Rocket engine cycles: How do you power a rocket engine?

День тому

Rocket engines are incredibly complex machines, pushing the boundaries of material science and human ingenuity. And there’s a wide range of ways you can actually power a rocket engine and make it work.
They can be super simple, like just opening the valves of a tank under high pressure to having complex pumps arranged in a fashion so confusing it’s a miracle anyone ever figured out how to build them in the first place.
So today we’re going to talk about cold gas, pressure fed, electric pump fed, open cycle, closed cycle, full flow staged combustion, tap off and expander cycles. We’ll go over their pros and cons and lots of fun examples of each one!
Check out our article version of this video too for sources and links! - everydayastronaut.com/rocket-...
00:00 - Intro
02:55 - Basics Of Rocket Engines
05:35 - Cold Gas Thrusters
10:25 - Monopropellant Pressure Fed
14:15 - Bipropellant Pressure Fed
17:45 - Electric Pump Fed
21:05 - Open Cycle
25:40 - Closed Cycle [Ox Rich]
31:15 - Closed Cycle [Fuel Rich]
35:25 - Full Flow Staged Combustion
44:25 - Tap-Off Cycle
46:45 - Expander Cycle
52:20 - Summary
--------------------------
Want to support what I do? Consider becoming a Patreon supporter for access to exclusive livestreams, our discord channel and subreddit! - / everydayastronaut
Or become a UKposts member for some bonus perks as well! - ukposts.info/the/6uK.html...
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

КОМЕНТАРІ: 1 900

@ardag1439 2 роки тому

I think we forgot about the cycle where you rupture the propellant tanks and use the whole vehicle and its surroundings as the combustion chamber.

@ryanthompson7884 2 роки тому

clearly the best

@saadusmani7846 2 роки тому

From what I heard, this type of cycle is called RUD (Rapid Unscheduled Disassembly) Starship SN10 used this to make a reflight in under 10 minutes after landing! Now that's an impressive turnaround time.

@ArodWinterbornSteed 2 роки тому

I don't think you understand the concept of a 'chamber'

@ShuttleEnjoyer 2 роки тому

The full flow “KSP” cycle

@letsgocamping88 2 роки тому

what about the one where you throw bits of engine out the back?

@PracticalEngineeringChannel 2 роки тому

Masterclass in breaking down a complicated topic. Great job to you and your team!

@logank444 2 роки тому

Hey my favorite engineer commenting on my favorite rocket scientist. How sexy

@samkachar 2 роки тому

So great seeing you here. Love your content as well. Not surprised to see current and future engineers here.

@jeffreyhill1011 2 роки тому

Number 1 dirt content creator on the interwebs!

@fish2468 2 роки тому

@@logank444 my thought too pure hundred percent *S3XY*

@oldjimlxi5586 2 роки тому

@@samkachar ❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤

@sockpuppety 2 роки тому

honestly your content is beginning to feel more and more like curriculum as it gets fleshed out and cross referenced. very few people would have the stones to go into as much detail as you have done. thank you for caring about getting it right. you are a researcher and presenter of quality sir.

@itzzitzz 2 роки тому

I thinks he's teaching actual rocket engineers

@ASJC27 2 роки тому

@@itzzitzz No

@SoumilSahu 2 роки тому

@@itzzitzz Nope, it's amazing content, but it's mostly surface level. It's just right to get you excited to delve deeper if you want, but its not gonna help you make a rocket engine. Like he claims, the purpose of Tim's channel is to bring space down to earth for everyday people..

@KevinTheCaravanner 2 роки тому

We use “rocket science” as a term to indicate something is extremely complex. And it is, but you present it so well that I understand it. You’re a legend Tim.

@Muuip 2 роки тому

Exactly! I totally agree!👍 Thanks to Professor Tim and team.👍

@warrengans1346 2 роки тому

This is only one part of it: staging, orbital mechanics...

@KALLEFUCKINGANKA 2 роки тому

Rocket science is really simple, throw hot stuff out really fast in one direction and go the other. Rocket ENGINEERING however, now thats complex!

@Titter2 Рік тому

I understand just enough to know why I don't understand it...and that's all I can ask for.

