How SpaceX Is Upgrading Raptor To Be The Ultimate Rocket Engine!
Ғылым және технология
Today we’re going to do a quick rundown on all the known changes we’ve seen with Raptor to date. We’ll go over their thrust and performance, how to spot the changes with their external designs, and talk about how we expect to see this engine continue to evolve.
If you’re more of a reader, here’s an article version of this video as well! - everydayastronaut.com/spacex-...
Timestamps:
00:00 - Intro
01:50 - Overview of Raptor
06:05 - The Differences
10:30 - Their Specifications
14:50 - The Future Of Raptor
--------------------------
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Пікірлер: 1 300
Didn't we learn anything from Jurassic Park?! Breeding Raptors is dangerous!
@ShubertReads
Жыл бұрын
Raptor 1 was just a distraction for Raptor 2 to come out of the bushes and attack!! Clever Girl...
@Crusader1984
Жыл бұрын
All the Raptors are female
@Jaggerrrr
Жыл бұрын
@@Crusader1984 life finds away… life finds a way.
@patricktho6546
Жыл бұрын
@@Crusader1984 we just added a bit of frog...
@lightningwingdragon973
Жыл бұрын
Clever girls
Your ability to bring aero-spike engines into every conversation is astounding😂
@jonathanbush6197
Жыл бұрын
Just like the mechanic who fixes my Cadillac! (Mad Magazine reference)
@GawainNYC
Жыл бұрын
Tim at the movies: "Haha! I love how Deadpool breaks the fourth wall! Not that there is a solid fourth wall... kind of like the missing side of a linear aero spike engine."
@sphinx2k210
Жыл бұрын
Even with Elon Musk 😂
@actionjksn
Жыл бұрын
Aero Spike fanboy is what he is. What a sick puppy.
@Grandremone
Жыл бұрын
Getting rather sad now tbh
2 everyday astronaut videos in 1 week? What a treat! Keep it up Tim!
Hi, Tim. I try to watch all the SpaceX-focused channels. I think yours is the best written. You have less speculation and grandstanding than some others. Your vids are packed with information that is timely and focused. Thanks for sharing! Stay healthy!
@mrpratster
Жыл бұрын
Agree, agree, agree. Everyday Astronaut is an awesome channel
@Vespuchian
Жыл бұрын
Agreed, the focus on what's actually happening and not speculating on grandiose future potentials is one of the best reasons to follow this channel over others covering the same subject. It's very grounded reporting, if you'll excuse the pun.
@JCStaling
Жыл бұрын
@@Vespuchian hmm, you wouldn't be refering to that "other astronaut" would you, the guy who's always "angry"? Lol
@rubikmonat6589
Жыл бұрын
@@JCStaling I quite enjoy the broad spectrum of content creators for the topic. We have bubbly, cranky, geeky, lofty, really a full 7dwarves suite of traits analysing in their own ways and sharing it with us.
@MrEmrys24
Жыл бұрын
what I love about Tim is he isn't just giving us the latest news about Space X, he also let us understand the technology itself and why it is important. as a nerd this is very important for me :D
Raptor 2 is so CLEAN! Izan Ramos' models are incredible.
No one on the Internet, let alone anywhere else on KZread, explains rocket engines as well as you do. We are very lucky to have you explaining things to us, incredible video and incredible work!
I suspect that Raptor 2 is much more mature than Merlin after a similar time spent refining the design. After all, this isn't their first Rodeo! So I'm thinking they may get another 20 to 30% improvement, but not double from their current design.
@jackinthebox301
Жыл бұрын
I'm inclined to agree. On the other hand, who knows what materials breakthrough could be on the horizon.
@UncleKennysPlace
Жыл бұрын
I work in the large fanjet development field. 5% improvement is nothing to sneeze at, 10% is gold!
@jackinthebox301
Жыл бұрын
@@UncleKennysPlace I'm curious if AI optimizations have made it into your line of work?
@julianfp1952
Жыл бұрын
@@jackinthebox301 It depends how you define AI of course, it’s such a widely used and often abused term, but if you take it as a computer algorithm designing parts as opposed to a human then in the aerospace industry an early example would be the Airbus A380 wing struts way back in the early 2000s that were “designed” (more like grown) using a software package called OptiStruct from Altair Engineering rather than a human engineer drafting them. Essentially the software is told the overall outer shape, the areas within that overall shape where material cannot go in order to allow wiring/hydraulics/etc to pass through, the properties of the material being used to construct the struts, and the force vectors that a particular strut will be required to carry (a vector having both magnitude and direction of course). The software then essentially “grows” the optimal structure that uses the minimum amount of material to meet all those constraints hence minimising overall weight. Altair Engineering uses the A380 as one of its main reference cases for OptiStruct but it has also been used widely for (arguably) less glamorous items such as radiator brackets in cars etc, essentially anything where minimising weight is an important consideration.
