9 hours - if you have breakfast and leave home at 9am, you’re eating your lunch over Norway at around 1pm California time, and home by 6 PM for family dinner. Even if we spend an extra hour flying over Norway, we’re still home by 7pm for pot roast.

@superdude1759

Ай бұрын

I believe this is true! See my comment above on main page! Was that ORU or Rhema that you went to!

For my 50th. birthday a friend took me to the Air and Space museum in Huntsville. I got to see the SR 71 up close. Beautiful machine.

@LukeLewis

2 ай бұрын

Not that it will burst your bubble too much - but the airframe on display in Huntsville is actually not an SR-71, it's an A-12 - which in my opinion is a better aircraft though less popularized. That particular ship is airframe #7 of 12 built for the CIA. I also agree it's a beautful machine up close!

@larry3064

2 ай бұрын

​@@LukeLewisThanks, my mistake

@LukeLewis

2 ай бұрын

@@larry3064 no mistake had - was just letting you know, lots of people don't realize it!

When working on the B-58 Hustler supersonic bomber during a debriefing of a flight crew a reported problem with one particular aircraft was that the aircraft was exceeding the Mach indicator reading when the throttles were pushed all the way forward. In other words the aircraft was drastically exceeding Mach 2. One particular Hustler nicknamed "Greased Lightning" as far as I know still holds several records including a flight from Tokyo to London (a distance of 8,028 miles) in 8 hours, 35 minutes, 20.4 seconds. As of 2016 that record still stands.

I was stationed at Kadena Air Base in Okinawa in 1981 with a Marine Corps Harrier squadron. We got to see the SR-71 and the F-15 in action quite a bit. Amazing aircraft!

I like an interview with a SR-71 pilot. He said they were flying over Libia, and a surface to air was headed their way. He said “ I pushed the throttle forward and out ran the missle. I can’t tell you how fast I was going but I didn’t think it could go that fast”

@Ghost_Bear_Trader

Ай бұрын

SAMs can travel up to Mach 3.5

@robertkesselring

Ай бұрын

@@Ghost_Bear_Trader In this context though "out ran the missile" doesn't necessarily mean they went faster. It just means that the missile couldn't close the distance before it ran out of fuel.

@Ghost_Bear_Trader

Ай бұрын

@@robertkesselring SAMs were closing. Blackbird matched speed then pulled away. SAMs falling further behind eventually ran out of fuel after a few moments. Look around on KZread. The video is here somewhere.

@thunderbird1921

Ай бұрын

I think that happened with North Korea as well. The KPA (North Korean army) fired a missile at it, so the pilot just throttled up until the missile went off course or ran out of fuel. It's understandable why this plane just drove the Commie Bloc CRAZY.

I had a teacher in aviation school who was a retired air traffic controller. While working as an air traffic controller one day he was in a staff meeting about the SR-71 would be coming through his airspace at a particular time. The speed would only be listed as SC (speed classified). When it did finally show up in his airspace he made a couple of marks on his radar screen that defined a specific distance. He timed the SR-71 between those two marks and the speed he calculated was 3500 knots per hour (ground speed). The speed of sound is 767mph which makes 3500 kph is Mach 4.56. Later I talked to a friend who was a retired Air Force pilot (F-16s and AWACs) who told me the Mach 3.2 speed of the SR-71 is Vopt (optimum speed). If you go ogle the title " ‘Blackbird’s Top Speed was Officially Mach 3.2 but the SR-71 was Much Faster Than That,” former Skunk Works Engineer Says" published on 25OCT2019 by Dario Leone he says that Blackbird pilot Brian Shul once pushed the aircraft to Mach 2.91.

@zerojin2

Ай бұрын

I also expect the Blackbird's speed to be incredibly fast, but I found a mistake in your calculations. 3000 knots is equal to about Mach 4.5 3500 knots is equal to about Mach 5.25 3500 miles/h is equal to about M 4.56

@somaday2595

Ай бұрын

Don't forget Mach speed is a function of air density. At typical conditions, Mach 1 ground speed at 60,000 ft is about 86.7% of the ground speed of Mach 1 at 0 ft.