@VeggiePower303 Рік тому

Rocket science is NOT complicated. As you can see it's all very simple. If you look into the operations of a Modern Super-Turboed Diesel engine in depth. You will see it has more moving parts hence it is more complicated.

@TechNextLetsGo 2 роки тому

I learned more about rocket science in the last 30 minutes than I have in 5 years, wow dude. You are good at teaching this.

@jamesengland7461 2 роки тому

A "like" is a given; a comment is grossly inadequate to convey my gratitude for the stellar work you do!

@roelende9670 2 роки тому

same

@koomaj 2 роки тому

I'm still amazed this level of content is totally free for everyone to watch. Thank you Professor Tim!

@Lpabmendez 2 роки тому

Free? I had to sit through several advertisements

@koomaj 2 роки тому

@@Lpabmendez Wathcing advertisements is also free, unless you was convinced to buy something =)

@screenname1 2 роки тому

I suspect that it's funded.

@spacecowboy5274 2 роки тому

i have a question 8:50 over here how will the gas turn into a liquid??

@MasterMe1984 2 роки тому

@@spacecowboy5274 I think if the gas is losing pressure it's loosing heat, so it turns back to a liquid.

@acanuck1679 2 роки тому

This, Tim Dodd, was a tour-du-force. Your attention to detail and the effort you put into ensuring that we (your loyal audience) actually understand what you are trying to explain to us was obvious. This video was a really good primer about rocket engines and the diverse choices that engineers and designers can make when trying to "build a better mouse trap". Thank you.

@DonDegow 2 роки тому

This video helped me a lot, gradually increasing the complexity is what made me understand, thank you!

@snuffeldjuret 2 роки тому

indeed very well put together!

@robertgraham6481 2 роки тому

This is a masterpiece. Structure, flow, pacing, diagrams, animations, clips all spot on. Thank you very much.

@screenname1 2 роки тому

You react with such enthusiasm because you think it's a solo effort.

@flybeep1661 Рік тому

Lol, "masterpiece", dude get a handle on yourself. Exagerated BS, it's a nice vid, nothing more.

@jasoncy31 Рік тому

I'm overwhelmed at how good this was, Tim. At first I thought "well, this is obviously a setup for a paid curriculum/class". Can't believe that you offer this for free to the world. You're doing an important service to space and science education and should be proud of what you've accomplished. Well done, sir.

@TheDerpsKast 2 роки тому

I've been following you for years Tim. Since before Boca Chica, and even since before Starhopper took it's first hop. I'm consistently amazed by not only the understanding you've garnered regarding these incredibly complex topics, but the simplicity with which you explain them. I've always loved space and spaceflight, but you were the catalyst for much of my understanding of its nuance. For that, I cannot thank you enough.

@f205v 2 роки тому

Tim, the nerdier you get on mathematics and physics, the more enjoyable your videos are!

@FureyinHD 2 роки тому

I'm an aircraft engineer and I've learnt so much from you about rockets. You're like an old fashioned engineering teacher who's not afraid to challenge students with depth information. Thanks, Tim!

@zuthalsoraniz6764 2 роки тому

16:00 There were some other (never flown) rocket designs that planned to reach orbit with just pressure-fed engines, like the German company OTRAG's design of a cluster of a huge number of mass-produced cheap rocket modules, and the Sea Dragon that planned to get past the mass ratio issues of being pressure fed with simple brute force of being absolutely huge.

@UNSCPILOT 2 роки тому

Love the Seadragon design, such a monster of a rocket made of steel and brute force, it's a shame it never got a chance.

@tarunantony1866 Рік тому

Otrag would have had such complicated aerodynamics

@danielhermanus6909 2 роки тому

I LOVE how this video works from the bottom up - from just opening a valve, where the recoil pushes back (which everybody knows and understands) to what if you do X Y and/or Z to improve. This is literally how engine development advanced, so it makes sense to teach it this way.