@witchdoctor6502
Жыл бұрын
It isn't their first rodeo building an engine, but Merlin and Raptor are 2 very different kinds of engines. After the first flights are complete, they will know how much they can push the engines. I don't think they will double it, but I will not be surprissed if they do either.
Tim, when you mentioned a 1:1 thrust to weight ratio, I was reminded of Astra's Rocket 3.3 LV0006 which had an engine failure moments after launch. The four remaining engines had enough thrust to keep the rocket flying, clearing the tower horizontally, but were unable to increase altitude until after some of the propellants had been consumed. I fully expect for the Raptor 2 of today to not be the final version of the Raptor, but there not be as large an increase in thrust as there has been between the first Merlin 1A and today's Merlin 1D. I can see a chance of the 33 Raptor 2s on the bottom of a Booster to function as a single extremely large aerospike engine.
@jonathanjanzen5231
Жыл бұрын
I love your aerospike idea. Having a large ring with many smaller engines should allow for this!
@J7Handle
Жыл бұрын
Enough with the aerospikes. They're a bad idea through and through.
@caliperstorm8343
Жыл бұрын
That aerospike idea sounds a lot like the one on the General Dynamics NEXUS booster. Not sure if Starship has enough room on the bottom for that, though. NEXUS had to be super wide and short to accommodate that design.
@carso1500
Жыл бұрын
@@J7Handle everything is a bad idea until someone proves it works, after that is a race from everyone else to catch up to the leader lets remember that 10 years ago everyone used to believe that reusable rockets where also a bad idea, imposible, a pipe dream or just smoke and hype from some rich guy without an enginering degree, and now lets look at the present hell there are still some people today who believe that reusable rockets arent any better than disposable ones
@J7Handle
Жыл бұрын
@@carso1500 Oh please, don't pull that whataboutism with me. Aerospikes aren't even remotely similar to reusable rocketry. Aerospikes, even just theoretically, have poorer performance than bell nozzles even when you solve all the other flaws. They are altitude compensating nozzles, meaning they can only outperform bell nozzles when they are used half of the time in thick atmosphere and half of the time in vacuum. That means they're pointless for Starship, as Starship spends all of its burn time in space and Booster spends almost all of its burn time in atmosphere. The aerospikes are only theoretically good for SSTOs, but as Falcon 9 and Starship have shown, those are also extremely crap. SSTOs spend more fuel to get several times dead weight to orbit and need several times more heatshielding (also extra dead weight) to get back down from orbit. Meanwhile, their only advantages over two-stage rockets are full-reusabilty (oops, Starship can do that anyway and do it better) and simplicity (oops, the massively complicated hybrid engines, heat shielding, and necessary weight savings make it far more complicated, actually). So aerospikes are useless precisely because they benefit only an already stupid idea. I could imagine aerospikes being useful for trying to get a rocket back from the surface of Venus, but then again, I can't imagine us bringing back _anything_ from the surface of Venus, and certainly not a rocket.
I think the best example of the TWR issue was the Astra (?) launch that traveled sideways after losing an engine until it burned enough propellent to get better than 1:1 at which point it started to gain altitude.
@jiehao9378
Жыл бұрын
Space Y
@element5377
Жыл бұрын
saw it rise because the gate was left open
I should also added that many parts were transferred to the vehicle, similar to jet engines, makes install & removal process easier
@ErikBongers
Жыл бұрын
And I believe, for the booster, some (starter-)parts are even moved to the launch mount!
@deanwoodward8026
Жыл бұрын
@@ErikBongers I believe for the outer ring- they only have to start up on launch; the inner ring of gymballing engines have to re-light for landing.
@gasdive
Жыл бұрын
@@ErikBongers stage 0, as SpaceX calls it.
Man Spacex is leagues ahead of anyone.
Tim, you and youtubers like you, are the future of journalism. I have no doubt you could be a rocket engineer (or lead a team of them) yet you have the ability to explain it to the masses. True journalism that is needed now more than ever. Thanks for your hard work!
