Whole engine is a turbo but it still spools quicker than most boosted civics😂

@EvanLuft

10 ай бұрын

Hahahahahah

@shaneross1998

10 ай бұрын

But they still gap 😂

@jonslg240

10 ай бұрын

@@EvanLuft Haha yeah.. why don't you mention that in turbines once you're up to speed it responds much quicker since you're changing the propeller angle way more often than you're changing the turbine speed? I'm asking respectfully because I'm definitely no expert.. for example: maybe in this exact turboprop that isn't usually the case.. Or maybe that's not the case in many of em, just the ones I know about

@philconey11

9 ай бұрын

@@jonslg240 He did mention that.

@MJRSA9404

9 ай бұрын

​@@jonslg240 he literally did

Half the training planes i flew had a delay and a backfire… so we’re good :)

@garrettnelson2293

9 ай бұрын

Quality 😂

@mikesierra8593

9 ай бұрын

In simulated preparation of flying P&W turboprops.

@Ovahlls

9 ай бұрын

Yea and if you're planning on flying commercially with big ol jet engines this plane's delay is actually pretty good in comparison. They're typically

@mii747

2 ай бұрын

I lived for surging engines. That pop and yaw was awesome for me, not so much for the 80 odd passengers and crew.

King Air pilot here. It's not a big deal.

@OneSquidOneBike

9 ай бұрын

Nice! I have to look at my flight school’s King Air’s every day and all I can do is dream lol. You’re a cool guy.

@Physco219

9 ай бұрын

​@OneSquidOneBike yeah I have the same wishes to fly 1 but due to reasons it will have to wait until my next lifetime.

@dieselyeti

8 ай бұрын

@@OneSquidOneBike LOL thanks. I'm actually kind of a geek but I do have a cool job.

@OneSquidOneBike

8 ай бұрын

@@dieselyeti Coolest geek I know. Keep flying brother 🤙🏾

@poloska9471

8 ай бұрын

Unless you stall the airplane on a go-around 😂 jk but not jk because there have been boat loads of cases where airplanes crashed because the power kicked in too late to save it but that’s not really the airplane’s fault, more so the Swiss cheese deal that lead up to it.

A little fact about the PT6 engine is that because it’s a free turbine you can hold the propeller if you start the engine and don’t add fuel. Same thing cannot be said for the TPE-331 because if you try to hold the propeller as you start a Garrett the torque will lift you off your feet.

@Goliver98

9 ай бұрын

Yeah we have operated Garrett’s my whole life and I was around my first prat this summer and it was wild.

@johnbarnedt5207

9 ай бұрын

The down side is, Garretts are really noisy!

@Physco219

9 ай бұрын

Or just rip your arms off. 😂

@kzmechanic

8 ай бұрын

True but no one should play with a propeller while the engine is running 👀

I generally bring the torque back to the bottom of the green line to start configuring for landing. 200lbs is my personal minimum. That delay is different for each engine when your TT is 63,000 hours. I brought it all the way to flight idle in a descent once and then brought it back up to low cruise. It took one engine 6 seconds and another 3. Weirdest yaw of my life. So I just keep em a little spooled so I don't have to deal with that.

@dieselyeti

8 ай бұрын

Or leave the condition levers in high idle?

@philconey11

8 ай бұрын

@@dieselyeti Not necessary at all for the runways I land on. Generally not recommended to run condition at high idle unless you're doing a short field landing and you need reverse to spool quickly.

@dangeary2134

6 ай бұрын

Sound like you would have made an excellent SR71 pilot, especially with the way the afterburners would not engage at the same time!

That simple demonstration with explanation was invaluable!

Still less delay than my diesel truck's boost lol

My man explaining the basics of a turbo that's been known for 30 years

@AcidGambit419

8 ай бұрын

It's not a turbo it's a turbine

@JoshuaTootell

7 ай бұрын

I wonder why the word "turbo" and "turbine" are similar? Could it be because a turbo has...a turbine ​@@AcidGambit419🤔

Wait till you see how long it is in jets! Big part of the transition from Turbo-Props is the being ahead of the power.

