How SpaceX Is Upgrading Raptor To Be The Ultimate Rocket Engine!
Переглядів 620,151
День томуToday 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
--------------------------
Want to support what I do? Consider becoming a Patreon supporter for access to exclusive livestreams, our discord channel! - / everydayastronaut
And extra big thanks to our Mission Directors! Get your name in the credits by becoming a Mission Director on Patreon!
Mac Malkawi, Ole Mathias Aarseth Heggem, Tomdmay, TTTA, Max Haot, John Malkin, DLB, Héctor Ramos, David Glover, Simon Pilkington, Tristan Edwards, Arthur Carty, Frans de Wet, Chad Souter, Sam Fisher, Chris Dibbs, Seth Pascale, Manalope , Vincent Argiro, Taron Lexton, Corey Coddington, Tim Engle, Ares Lovlyn, David A. Greer, Robin Haerens, Mark Krieger, Roger Oldfield, Ruben Maier-Gerber, Vignan Velivela, Damian Borth, Scott Ferreira, Steven Hosac, Bravishma Narayan, Eric Johnson, Robert Maynard, Dakota Flemmer, John, Ryan Vandervoort,
Justin Hook, Barney, Gautham, Taylor Newton
Or become a UKposts member for some bonus perks as well! - / @everydayastronaut
The best place for all your space merch needs!
everydayastronaut.com/shop/
All music is original! Check out my album "Maximum Aerodynamic Pressure" anywhere you listen to music (Spotify, iTunes, Google Play, Amazon, etc) or click here for easy links - everydayastronaut.com/music
@malikbaptiste8034 Рік тому
Your ability to bring aero-spike engines into every conversation is astounding😂
@jonathanbush6197 Рік тому
Just like the mechanic who fixes my Cadillac! (Mad Magazine reference)
@GawainNYC Рік тому
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 Рік тому
Even with Elon Musk 😂
@actionjksn Рік тому
Aero Spike fanboy is what he is. What a sick puppy.
@Grandremone Рік тому
Getting rather sad now tbh
@ShubertReads Рік тому
Didn't we learn anything from Jurassic Park?! Breeding Raptors is dangerous!
@ShubertReads Рік тому
Raptor 1 was just a distraction for Raptor 2 to come out of the bushes and attack!! Clever Girl...
@Crusader1984 Рік тому
All the Raptors are female
@Jaggerrrr Рік тому
@@Crusader1984 life finds away… life finds a way.
@patricktho6546 Рік тому
@@Crusader1984 we just added a bit of frog...
@lightningwingdragon973 Рік тому
Clever girls
@Zeyervv Рік тому
2 everyday astronaut videos in 1 week? What a treat! Keep it up Tim!
@jonminer9891 Рік тому
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 Рік тому
Agree, agree, agree. Everyday Astronaut is an awesome channel
@Vespuchian Рік тому
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 Рік тому
@@Vespuchian hmm, you wouldn't be refering to that "other astronaut" would you, the guy who's always "angry"? Lol
@rubikmonat6589 Рік тому
@@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 Рік тому
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
@dmanagable Рік тому
No one on the Internet, let alone anywhere else on UKposts, explains rocket engines as well as you do. We are very lucky to have you explaining things to us, incredible video and incredible work!
@StanleyCreative Рік тому
Raptor 2 is so CLEAN! Izan Ramos' models are incredible.
@KenOtwell Рік тому
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 Рік тому
I'm inclined to agree. On the other hand, who knows what materials breakthrough could be on the horizon.
@UncleKennysPlace Рік тому
I work in the large fanjet development field. 5% improvement is nothing to sneeze at, 10% is gold!
@jackinthebox301 Рік тому
@@UncleKennysPlace I'm curious if AI optimizations have made it into your line of work?
@julianfp1952 Рік тому
@@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 Рік тому
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.
@KnightRanger38 Рік тому
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 Рік тому
I love your aerospike idea. Having a large ring with many smaller engines should allow for this!
@J7Handle Рік тому
Enough with the aerospikes. They're a bad idea through and through.
@caliperstorm8343 Рік тому
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 Рік тому
@@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 Рік тому
@@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.
@marsspacex6065 Рік тому
Man Spacex is leagues ahead of anyone.
@edwardrosier1805 Рік тому
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 Рік тому
Space Y
@element5377 Рік тому
saw it rise because the gate was left open
@romanwowk4269 Рік тому
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!
@alvianchoiriapriliansyah9882 Рік тому
I should also added that many parts were transferred to the vehicle, similar to jet engines, makes install & removal process easier
@ErikBongers Рік тому
And I believe, for the booster, some (starter-)parts are even moved to the launch mount!