Amazing work, Tim! Thanks so much for your time, effort, and attention to detail. And those renders are gorgeous! (Izan and Casper!)
Hi Tim, great video as always! Can you do a video explaining the navigation techniques and technologies for the landing of both stages
@PhillMagGamerDad
Жыл бұрын
I'm specifically interested in whether SpaceX is already implementing new techniques for improving landing accuracy on the Falcon 9 first stages in preparation for the massive accuracy required for the Starship booster and Starship to be caught by the catching arms on Mechazilla?
@insertnamehere786
Жыл бұрын
@@PhillMagGamerDad do they need to improve falcon 9 landing tbh?
@donjones4719
Жыл бұрын
@@PhillMagGamerDad This will be interesting to see. The Mechazilla catch is in a lot of ways easier than the drone ship landings. The latter is moving in 3 dimensions, especially vertically, and F9 has to make that precise hoverslam touchdown. Starship is dealing with a stationary target. Elon explained in another recent Tim interview that it will take several seconds to pass down thru the arms, so it has time to make adjustments. But it does have to place that huge ship with its inertial mass within tens of centimeters before the arms can close in.
@PhillMagGamerDad
Жыл бұрын
@@insertnamehere786, they don't. But if they're flying and landing Falcon almost on a weekly basis, doesn't it make sense to practise and fine tune your existing rocket to be as precise as will be necessary for Starship, and learn in the process without having to go through the fly-crash-improve-perfect model that SpaceX has been following?
@insertnamehere786
Жыл бұрын
@@PhillMagGamerDad fly, crash and repeat has proven to be an excellent way of doing it, rapid iteration and changes as they go have never fails spaceX as opposed to decades of behind close doors research and development wasting billions om God knows what. The proof Is in the pudding 🙃 ... if they unshackled spaceX then nasa would be left pissing into the wind
Great explanation of Gravity Drag and why Thrust to Weight Ratio is so important Tim! I was waiting for you to bust out an "area under the force time curve" but you actually explained it super well without going even that far 😃
@bru512
Жыл бұрын
Agreed. The tyranny of the rocket equation in one slide.
I would love a deep dive on sub cooling cryogenic propellants, pros, cons, how they keep them cold during fueling. Always been a mystery to me.
@Inceptionxg
Жыл бұрын
Interested to create own rocket?
@robertherndon4351
Жыл бұрын
They're reportedly cooled using a heat exchanger and liquid nitrogen. By pulling a vacuum on the liquid nitrogen, it boils and cools. You can see videos of this on youtube (and see solid nitrogen). The propellants are pumped into the rocket cold, and the bulk keeps it cold for a time. If the propellants sit too long, they warm up to their boiling points, and must be drained. As for the pros and cons, the pros are that colder propellants are denser, so more mass can be stored in the tanks. The cons are that the tanks aren't that well insulated, and the propellants warm up with time, so there's a limited wait-for-launch time once the rocket is fueled. Also, cold propellants are typically more viscous (thicker) and may put additional demands on pumps (both in the rocket and in the ground support equipment). Tank ullage/pressure control may be more difficult as well, as the propellants condense air/nitrogen/... ullage gasses in the tanks. There is also the requirement for heat exchangers and/or equipment in the GSE to cool the propellants well below their boiling points prior to rocket loading.
Been watching all your long form videos over the years. Brilliant effort, exceptional content, always. Thanks to all the contextual knowledge I've gained from all those videos over time, this engine comparison summary was perfectly short and sweet. But having said that, I think you did a brilliant job on making this video quite self contained, so it should appeal to both new and old audiences alike. Keep it up!
Love to see it's dimensions side by side with BE-4, it's nearly the same thrust now, but from the pics of I've seen it looks less than half the size. Pretty amazing. Can't wait to see Raptor 2 fly.
Thank you for mentioning our igniters at 7:12 :-)
12:50 i think there is no better visualization for gravity drag than the sideways launch from astra They literally had 1-1 thrust until fuel started to be consumed Basically all the energy was consumed to oppose gravity
Still hard to believe this is actually happening 😁
Those models of the engines are incredible! Especially getting the rats nest of piping on the Raptor 1!
Sensational video, and very easy to understand. A nice balance with the longer form as well. Well done!
Thank you so much for the work you put into these videos , the interviews and the research you put in is astonishing.
Tim, could you please do a cross section walk through of the Raptor v2 detailing what each part does (to the best of your knowledge of course). From tank to exhaust. I've seen one done before using a 3D cross section rendering of Raptor 1 but having your video with updated information and design would be pretty cool. Thanks and Iowa Rocks!