The delay is more caused by the fuel control than the free turbine. The second valve in the FCU opens wider as the air pressure P3 rises. This slows the addition of more fuel fuel to prevent temperature spikes. You can see the smooth gradual increase in fuel flow and N1 and therefor the air that drives the prop section, during the start sequence and when going from idle to full power.

Sounds like my Audi. Three to four seconds after I am out in the damn intersection the turbo decides to spool up! Be safe out there.

@davidelliott5843

8 ай бұрын

Sounds like you have a mechanical over-boost situation. Turbo spools up too far so ECU cuts fuel. You’ll eventually get the power but it takes ages. Fit a boost pressure gauge to see what’s going on.

Wait til u see the delay on jets if u think thats bad lol

@JosephSastreShowsYou

8 ай бұрын

I’ve heard that.

@AverageAlien

2 ай бұрын

This is a jet....

This delay keeps the turbine blades in the combustion chamber from melting from the surge of fuel and heat. Cool intake air requires a few seconds to arrive in the middle inferno.

Can I log this video as dual? :)

@maurymcc

9 ай бұрын

Go ahead… but you might think about missing tomorrow’s training flight!😂

Had the same engine in our DHC-2T on floats. Lovely setup especially for tight docking situations.

IN street racers, they use nitrous oxide to cause the turbo to spin faster with a burst of nitrous. This lessons the turbo lag. Peace.

This is exactly the tip I got when I was right seating on a PC-12. Honestly it wasn't a big deal since most of the pistons I fly are either clapped-out sh**boxes with engines that want to sputter on every occasion or those with those annoying Vernier throttles that you have to twist like mad to move an inch.

You are sort of correct. The free turbine assembly of the PT6 is not a contributer of lag.

@SaitekFreak999

9 ай бұрын

I'd argue it reduces lag because it allows the gas generator to spool up faster due to lower inertia.

That spool up is dangerously seductive and never gets old with the C90 I fly. Happy flying dude!

As a MFSF2020 PIC, I thank you for this information 👨‍✈️

Congratulations on your transition. So brave.

I'll keep that in mind.

PW120 engines (Dash-8-100) are almost instant with power changes.

There's a delay when you take away throttle also.

I’m not a pilot, but I enjoy learning this stuff🤔

Legend has it the hangar behind him has a sand Haboob swirling inside to this very day.

Life must be tough for a good looking man with pilot skills.

my god even the pilots are transitioning now

Love your content man. I'm a ppl right now. I appreciate any info you give. 👍👍

Wow, you really have to make up your mind in time for a “go around” Thanks

P&W on the engine nacelle doesn’t mean Pratt & Whitney… it means “Push and Wait”.

"There is a three second delay, this gives me enough time to dodge this building as the plane is about to take off"

I was waiting for him to plough through that shed

Those PT6’s sound lit 🔥

Some of the larger P&W turboprop engines have Electronic Engine Control. There is no delay, power is available much like a recip. engine. It helps you cover your butt when you screw up the approach.

I like that explanation in front of a hanger 😂 Show us full power please we wanna hear the turbo roaring.

Take it back and ask them to adjust the timing. 😂

On occasion a C-130 would have some kind of mechanical problem on my base in RVN. The USAF would fly in another C-130, fix whatever was broke and since they used single spool turbines(Allisons iirc) they would spin to start the turbines on one using the prop wash of the other. We were just happy to see them get that thing out of there since the NVA were always watching and a stranded C-130 was a very high priority target and the longer it stayed the more likely we would be bombarded by 122mm rockets, not fun.

the sound of the throttle increasing about to give some grandpa flashbacks

Sounds like driving a semi truck going from a C-15 cat to a Cummins X15.