@deanwoodward8026 Рік тому
@@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 Рік тому
@@ErikBongers stage 0, as SpaceX calls it.
@klantic2 Рік тому
Amazing work, Tim! Thanks so much for your time, effort, and attention to detail. And those renders are gorgeous! (Izan and Casper!)
@YousufAhmad0 Рік тому
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!
@yonnelourens638 Рік тому
Hi Tim, great video as always! Can you do a video explaining the navigation techniques and technologies for the landing of both stages
@phillipnicholson835 Рік тому
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 Рік тому
@@phillipnicholson835 do they need to improve falcon 9 landing tbh?
@donjones4719 Рік тому
@@phillipnicholson835 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.
@phillipnicholson835 Рік тому
@@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 Рік тому
@@phillipnicholson835 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
@TheGokki Рік тому
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"
@gazmobile Рік тому
Still hard to believe this is actually happening 😁
@NickGobin Рік тому
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 Рік тому
Agreed. The tyranny of the rocket equation in one slide.
@StovallsGarage Рік тому
Thank you so much for the work you put into these videos , the interviews and the research you put in is astonishing.
@FingonNZ Рік тому
Sensational video, and very easy to understand. A nice balance with the longer form as well. Well done!
@quinnmarsh Рік тому
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 Рік тому
Interested to create own rocket?
@robertherndon4351 Рік тому
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.
@andycanfixit Рік тому
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.
@IBB_ch Рік тому
Thank you for mentioning our igniters at 7:12 :-)
@johndoepker7126 Рік тому
Amazing content as always.....thanks Tim! 🤟
@chrisc1140 Рік тому
Those models of the engines are incredible! Especially getting the rats nest of piping on the Raptor 1!
@MrPinguinzz Рік тому
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
@MooThing Рік тому
Smashed it again Tim. Thank you so much for you and your team's work.
@mattkerle81 Рік тому
Keep it up mate, great work!
@lucianopiscopo4331 Рік тому
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.
@Kimballgoss Рік тому
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!
@depressedscrotum8781 Рік тому
so informative and concise. great job Tim.
@cball8315 Рік тому
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 UKposts) for the upcoming booster tests. Cannot wait to see it pop off at 1.5:1 ratio!
@cornbreadreturns296 Рік тому
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 Рік тому
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 Рік тому
@@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 Рік тому
@@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.
@helmit14 Рік тому
As it turns out, Raptor 2 produces more beautiful fireballs, too!
@gasdive Рік тому
I've been following space obsessively since I was 5 (Apollo 7). I still learnt stuff in this one. So great. Thanks.
@mikehenning1791 Рік тому
Great video Tim and great explanations keep up the great work 👍
@dinocr6783 Рік тому
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 Рік тому
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 Рік тому
Do you have a link to the video you are talking about?
@Hippida Рік тому
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 Рік тому
@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.
@Rubik43 Рік тому
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 Рік тому
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 Рік тому
@@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 Рік тому
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 Рік тому
@@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 Рік тому
Nuclear is the the way for humans to get to mars. The Only practical way on a large scale- either direst thermal or electric.
@7cle Рік тому
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.
@stephen_101 Рік тому
Incredible work as always Tim!
@jbarvideo12 Рік тому
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.
@CodingFortheRestOfUs-ii8hi 8 місяців тому
Can you do a video on Raptor 1/Raptor 2 vs. Raptor 3?
@HenryB51 Рік тому
Bravo Tim... Keep doing what you're doing !!!
@sirierieott5882 Рік тому
Solid straightforward and packed full of wonderful nerdy detail. Love it TIm.
@tk421dr Рік тому
i like how tim lists the pre reqs at the beginning of the video...wait is this a class? will there be a test?!?
@ArtofAvalon2 Рік тому
Curious to know how much of the Raptor 2 simplification was due to removing the R&D sensors from Raptor 1
@schonkat1982 Рік тому
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 Рік тому
@@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 Рік тому
@@aerospacer994 that sounds more plausible, thank you
@kstaxman2 Рік тому
You're only getting better and better.. thanks for all your hard work..
@danielajcote Рік тому
Great video! I love your explanations and the animated illustrations.
@TheNavalAviator Рік тому
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 Рік тому
airplanes can get over this "weight fatigue" no problem
@jeddjoseph237 Рік тому
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 Рік тому
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.
@IanValentine147 Рік тому
Loved it Tim. Thank you. Watched after the interview but still *perfect*
@teslahype Рік тому
Great job Tim and team. Thank you.
@evanw7867 Рік тому
They realized that if they remove torch ignitors from the main combustion chamber, they can just use the ground support equipment instead!
@markdickerson9439 Рік тому
no, how do you think they restart them in flight?