@martinstedtler 2 роки тому

Can you make a video about the structural engineering of rockets? I am always amazed how they transmit hundreds or even thousands of tons of thrust into the chassis, without everything just getting crushed^^

@Paragon643 2 роки тому

The way they manage to do that is basically just pressure. Just like how you can stand on a closed full soda can without a problem but when it's empty and doesn't have pressure inside it will crumble under the load. If you have a thin wall tube that you put under a load it will want to move and deform. But if you cap it off and put some pressure into it, the pressure inside will will push against the tube walls and spread out the load across the whole thing and actively fight against it changing shape since that would require the gass to compress even further. I't like how the more you blow up a balloon the harder the outside of the balloon feels.

@rileyjordan9072 2 роки тому

agreed. more to rockets than engines

@allanshookphoto 2 роки тому

Yes, I have asked for this topic before. The mechanical engineering doesn't get nearly as much attention as the chemistry. All that expanding gas pushing on the diverging surfaces of the nozzle, and the injector plate, and then up through the... um, how does it all not blow itself apart and crush itself? The entire weight of the vehicle balancing on the tiny surfaces of the thrust bearings! The mechanical engineering is insane.

@theOrionsarms 2 роки тому

It's all about the choosing the right shapes (and materials too) , for example a cylinder is very strong for axial forces, and a nozzle bell have the same shape and strength as a cathedral dome.

@saadusmani7846 2 роки тому

@@Paragon643 This could probably make for a short, but this definiely cannot be a full video

@The_Dark_Lord-69 2 роки тому

I like how you took us from a simple party balloon to Raptor 2 engine. Thank you very much. No lecture would be able to understand those basic concepts as fast as you did.

@Tech_Planet 2 роки тому

Excellent video about different types of rocket engines!

@yagwaw 2 роки тому

Absolutely magnificent! I thought I already had a pretty good idea of cycle types, but still learned a lot. Each time a question arose in my head, you did immediately address it in the next sentence or so.

@websitemartian 20 днів тому

could you explain the difference between the rocket engines used on planes/jets versus these? and why wouldn't raptor be used for jets ?

@Oatmilk123 2 роки тому

Hey Tim, recently my team and I placed top 3 in a national aerospace highschool competition called StellarXplorers. I think it’s partly because of you that we succeeded with your immensely informational content. Keep up the great work! :)

@idleeric8556 2 роки тому

👍🚀😎

@valentinmoeller 2 роки тому

That was a great video! Thank you!

@ThatGameGuyy 2 роки тому

wow. just wow. As an aerospace student I can attest to the succinctness and grace through which you've distilled weeks worth of my laboring over textbooks into a single, engaging, digestible, hour. I recently had an art history major friend school me on soviet rocket history.. ART HISTORY MAJOR. You truly are bringing space down to earth for everyday people. Thanks Tim, your impact will be profound.

@JayAntoney 2 роки тому

Quite seriously - I have no idea how you do these videos. They are by far the easiest to understand and most information packed videos I watch. Hats off to you dude

@brunoyuitinascimento3239 2 роки тому

As a aerospace engineering student I'm happy to see many of this videos, they help a lot to study some subjects. Thanks 💚💚

@frosty-5727 2 роки тому

Br? Faz em que facul?

@brunoyuitinascimento3239 2 роки тому

@@frosty-5727 ufabc

@kellyfarrell1646 2 роки тому

The production quality on this channel is amazing! I think one day we will have variable expansion ratio combustion chambers and this will solve many issues like throttle ability, although of course, it’s anyone’s guess how material science and technology will evolve. Nevertheless this channel always sparks my creative mind and I appreciate the content.

@timster5 2 роки тому

I know we don't get videos quite as often these days, but it's pretty obvious why. This is clearly years of research and knowledge condensed into less than an hour and I just want to say thank you for that. Thank you too your editors for the excellent animations and graphics. And although I'm not a channel member, I want to say thank you to everybody that can support you monetarily. Tim you're an absolute legend.

@rorygudka2474 2 роки тому

This is my new favorite video! The level of detail was exactly what I was looking for to understand the different engine types, and the graphics were amazing at helping visualize it all. Thanks for the incredible work!

@mrboredj 2 роки тому

This is the first video which really gave me an intuitive feel for how the different cycles work, rather than just kinda understanding it academically. Really awesome.