Exactly how a guy explained a turbo on a four-cylinder Ford Thunderbird to me makes perfect sense to me

It’s all about inertia. It takes time for the gas generator to spool the assembly up to make that thermodynamic power, then that gas power transfers to the power turbines to spin up the mass that is the power section and the propeller to make HP. All about inertia.

Same transitioning when going from ICE to EV. Instant Torque is INSTANT!

I love turbo props! Wish I could fly one. The closest I got was to fly the piper Arrow PA28 Turbo. It had a delay when increasing power as the turbo charger kicked in. A pleasure to fly!

It’s called turbo lag. It was very common in the 80’s turno cars. Today technology managed to reduced virtually to zero that lag in modern cars

Turboprop motor sound Is Life ❤

This is like running some heavy equipment. So damn much drag on them, they take a bit to catch up!

Oh, what an amazing point. I will try today

We have to deal with the same turbo lag in auto racing. If you want to be applying close to full power just before the middle of a corner (where you would want to have full turbo boost), you need to start opening the throttle while you're still early, sometimes while you're still braking, before a quarter way into the corner (or earlier!) so that by the time you're approaching mid-corner, you already have the boost up and have the engine acceleration available to you. If you wait till mid-corner to put the power on, you may not get full Boost until you are out of the corner, and at that point people are driving by you. That's why a PRWS alarm, or a go around /TOGO maneuver, needs to be reacted to so quickly because you're going to lose what seems like an insane amount of time waiting for those turbines to spin up. It's one of the reasons that Pilots are at full power Landing on an Aircraft Carrier. They would be off the side and in the Water by the time their turbines spooled up.

MSFS taught me this whenever I fly the King Air

Man them babies sound sweeeeeeeeeetttttt!!!!!

Another thing to get used to is all the torque these pt6 engines put out. On larger jets you have to turn the throttle up slightly to balance both engines before going full throttle. I would imagine you have to trim to keep all the pressure off your right pedal on take off.

This must be a feature in air crash investigations and training to avoid crashes

There isn’t much of a delay in my 427 in my 1966 Chevelle. It flies.

Really scary when that happens at a busy intersection and people behind you are honking.

Turbo lag.... a tale as old as time.

This one of the many reasons you have to think ahead when flying... in general

@EvanLuft

3 ай бұрын

I agree

Thx bro, even though i have no ppl, no cpl, and no plane

On take off, set enough power so the props are at their full rpm then you can swiftly apply full take off power within engine limits wothout bouncing off the governor

Thats super interesting I hope I remember this if needed

I don’t fly fixed wing so correct me if I’m wrong, but if you ramp up the power super quick for takeoff doesn’t it bounce off of the prop limiter and hurt the engine? Obviously not like severe damage, but if you do it enough times it might start showing its wear and tear? What kind of damage does that do?

Does it work the same when decreasing power? Having too much momentum? And is there much lag when going into reverse thrust for turboprops?

@BroadcasterDougSantelli

10 ай бұрын

No. Decreasing power is significantly a lot faster. Same goes with jet engines. You can feel the force a lot more when decreasing as well

@BroadcasterDougSantelli

10 ай бұрын

I’m not sure about reverse thrust because the PC-12 can land on really short runways so I’m gonna guess there’s not much of a delay

@NewSoloPilot

10 ай бұрын

@@BroadcasterDougSantelli thanks clears it up!

@BroadcasterDougSantelli

10 ай бұрын

@@NewSoloPilot you’re welcome. I’m not sure 100% I’m correct but at least when I fly in a jet versus a turbo prop, those are the difference I see/feel

We learn something new everyday 😊

Can't believe they are still building Kingairs!

I know nothing about planes but this was very interesting 😊

@jeffstepp-ou8re

9 ай бұрын

This isn't an airplane, it's a hovercraft.😅

@aimeem8156

9 ай бұрын

@@jeffstepp-ou8re either way I found it interesting. Guess I got confused when he literally said it was an airplane, and as I said I know nothing about planes. Cheers 🍻

@jeffstepp-ou8re

9 ай бұрын

@@aimeem8156 lol I was kidding, it's an airplane...don't feel bad my wife hates my sense of humor also, and wants to kill me on a daily basis..