I met a Lockheed chief engineer a few years ago. He worked on the SR71 upgrade in the 80s. he also told me he was certain the plane could reach mach 5 and believed it could fly mach 7. he was just a down-to-earth but very intelligent guy. i could see no reason for him lying

I was visiting my USAF Uncle in '68 and we went to the base at Elgin - an SR71 had come in and we could see the verticals as we passed a hangar. I asked if we could see it, so we drove down the hill to the hangar. A security guy started walking toward us as we approached and I saw him kick off the safety on the M16 - -we stopped, he stopped and stared like a stone. We backed out of there as we had entered. I heard it went out the next night and a little show off ( or maybe not) pilot hit the full burners on TO and it blew out some windows in the officers club which is right at the end of the runway. It is a wall of glass. What a fantastic piece of machinery, I followed it since the early 60's when it first hit Popular Mechanics in a little blurb with a photo. There is a single engine drone on a spike at the Skunk works - it would launch off the back of an SR71. Looks like a science fiction thing. Everyone should read Kelly Johnson's book.

I had the opportunity to talk to the test pilot who set the "speed record" in the blackbird. He told me his orders were to keep it believable. I asked how fast it would go and he replied that first of all that was top secret and second, he was never allowed to open the throttles to find out.

I spoke with a retired AWACS officer if he had ever encountered any SR-71's and he said yes, they usually got a heads up to turn off the radar before they were in range. Sometimes they wouldn't and they'd get a mysterious very fast moving track they assumed was one. He never verbally said how fast they were, but he did hold up 5 fingers i.e. Mach 5 based on the tracks he witnessed. Naturally nothing was official.

@superdude1759

Ай бұрын

Hey see my comment on the main page at the top. I was amazed too read your comment! I think you'll like mine too!

@1rgam3r

Ай бұрын

Yup. Won’t say more than that. 😉

Video from 3:20 to 7:20 is the best 4 minutes I ever listened to regarding the Blackbird. Concise, cogent and the numbers were quoted and displayed. First rate.

I was a sensor operator on a p-3c Orion and while deployed to Kadena we did a mission and tracked one coming down the bering sea over the Kamchatka peninsula at 2466.93 knots that is Mach 3.7 back in 1991. During our debrief we heard that one pilot on his way to retirement pushed her to Mach 3.9 trying to hit Mach 4.

Most epic manned aircraft ever built. I've had the fortune to see 2 of them at different air/space museums.

I have read some comments by SR-71 pilots (Brian Schul, perhaps?) that all it took to establish a new speed record was to advance the throttle.

Alex has added a much needed avenue to millitary aviation/aviation in general. Yet to see him do a video I didn't like, didn't learn something from or didn't find interesting. GREAT work!

my Dad was personal friends with several SR-71 pilots. He was former Air Force and had top secret clearance through the FAA. He told me once that two pilots confirmed that they had taken the SR-71 over 100k in altitude and taken the SR-71 more than double the posted speed. They also said that it happened over China while they were spying on Russia. They were flying for their lives. They were literally running from Russia's fastest anti-aircraft missiles. China had given permission for the U.S. at time when relations were not going well between China and Russia.

@gr8crash

Ай бұрын

Lol none of that is even remotely true. The SR71 never flew over 100k ft, never flew that fast, nor did it fly over Chine or even Russia. And the FAA issuing a TS clearance? Never heard of that before either, the highest they usually issue is Secret level.

Amazing this was developed in the late 1960 early 70's. 40 years later it still is amongst the greatest aircraft ever built. Says a lot about the brilliant team behind it's development. :)

In 1972 I was in Okinawa. There were 6 open-ended hangars facing the highway and you could see the Blackbirds (we called them Habu after the local venomous snake.) Operational missions left the ADIZ so quickly there was no special note needed. When a Cathy flight (an FCF, Functional Check Flight) was needed we received a call to go to the secure room, place the correct IBM punch card in the encrypted phone system and received the takeoff time and the exact Cathy profile that would be flown. You retrieved the profile diagram from the safe and waited. The flights typically proceeded to the northeast corner of the ADIZ and flew straight to the soutwest corner. The location times in minutes after takeoff were entered on the diagram. Knowing the diagonal distance accurately, the small number of minutes gave a speed of about 3300 knots. I know nothing of the altitude profile, it may have been descending to keep thrust & temps down, but these flights were intended to accept an aircraft back from maintenance and put it back on the line for missions. This would not be a cruising condition.

@paladinhill

Ай бұрын

3300 kts. not possible. Maps with straight lines are not accurate routes. You needed to calculate for a Great Circle route.

Decades ago, Aviation Week and Space Technology claimed that their research indicated that the SR71 could do close to 3,000 mph at 125,000' altitude. A little later a retired (now deceased) AF colonel told me "that was a little conservative" ! Absolutely mind boggling.