@sergeyanikin8326 2 роки тому

Amazing, definitely your best video to date! Can't believe it was almost an hour. Thanks to all people involved in producing and reviewing the content for the hard work that made it so easy to watch, understand and enoy!

@zavevu 2 роки тому

The only problem is what will happen after the videos will reach perfection. They are definitely very very close. Let's see what Tim does then.

@dzjad 2 роки тому

My kids (9 and 11) loved this. We had a great time pausing and talking it through.

@Flowrazornapalm 8 місяців тому

Coming back to this after a year. We definately need a video about the exotics, like SRB's, xenon/ion and nuclear

@maximilianseifert5486 2 роки тому

This is such an amazing video. Thanks for all the hard work that you do Tim. Can't wait for the next Starbase tour!

@danrocketfan9606 2 роки тому

I love you teaching videos. Definitely brings space down to earth for us everyday people!

@kevenbair7878 2 роки тому

I’ve been a Florida resident for 20 plus years but had never been to the visitor center, went yesterday! and this video is the perfect thing to watch after! Your the best dude!

@nightfox6738 2 роки тому

Tim I love the way you present mathematical equations. Most people just show the letters/symbols representing each term and tell you what it represents once, it's so helpful how every time you show the equation the labels are always there as a reminder. And your graphic design for it is so elegant. Great work as always!

@GeorgeCrawley 2 роки тому

Tim, just imagine if Elon sent you up to the ISS on an Axiom mission with a film crew. Picture the sense of adventure you would bring to all of us sitting in our living rooms throughout the entire training and mission, every nuance and appreciation of the experience highlighted which others might have just taken for granted. Elon's over-arching goal of making people be excited to get up in the morning needs to be transmitted to the masses. It's not enough to achieve it, it needs to be documented as it unfolds. More so than just a standard biography, Elon needs someone to document the sheer breathtaking experience of how he has already brought our optimistic science fiction future into today's reality. Noone would do it better than you. I've been following your work since the start, so much so that you have made me a fan of all things Space. Your videos are always engaging, and the progress you've made over the years in quality is excellent - the epitome of Elon's iterative design philosophy. Your success in outreach has brought the dream of space travel to all the little would-be engineers and scientists the world over.

@SuperSMT 2 роки тому

If anyone deserves a seat on Dear Moon, it's tim!

@Usrthsbcufeh 2 роки тому

why tf u writing fan fics lmaooo

@nickhowatson4745 Рік тому

@@Usrthsbcufeh well now Tim is actually going to the moon so its even better than going to the ISS and not really fan fiction anymore. hes been chosen as one of the crew members for the DearMoon mission which is going to orbit the moon and is launching in the end of next year 2023

@Usrthsbcufeh Рік тому

@@nickhowatson4745 but I’ll set a reminder for end of next year to see if u deleted ur comment lmaoo

@JaySmith91 2 роки тому

I really liked how the equations were presented around 39:00. Including the variables in one color and their definitions immediately to the right in small text. Genius! I might start doing that whenever the situation calls.

@FlorianBinsker 2 роки тому

It's a great presentation except for the equation being wrong in terms of units.

@davidgermain 2 роки тому

Rocket engines are the coolest thing ever. At 45 years old I still get giddy at close up shot of rocket engines doing there thing. They truly are amazing things.

@rhysdemazure4533 2 роки тому

I just noticed I've designed many tap-off engines, without even knowing it, thought it was a closed cycle. Great video! 👍

@StealthParrot 2 роки тому

Another amazing educational and fascinating video. The graphics are superb and really help simplify and visualize these extremely complex engine systems. Thanks Tim.

@thinfourth 2 роки тому

Can you imagine the horror of discovery channel doing this

@SimonGould1024 2 роки тому

Loving all these videos about how to get into space but would love to see some in-depth vids on once you are in space. Things like getting rid of excess heat, potential ways of artificial gravity, power sources for long durations, water/waste recycling, exercising, etc. Thanks.

@darionz 2 роки тому

Again, the inspiration to continue my studies brought upon by this amazing channel is greatly appreciated! Thanks Tim and the team that made this video possible! 10/10

@dharmasrisilva5997 2 роки тому

Tim thank you so much for putting up that animated diagram of the ox-rich turbopump at @29:04 instead of just the basic diagram like in your raptor engine video... it really helped me to understand it further.