@aimeem8156

9 ай бұрын

@@jeffstepp-ou8re oh I don’t hate you or want to kill you I’m sorry I thought you were serious. If it’s any consolation me and my partner are exactly the same, have a lovely day

Ahh, the dredded turbo lag!

Just listening to the prop revs you get the idea

I’ll remember that in my 98 Ford Explorer..

Sweet info

Nice mate

And that’s the bad ass part!

Same thing applies for when you transition to To Jet Engines such as a Lear Jet or 737

Never had that problem on the C441😁

The delay is kinda similar to turbo lag in cars but being in planes it works differently.

This is why you never pull the levers to idle on final. If you have to go around you will be on the back side of the power curve.

And just so you all know, there's also a delay when throttling back, as well.

It's spool up just like a jet engine. That's exactly what it is powering that propeller. In all turbine aircraft there is going to be a lag. Turbines in general need a minute to spool up.

Learned to fly turboprops in a T34C

Now i am qualified to fly tp. Sweet. 😂

Hmm, kinda like the chipper I use at work. About a four second delay as the blade spins up when you ramp up the rpm’s

Sort of like me in the morning. I push a button and there's a delay untill power reachs my pillow fluffer.

That's why I set my watch 3-4 seconds faster than UTC 😊

You in a Cessna Conquest? I always thought they had Garrett's not P&W

@mmayes9466

10 ай бұрын

Conquest I vs Conquest II. The former has PT6 engines.

Stay ahead of her bro.

@EvanLuft

9 ай бұрын

Yes sir!

Thanks man

I will use this next time i fly a turbo prop airplane

may want to watch out for that hangar

Stands to reason 😊

You need a “pedal commander”!

Fuel powers N1, N1 powers N2. Prop driven off N2. Have to wait for prop to catch up.... like my wife!

@macieksoft

9 ай бұрын

This is turboprop not a turbojet or turbofan. N1 and N2 are usually a turbojet or turbofan therms. In turboprops with a free turbine you have either NP and NG (for a single shaft gas generator) or NL, NH and NP (in case of dual shaft gas generator). Prop goes off NP (P stands for power turbine).

what's the shower curtain rails for? can you attach things like sun shades etc. like in the 737?

It's like the transition from crazy girlfriend to wife....

You also need to take a transition course. Generally 1-2 days. I did mine then flew with a instructor an additional 12 days for 2 hours a day. They're called Doctor killers for good reason and I wasn't about to add my ass to the totals.

Its better in high idle and on approach where the engines push through landing flap setting with a relatively high Gas turbine rpm. Not really a problem on go around or mid flight. This hard delay is only on ground and even worse in low idle

That reminds me of Jurassic park 3 takeoff lol

You've made me think about this a bunch and realized that a turboprop has even a worse lag time than a regular turbine because regular turbine has most of it Mass close to the Centerline where is the propeller has mass going out to the end of a much wider arm If you have ever sat in a spinning chair and moved your legs in and out it'll make a little more sense. I don't know the particulars of a turbine propeller transmission on a turboprop I don't know whether they decouple during that time or whether it's locked the whole process through

What plane do you fly? Your context is excellent, your explanations are valuable, and your flying is very smooth. I dreamed of being like you as a child; in MS Flight Sim 2000, my favorite plane had a twin turboprop.

@EvanLuft

2 ай бұрын

Thanks so much!!! I fly a Cessna conquest!

Love to fly with you!

This is true for any turbine engine, not just turbo props.

@EvanLuft

9 ай бұрын

yup! :)

@stevenhardy5414

9 ай бұрын

The Rolls Royce T56 is a single spool constant speed variable pitch turboprop. The power changes are nearly instantaneous. It's the only turboprop I've operated (not flown) that I believe is an exception.

Evan, do you have any on the TPE331