@dancingdog2790 Рік тому
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 Рік тому
I was talking about the ground equipment that ignited B7 the other day lol, but thanks for the mansplaining
@LucianAlexandruMotoc Рік тому
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".
@jaitanmartini1478 Рік тому
Bravo!! 👏👏 This is your best video yet Tim. Way to go!
@johnmanderson2060 Рік тому
Perfect 👌🏻Video, as usual 👍🏻 Thanks for your amazing work and dedication 👏🏻
@joman2055 Рік тому
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.
@richardteychenne3950 Рік тому
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 👍
@josephtigges5570 Рік тому
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!
@MilBard Рік тому
Tim, bravo for the concise & informative rocket science explanation. It is appreciated.
@worroSfOretsevraH Рік тому
Elon is not on your Patreon list..
@prawnmikus Рік тому
It'll be interesting to see how these advances may apply to nuclear rockets.
@bru512 Рік тому
Tim, thanks for the fantastic content and fair reporting!
@texhrider Рік тому
I agree ! They are just at the beginning of what they can do with Raptor 2. I really can't wait to see what all new improvements will happen in the next year. Thanks for the vids ! they're all great !!😊😊
@donjones4719 Рік тому
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 Рік тому
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 Рік тому
Not a factor. The test this week was a spin-up test; it was not planned to lead to ignition.
@mostevil1082 Рік тому
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 Рік тому
@@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 Рік тому
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?
@jackansi Рік тому
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 🤣
@nikkismith8750 11 місяців тому
Looking forward to a new video comparing Raptor v2 to v3 once more details are released
@sdebeaubien Рік тому
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.
@raxneff Рік тому
"It looks like it is incomplete" 😁 .... Elon Musk
@Mirimius Рік тому
What rocket engine is best for cleaning? A vacuum optimized one.
@DragonsAndDragons777 Рік тому
Aw man that's cheesey
@frankgulla2335 Рік тому
Tim, nice job explaining a very complicated machine and making clear the differences. Thank you.
@nickfosterxx Рік тому
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.
@bearlemley Рік тому
I wish Scott Manley was invited to be with Elon.
@santoshjackman Рік тому
Thanks! Great work man. Love your videos.
@GreenPartyHat Рік тому
This video really helped me understand how Raptor works. Thanks.
@SameBasicRiff Рік тому
watching all ur vids is like a full uni course I love it, thank you!!!!!
@indycinema Рік тому
I was hoping for a postmortem from that amazing interview series! Thanks Tim!
@kenhelmers2603 Рік тому
Was waiting for this! Thanks Tim :)
@skaro85 Рік тому
Great content. Cheers 😁👍
@N1gel Рік тому
Great chat Tim thanks. Every one is a gem.
@benetedmunds Рік тому
Loads of information. Many thanks, Tim!
@otseroeg Рік тому
Thank You, Tim! You're good at this. 👍
@jeebusk Рік тому
Thanks for following these topics and breaking it down.
@mp6756 Рік тому
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
@arnoldsmith5754 Рік тому
thanks for the updated info
@keithrange4457 Рік тому
Fantastic and informative video! Thank you Will Wheaton!
@rickfearn3663 Рік тому
Exceptional clarity. That is an art form.
@cball8315 Рік тому
This might be Tim's most under rated UKposts submission. He gets props on a lot of what he's done, but I would suggest that his insights in this video are above average
@arthurwagar88 Рік тому
Thanks for good stuff. There will always be improvements.
@mlit83 Рік тому
Thanks for your excellent coverage of space news!
@vonSmash Рік тому
fantastic video! And I really enjoy the new Full flow staged combustion cycle render that now has detailed inducer, impeller and turbine! They look great and give an even better overview of such an engine :))
@Texle Рік тому
Love these renders, another excellent video Tim
@thomasputko1080 Рік тому
Love your vids. Keep warm.
@Buju7777 Рік тому
thanks for this amazing video! and I think this is just the beginnin!
@WladyslawMotyka Рік тому
Great video Tim. Thanks a lot.
@hanbo123 Рік тому
Tim's waving hand never ceases to catch me off guard when I start his videos
@royaldust Рік тому
Thanks Tim! Hopefully the incident won’t be too big of a setback and we can see them in action soon
@kevinlarsen6260 Рік тому
Tim - Great video, as usual :) Thanks!!
@kaikeen Рік тому
As always, great video. Thank you much.
@aplelab4708 Рік тому
lets gooooo new vid love you tim you have brought me love to space flight and i am so thankful for that
Everyday Astronaut
Переглядів 1,5 млн
ABC7 News Bay Area
Переглядів 42 млн
ОВР Шоу
Переглядів 4,2 млн
Everyday Astronaut
Переглядів 2,1 млн
Топовый Wildberries
Переглядів 8 млн