@niclewis7268 2 роки тому

The year is 2067, the first warp engines are being tested in humanities pursuit to other stars, and Tim Dodd explains exactly how it works as simply as 2+2

@pluto8404 2 роки тому

_how to program a warp engine with 3 lines of python_

@alwynwatson6119 2 роки тому

And in 2026 how the fuel cell powered cryogenic superconducting combined radial and axial flux electric motor fed rocket engines work.

@-danR 2 роки тому

Or why it won't work. But first comes: "Why spin-launch won't work."

@isaytheenay5961 2 роки тому

1 minute out, and already 49 comments. Wow Tim, You've come a long way. And we've been here for the ride from the beginning. Thank you for leading us all on this wild journey!

@alanrogers7090 2 роки тому

Thanks, Tim. You've cleared up some questions that I had floating around in my mind, though you've also opened some new "tracks" for my "train of thoughts" to pursue. As always, you are clear in your explanations and the animations really help as well.

@faisolk 2 роки тому

Thank you for this video I've been lost in the last couple of days looking for how rocket engines are fed fuel and this really made it clear, i can't wait to know how rocket engines are started.

@Effectlife 2 роки тому

The production on these videos is once again insane. I just watched a video of almost an hour, and I didn't notice time passing by this quickly. I felt like the video only just started. Well done, Tim & Team!

@calebj1145 2 роки тому

High quality, accurate, intelligent content in an accessible format. Exactly what I've come to expect from this channel!

@tekitrash 2 роки тому

Honestly, I really just like hearing you talk and explain things. Your pacing is really good, your accent is pleasant and your content is compact and concise while not being devoid of your own opinions or anecdotes that are interesting. Thanks for the great work Tim!

@blenkiron1795 2 роки тому

Such a great video, as always of course! I love the way you start with the simplest cycle types instead of the complex ones, it really helps me understand and grasp why these engines are designed the way that they are, and why all that complexity is necessary. I also like how you discuss WHY some cycles are used instead of others: it is often overlooked in videos explaining specific cycles.

@Mexican_Robobot42 2 роки тому

As always, thank you for a well-made video! You deserve all the support you receive and I’m happy for you on the point you’ve reached right now!

@leeroychang 2 роки тому

Much Love Tim. Looking forward to getting through this! Thank you!

@TimbavatiLion 2 роки тому

Wow, i finally understood the different cycle types. And it gets a bit more obvious why the Raptor Engine is supposed to be so robust and maintenance-easy with the preburners running so cool.

@FilAmStargazer 2 роки тому

EXCELLENT work. Really filled in the gaps that were in the orginal Raptor video. Nice emphasis on how the flow in the pre-burner doesn't go backwards and using that as a way to tie the discussions together

@jackmiller505 2 роки тому

One of your best yet, Tim. Awesome job working us up to more complexity!

@brettpatching 2 роки тому

This was wonderful Tim and Team!! Definitely bringing this level of complexity down to earth for everyday people.

@danielallington5152 Рік тому

Tim, you have done it again. You have paid it forward so well that it really shows I am able to understand so much better after you given your explanations, than anyone else that does deep dives on space.. I always come away not only with a greater understanding of the subject, but with also a greater respect for what and how you do it. Hats off to you!

@geist96 2 роки тому

gotta say thanks again Tim. you got me hooked on these rocket videos and starship back in the day. And i have been following it all and watching as much as i can ever since. its really great to see the growth of it all and learn a little bit of how it all works.

@patrickgottschald1226 2 роки тому

OMG! Thank you Tim! Again one these very well done videos. And you still increased quality. Amazing, loved watching. I’m just sorry I can only 👍 it once. Looking forward to the next. Maybe electric engines like VSIMR or Hall thrusters.

@NickGobin 2 роки тому

Great graphics as always Tim! I particularly enjoyed the review of the simple (pressure fed) and really exotic engines (expander and tap off). And now I am really really looking forward to the episode on starting a rocket engine!