I once knew a retired SR-71 pilot and he told me that the SR-71's absolute top speed was Mach 8.9. I kinda didn't believe him, but seeing a comment here about doing Mach 4.7 at half throttle, there's a chance that it could be true.

@craigbosko2229

Ай бұрын

Possible but I have my doubts but if so then that Aircraft would be in SPACE.

@gali01992

Ай бұрын

@@craigbosko2229 Not quite. Mach 8.9 is 6800 MPH but 18,000 MPH (Mach 23.5) is required to achieve orbit.

I was working at a guard station at the end of a runway when an SR-72 took off and nearly ripped the roof off the guard shed. The General beside me was pissed.

@ronsutherland4025

Ай бұрын

I can vividly picture the scene!

@superdude1759

Ай бұрын

Hilarious! THANK YOU for that... Still laughing! How did all of these funny people and up commenting of the SR-71?

@REnninga

Ай бұрын

You just exactly described a scene in "Top Gun: Maverick."

I'm reminded of a comment by Maj. Brian Shul in his well-watched speech at the Lawrence Livermore Nat'l Laboratory: "I can tell you that the plane goes faster than what the book (pilot's manual) says it will go." Another time: "we were going over 2000 miles per hour and I still had 6 inches of travel on the throttle." Also, in the "LA Speed Check Story" The L.A. Tower gave him 1992 knots over the ground." A knot, is 7, but MPH is 8. So there's a 1.14 conversion factor. 1992 knots = 2270 mph. And that's what Brian and his back seat man Walter were doing on a routine training mission.

When they were flying one to Andrews AFB it’s now at the Air and Space Museum by Dulles Airport VA. It flew from the Pacific to the Atlantic in 58 minutes

For what it's worth, a relative worked at NASA's Langley hypersonic wind tunnels, and he told me that, the A-12/SR-71 models were stable when tested up to Mach 20. So the design is capable, only limited by engine functional limits.

@RobertR3750

Ай бұрын

I question the veracity of that claim. A google search of NASA's hypersonic wind tunnels doesn't show anything with a capability over Mach 10.

@michaelgrey7854

Ай бұрын

You know that a person is fibbing when they start off with "a relative..... or a friend of a friend of a friend....said.

@paulreid2223

Ай бұрын

​@@RobertR3750 And you believe Google ?

@RobertR3750

Ай бұрын

@@paulreid2223 Google didn't say it. NASA did. Do you have any verified source that shows NASA is lying?

@petero.7487

Ай бұрын

They did have a 20" tunnel, but that wasn't to Mach 20.

the black bird has been my favorite for 40 years now. my favorite fighter is the Vought F4U corsair.

The Blackbird was flying as a prototype 50 years after the first EVER flight, which was less distance than the wingspan of a 747!!! It was designed without real computing power, and to me, remains an incredible and under estimated achievement. It is also my second favourite aircraft behind the Spitfire.

As a young teenager in the early 70’s. And was always interested in the advancement of science. Remember, we didn’t have internet. I remember reading an article in TV guide, about SR71, going into space by accident and having to figure out how to comeback into earth by inverting and trusting to break back into the earth’s atmosphere. I distinctly remember them saying that the SR71 was capable of Mach 5! I do not know if this was a factual story. Sure was entertaining.❤

In the 90's Shul stated that problem was with airframe and engines ware. The amount heated generated at speeds above MACH 2 take a serious toll on all aircraft and its engines, the SR-71 was no different. Even though the SR-71 was designed to fly at higher speeds and high altitudes longer than any aircraft before, there were still physical limitations. He said limits were put on how fast, how high and how long you could run the aircraft to preserve the airframe and engine life time. He said the SR-71 could go faster and higher than stated with no short term problems. But you would basically be cutting the useable life time of airframe and engines up to half.

I remember when the first Space Shuttle flight happened. As the Shuttle over flew mission control stated that it was moving at Mach 6. A few seconds latter mission control stated that the chase plan had caught up with it. A few seconds latter misson control stated that the shuttle was at Mach 5.

@everettstormy

2 ай бұрын

Are you sayin the sr71 cought up with a shuttle moving at mach 5?

@Alphqwe

2 ай бұрын

@@everettstormy Can you name any other aircraft that was avable then?

@everettstormy

2 ай бұрын

@@Alphqwe I don't think it's possible for an s12/71 to go Mach 5

@Alphqwe

2 ай бұрын

@@everettstormy all I can is what I heard.

@everettstormy

2 ай бұрын

@@Alphqwe your English is terrible. I'm sorry if it's not your first language but I assume your American if you have old sr71 and space shuttle stories