@patreekotime4578
Жыл бұрын
I dont think he can really do that yet because he actually doesnt know yet how Raptor 2 is ignited. We will probably learn a lot more about these engines after they are launched.
@markborkowski965
Жыл бұрын
Do you have a link to the video you are talking about?
@Hippida
Жыл бұрын
In the last Musk vid. with them talking about raptor engines. Elon said in pretty plain terms, he can't speak much about the inside of the engine, as not to disclose what make their "sauce" special
@aerospacer994
Жыл бұрын
@DinoCR , if you've seen a cross-section of the Raptor 1, you've seen all actual about the Raptor v2 (except its ignition method). The difference is only in secondary details.
I liked this production very well made and you use the word minus instead of negative which is how we say it in the UK. Also, you are not speaking too fast which means your information, is more digestible.
Solid straightforward and packed full of wonderful nerdy detail. Love it TIm.
so informative and concise. great job Tim.
Awesome Tim! The one thing this video didn't touch on though, that was in the interview with Elon (amazing BTW), was how they "inline" the oxygen pre-burner... which I thought was really interesting. What i mean is it's directly in line with the center of the engine bell... and how that impacted the transfer of force to the vehicle. Super cool, thanks for all you do!
@johndododoe1411
Жыл бұрын
Force transfer is always a direct line up the engine. What they did is to build the oxygen pump inside that force transfer rod, using it as the walls of that part.
@cornbreadreturns296
Жыл бұрын
@@johndododoe1411 Right! Exactly. I was interested in hearing a little more about that. Obviously, using the walls of the oxygen pre-burner as part of that is brilliant - has it ever been done before? Other advantages besides weight? Very cool nonetheless.
@ChildSpaceMethod
Жыл бұрын
@@cornbreadreturns296 Another advantage is that no torque is exerted by the liquid oxygen flow when the oxygen plumbing is coaxial with the engine. Oxygen accounts for about 80% of the fuel weight (approx 3.7:1 fuel ratio) so that is most of the propellant going straight down to the engines.
Great content, love how you break down complicated concepts into easy to understand, bite sized pieces. I couldn't wrap my head around why they would go for a lower ISP on R2, but your explanation helped a lot!
I’m from Iowa too and I deeply appreciate and enjoy your content. You should do a deep dive into all the COPVs of a rocket. Thank so much Tim!
I've been following space obsessively since I was 5 (Apollo 7). I still learnt stuff in this one. So great. Thanks.
As it turns out, Raptor 2 produces more beautiful fireballs, too!
Thanks Tim for your detailed, awesome engineering analysis, AND your interview with Elon. All of this is well appreciated. Can't wait till your next analysis of improvements in Raptor 2.
Great video! I love your explanations and the animated illustrations.
Smashed it again Tim. Thank you so much for you and your team's work.
Thrust is only important to escape Earth's gravity, having in mind the the Mars venture It's possible that in the future we'll see: -Less powerful Earth-Mars and orbit-Mars raptors but with a higher ISP and build rate, mainly for the second stage -Very powerfull ground-orbit raptors for the orbit fuel station starship.
@johndododoe1411
Жыл бұрын
From Earth orbit to Mars will be second stages only, no first stages and no first stage engines. Launch from Mars will use mostly the 3 atmospheric center engines of the second stage, just like last year's test flights, but benefitting from lower Mars gravity to actually reach Mars orbit.
@Rubik43
Жыл бұрын
@@johndododoe1411 Yeah sorry I was wrong, I meant the second stage. Anyway if you want to launch 1000 starships that don't need to escape from the earth's gravity, I think it makes sense to design raptors that are faster and cheaper to build than focus mainly on thrust. Also the difference between the raprot sea-level and vacuum is only the Nozzle ratio
@gasdive
Жыл бұрын
I'm actually surpised that SpaceX isn't exploring ion engines. They're the largest manufacturer of ion engines the world has ever seen, so they know a bit about it. I really expected an ion driven Earth-Mars Cycler in their plans.
@mars_12345
Жыл бұрын
@@gasdive they might have them planned, but "first things first". No need for a cycler when it has nothing to cycle between ;) But then it might just be that for the given weight it would take too much propellant, energy or engines, making it more complicated, expensive, etc. So I wouldn't expect them used on anything manned or time constrained.