@kenyanroots 2 роки тому

Videos like this are why I think video sharing like UKposts is one of the greatest gifts of the internet age. Thank you.

@raegune 2 роки тому

Wonderful explanations of complex concepts. The fact that you can make this topic digestible in the way you have fully demonstrates that your tagline of "bringing space down to earth for everyday people" isn't just lip-service. Thanks so much for doing what you do!

@janedoe9940 2 роки тому

Fantastic video, Tim! I agree, it's your best video in terms of clarity and animations. I am able to follow it on 2x, which means it's incredibly well made. Congratulations! Now, I think we're all waiting for the "How to start a rocket" video :)

@jonaspiccinotti5916 2 роки тому

❤️ Tim you are like most useful and entertaining civil servant considering how much knowledge you spread for free! You are the best

@Rune2242 Рік тому

Can't stop thinking about sequential turbo setups when watching the open cycle chapter. It functions almost exactly the same! Using a smaller rocket to power the turbine shaft of a larger rocket in order to produce more pressure on its way to the combustion chamber! Same idea as using a smaller, quickly spooling turbo to spin the compressor turbine of a larger turbo in order to send more pressure to a combustion chamber. Engineering is beautiful.

@dare2dan 2 роки тому

Great explanations and animations! Thanks Tim! I've been interested in rockets for years, but this is the first time I felt like I really understand the different cycle types.

@sean_silvers 2 роки тому

The day has finally arrived!!! Thank you Tim! ❤

@iwayini 2 роки тому

Hey Tim, thanks for taking the time to make this video. Absolutely brilliant and great follow on from the Russian engine video. Keep up the great work of bringing space exploration down to a level we can all understand. I have learnt loads which in turn has upped my interest in rockets. Greetings from the UK.

@colvingoree 2 роки тому

Thanks, excellent job of keeping the flow going while not completely blowing up my brain. I had to back up a few times, but each step adds up nicely.

@morkovija Рік тому

I love the density of information in this one. Basically a book condensed into a 55 minute goodness

@schlenbea 2 роки тому

Thanks Tim! This was so helpful and really cleared up a lot of questions I had! Can't wait for how to start a rocket engine!

@codymills2393 2 роки тому

Outstanding work as always Tim! I definitely had to rewind quite a few times so that my small brain could absorb what you were saying but you really did make it understandable!

@jujenho 2 роки тому

Tim, your dedication is making many of your viewers amateur “rocket scientists”. I am old enough to have witnessed fhe space race since the beggining as a teenager, and been fortunate to have built a considerable first-class technical library on the subject. But I never stop being surprised to having learned something in all of your videos. Keep it up, there is more to learn.

@starrynayt 2 роки тому

I saw 55 minutes and I thought this is too long but here I am smiling as I've learned something new about rockets. Thank you, Tim!

@delh1415 2 роки тому

Awesome, thanks for the incredibly well explained and well presented lesson on how rocket engines work, I will have to watch this several times to cement in some of the concepts :)

@joh5417 2 роки тому

Was soo excited. But still can't wait for the whole starbase interview. Thank you for the great work!!!

@munindramohanta2584 2 роки тому

wow, finished a 1 hr video in 2 hrs!! but boy do you learn a lot!!! This can easily be a Netflix special for geeks or on discovery +.I can only imagine the amount of research this needs!!

@Pamudder 2 роки тому

Thank you for this video. I have always found the turbopumps to be the most intrinsically interesting parts of a rocket engine and it is always great to learn more.

@aidanwansbrough7495 2 роки тому

This was incredibly well explained!! Thank you!

@saadusmani7846 2 роки тому

As always, this video is well-informed and well-explained. Keep up the good work!👍

@gallomimia7780 Місяць тому

I thought I knew a fair amount about rocketry, but this video shed a lot of light on how much I didn't know that I knew. Thanks, as it was very rich in information and rather light on oxidizing the brain cells.

@hangie65 2 роки тому

Excellent explainer of what is a very complicated subject. You did a bang up job not only of laying out the different type rockets engines, but also of conveying the advantages and disadvantages of each type of engines into accessible and understandable sections. Well done and keep up the great job!