@StevenBanks123
Жыл бұрын
Nuclear is the the way for humans to get to mars. The Only practical way on a large scale- either direst thermal or electric.
i like how tim lists the pre reqs at the beginning of the video...wait is this a class? will there be a test?!?
It's so refreshing to find someone who uses proper terms like "center of mass" instead of "center of gravity" and "meters" instead of "elbows"
You're only getting better and better.. thanks for all your hard work..
Curious to know how much of the Raptor 2 simplification was due to removing the R&D sensors from Raptor 1
@schonkat1982
Жыл бұрын
Yeah, the raptor 2 looks like raptor one. In fact, it looks like an unfinished raptor one. So, is it's different engine at all?
@aerospacer994
Жыл бұрын
@@schonkat1982 Imho, it's just a update with thrust increase and some improving in details. Raptor 1A or Raptor 1.1 would be more accurate. But it's improving probably obtained at a high price.
@schonkat1982
Жыл бұрын
@@aerospacer994 that sounds more plausible, thank you
15:08 It does make sense because indefinite reusability is probably impossible with rocket launch systems due to metal fatigue given the weight constraints. In the end they'll try to find the economic sweet spot between production cost savings and fuel savings. Maybe one day we'll see cheap expendable balloon drop tanks on a reusable engine section with a set of small more durable tanks for the suicide burn.
@kennethkho7165
Жыл бұрын
airplanes can get over this "weight fatigue" no problem
Incredible work as always Tim!
Bravo!! 👏👏 This is your best video yet Tim. Way to go!
Can you do a video on Raptor 1/Raptor 2 vs. Raptor 3?
They realized that if they remove torch ignitors from the main combustion chamber, they can just use the ground support equipment instead!
@markdickerson9439
Жыл бұрын
no, how do you think they restart them in flight?
@dancingdog2790
Жыл бұрын
That would only be the case for the outer ring of RBoost engines -- but the SH inner engines, and *all* *the* *Ship* *engines* need the ability to re-light, and they don't have main chamber igniters either.
@evanw7867
Жыл бұрын
I was talking about the ground equipment that ignited B7 the other day lol, but thanks for the mansplaining
I have really missed those videos! Super cool that you have startet making them again :D
This video really helped me understand how Raptor works. Thanks.
Can't wait to see the orbital launch! Also, regarding Raptor 2, I'm cautiously optimistic and I think in a few years SpaceX will create a "Raptor 2.5" or something, with nearly no "fiddly bits".
Thanks Tim, I felt I had understood everything in your interview with Elon. However your additional coverage with reference to some of your earlier videos throws even more light on what was covered and the benefits they are delivering. Excellent 👍
Fantastic and informative video! Thank you Will Wheaton!
Bravo Tim... Keep doing what you're doing !!!
I am so glad you do the video in metric and not the other unit of measure that we shall not mention, thank you.
@N1gel
Жыл бұрын
Its got nothing to do with using imperial or metric units. This is physics & engineering so its all in ISO units. Just that the ones you recognise happen to be the same in metric.
I am biased, but I would personally love you to go more into detail about additive manufacturing/3D printing and how this engine/the entire modern space industry likely would not exist without it.
Tim, nice job explaining a very complicated machine and making clear the differences. Thank you.
Thank you for what you do Tim. It's nice to see new videos coming out. We will all be right there with you (via KZread) for the upcoming booster tests. Cannot wait to see it pop off at 1.5:1 ratio!
It'll be interesting to see how these advances may apply to nuclear rockets.
I loved Musk's reaction to aerospike engines and the concept of boiling down more important variables into ISP. You can see he's working on a much grander scale than people who think those are important. It was great to see Musk try really hard to be interested and at the same time not hurt your feelings 🤣
Perfect 👌🏻Video, as usual 👍🏻 Thanks for your amazing work and dedication 👏🏻
The research, understanding and detailed explanations of such complex matters from someone who essentially learned on his own is admirable. I'm in awe. Bravo.
What rocket engine is best for cleaning? A vacuum optimized one.
@DragonsAndDragons777
Жыл бұрын
Aw man that's cheesey
Eliminating parts is great, but eliminating the main chamber igniters adds to making the start-up sequencing very complex. Was that a factor in the big propellant dump and big kaboom during testing this week? So, another great conversation with Elon. It's almost like we're all in a conversation with him, what you do is different than watching a conventional interview of him. How many days before your feet touched the ground after learning he watched your rocket engine video, and paid enough attention to note an error? :) (I understand your chagrin at the error; laborious research tripped up by a bad source that looked good at the time.)