@jukkiivi4282 4 місяці тому

@EverydayAstronaut you didn't specify which orbit. Lunar Module Ascent Engine was pressure fed and it got Ascent Module on lunar orbit. It even managed it as a single stage to orbit.

@roguevoid5214 2 роки тому

This is such an awesome video Tim! Really appreciate all the efforts that you and your team put into this video, you're definitely bringing space down to earth for everyday people! Btw, I would love to watch an everyday astronaut video comparing JWST and Hubble.

@enriquesnetwork 2 роки тому

Took me 2 days to finish the video and understand everything well. We really appreciate you Tim making these videos for all! thanks!

@ashwindoraiswamy1721 Рік тому

I wanted to refresh my memory on cycle types and watched this video. I think this is the best explanation I've ever seen!

@razorreaper8440 2 роки тому

This is great content for the space & rocket nerd in me for years now... and still counting. Keep up the good work 👏 👍 @ Tim

@sniperdude21 2 роки тому

Thank you so much Tim for bringing us these moments! History in the making and I super appreciate your intense understanding with Elon. Amazing work, please keep it up! 👏

@jimwray8621 Рік тому

I was beginning to worry that you wouldn't talk about the RL-10. If memory serves (and I'm 84 now so who knows) the RL-10 used a bootstrap start where the liquid hydrogen was used to "prime" the engine such that when it was needed to actually ignite and provide thrust, a frangible disk valve was pierced. The liquid hydrogen immediately flashed to gas which then "powered" the turbo pump to pump the lox and more hydrogen into the engine. When the correct condition was achieved the engine was lit and the process continued until engine was shut down. Obviously an oversimplification but should begin to illustrate the RL-10's somewhat novel design. One of my earliest jobs was working as an instrumentation tech for Pratt&Whitney on the RL-10 at their Everglades facility and always thought that the RL-10 was a work of art...

@lukkylind 2 роки тому

Thanks Tim! It’s amazing how well you explain a complex engineering problem for regular people! You should consider creating a print with the schematics of each type of engine! I would love to put that in my office next to my Soviet rocket schematic print.

@stephenmorrow5069 2 роки тому

Your hydrogen is undense has made my rocket explanations at work more memorable. People remember that because it comes off awkward and people remember that. I am doing what I can to bring space down for everyday people too with the stuff I learn from you and Scott Manley.

@chrisfletcher8140 2 роки тому

I loved the vid, definitely back to what I love from your content. ❤🎉 Q: can you delve into the metallurgy aspects of rocket engines?

@f205v 2 роки тому

THIS!

@EverydayAstronaut 2 роки тому

I might be able to some day but a lot of that is closely guarded secrets unfortunately 😕

@chrisfletcher8140 2 роки тому

@@EverydayAstronaut I'm not surprised to hear that - everything you do is brilliant and inspiring and I will love watching your next videos regardless!

@steviepatterson7285 Рік тому

Tim thank you so much for doing these deep dives into rockets. As a rocket nerd myself I already knew most things but I always learn something new when watching your videos

@MrMuki61 2 роки тому

Superb video. Very in depth, to the point in which I thought I was listening to a course lecture about Rocket Propulsion 101 (but more fun!). It's insane that we get to see these videos for free!

@kaltenstein7718 2 роки тому

Your Videos are always so cool to watch, you dont notice the hour going by, because it is all so interesting. Can't wait for the Full Elon Interview!

@idbek 2 роки тому

This was fantastic - thanks! I learned a ton. So well done! Can’t wait for more! Q: How is the Raptor2 an improvement over version1?

@galfisk 2 роки тому

It's got a lot fewer sensors and bolted flanges.

@Deathven1482 2 роки тому

In addition to the previous comment, it also has more thrust and is simpler to manufacture!

@Brazuns 2 роки тому

Finally! A video! Not just another two hour livestream coverage, but a real video talking about case, something that everybody can learn from. We want N1, we want deep unseen dive into Buran. I so thirsty for full on videos.

@Eur08000 2 роки тому

to be honest: I though this is going to be dry and boring and I wouldn't get it at the end, but I was very very surprised how entertaining and informative it was and that I actually understood it! very well done and am looking forward to more of those.