@DouglasJMark
Жыл бұрын
My thought too. I love your calling it the "Kaboom". This reminds me of the Atari 2600 game called " Kaboom!" It was one of my favourites. (Yes, I'm old... and Canadian if you haven't figured that out yet :P
@EagerSpace
Жыл бұрын
Not a factor. The test this week was a spin-up test; it was not planned to lead to ignition.
@mostevil1082
Жыл бұрын
Presumably it's related to start up. Unsync'd startup of the two preburners means one of them gets a stoichiometric mix and burns far too hot, a shutdown to avoid that melting the engine could dump more unburned fuel than oxidiser. But the problems would all happen before the main chamber, removing igniters won't make any difference to the root cause. It may slightly mitigate this failure case slightly by igniting more of the fuel earlier but it's still not going to have enough O2 to burn inside the bell. You still get a fireball.
@donjones4719
Жыл бұрын
@@EagerSpace Understood. I was curious as to whether the amount of propellant flowed thru the engine during the spin-up was greater because of the start sequence. These things aren't always intuitive.
@gilbertanderson3456
Жыл бұрын
As Elon said, the startup is a dance. Precise valve timing coordination, flow ramp up rates and pressure spikes while crossfeeding the preburners with exact timing, fighting the flow restrictions and pressure drops associated with the autogenous pressurization system, operational restrictions required to avoid cavitation. They all mean the startup can't be faked with test procedures. The only way forward is to run their best model through actual operational conditions and that means putting methane and oxygen out the bottom. Booms happen. They wish it had been a windier day, no boom. Next time they will schedule for a higher wind. Maybe test in subsets, center thirteen, odd outer ring, even outer ring?
Tim, thanks for the fantastic content and fair reporting!
Very good video! Keep it up it is such a good chanell wich helps so much people understand rocketsience. Tanks Tim
"It looks like it is incomplete" 😁 .... Elon Musk
Elon is not on your Patreon list..
Tim - Great video, as usual :) Thanks!!
Congratulations on this (and many) podcast. 3:19 I’m proud of my neighbor from the Falls portion of the Cedar river from the Rapids section. In Rochester MN now. What a honor for you.
I wish Scott Manley was invited to be with Elon.
Amazing content as always.....thanks Tim! 🤟
Those shirts are really awesome! And, as always, I binge watch every single video of yours. Great stuff!
Great video Tim and great explanations keep up the great work 👍
Great script thank you (plus a cool shirt). Good to see all your earlier hard work paying off as it all comes together. I *cannot believe* it's been three years already since your King of Engines video. And holy crap I just checked your subscriber count.
Thanks! Great work man. Love your videos.
Loads of information. Many thanks, Tim!
Thanks Tim! Another excellent analysis. I didn't realize there was already a Raptor 1.5 version in there. So, we're basically on the 3rd iteration then, with other prototypes having been tested with chamber pressure up to 330 BAR. I think they'll reach a production version of Raptor that hits that, when those other improvements get made that are required to support it. You're really making this stuff accessible to the masses, and challenging the next generation to get on board with this stuff, and ride along with some of these new ideas.
Wow, great quality content and easy to understand
Great job Tim and team. Thank you.
watching all ur vids is like a full uni course I love it, thank you!!!!!
thanks for the updated info
I was hoping for a postmortem from that amazing interview series! Thanks Tim!
Thanks for all you do to make rocket science digestible for the masses. I watched this video when you released it but I couldn't help myself from watching it again. You are an amazing guy thanks
Great content Tim, thanks.
Tim, bravo for the concise & informative rocket science explanation. It is appreciated.
Thanks for following these topics and breaking it down.
Exceptional clarity. That is an art form.
As always, great video. Thank you much.
Thanks for your excellent coverage of space news!
Keep it up mate, great work!
Hi this is abvery interesting video. I didnt know anything about this before. I like that part saying you said: "The best part is No part", that talks about making things simple
Hi, Tim. Great job, as usual !
Thanks for good stuff. There will always be improvements.
Thank You, Tim! You're good at this. 👍
great explanation, straight to the point and no bla bla
thanks for this amazing video! and I think this is just the beginnin!
Another Excelent job Tim!
Thanks Tim, appreciate you.
Looking forward to a new video comparing Raptor v2 to v3 once more details are released
Fantastic explanation Thank you
Love these renders, another excellent video Tim