Elon Musk Explains SpaceX's Raptor Engine!

Today we’re getting up close and personal with SpaceX’s Raptor 2 engine with Elon Musk. We get into all sorts of details on this engine including how exactly it’s been upgraded and simplified compared to Raptor 1.

00:00 - Intro
00:50 - Conversation Starts
02:00 - Raptor 1 vs Raptor 2
03:50 - Thrust and Chamber Pressure
05:30 - Iteration Philosophy
06:30 - Melting Engines and Cooling
09:30 - Torch Igniters and Starting
13:00 - Full Flow Advantages
15:30 - Swirl Injectors
16:40 - Thrust Vector Control
20:30 - Simplifications
24:50 - Removing Throat Film Cooling
25:35 - Boost Pumps and Impellers
30:35 - Inline Powerhead Discussion
32:15 - Fluorine, Dual Cooling and Aerospikes
35:00 - Chamber Pressure and Impulse
40:00 - Outro

--------------------------

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

The best place for all your space merch needs!

[friendo]

Tim, you elevated your rocket engine knowledge to the point where you can engage in serious conversation with Elon Musk. That’s not all…you also know enough to prompt him to ponder serious technical issues and concepts relating to rocket propulsion. Your passion and efforts to educate yourself is on full display.

[per]

I have not seen another interviewer--even with major media--that seems to work as hard at understanding the science. I think that's one reason Elon gives Tim such great access.

[jamesterry]

I love listening to Elon. A guy with resources most of us couldn’t fathom yet he’s so down to earth. Much respect that he knows so much about everything he does. Of course he has loads of intelligent people working for him but he could literally chill on a yacht for the rest of his life, instead he’s always working 😊

[noe]

I love these Musk technical interviews. Elon gets to let his guard down and be more himself. They are historical.

[elmac]

Crazy how 40 years ago these type of projects were top secret and now we have tons of information of everything going on and the head of the project explaining every detail!

[richbarrows]

Musk clearly appreciates being interviewed by someone who understands and connects at a very high level instead of asking about his business plan or something irrelevant to him. Way to go Tim.

[schafflending]

I have come back to watch 20:30 - 22:10 so many times. This concept which could take volumes to discuss is so distilled here.

[calebj]

Key takeaway: Elon Musk watches Everyday Astronaut videos when he’s hanging out with his friends.

[mp]

Tim is a legend of YouTube he has taken himself from having an appreciation for rocketry to having a full blown understanding of rockets and rocket engine knowledge. What a great path he has laid.

[matthewmarszowski]

LOUD NOISES

engineers and architects are my favorite humans and they deserve all the credit for stuff like this

[decnine]

Elon's understanding about his rocket engine is insane, surely it will propel us towards the stars sooner than we think.

[ddview]

🤯 Superb Tim… and Ponder this… Elon Musk just said - “Me and a friend were watching your video”. Regardless of content that is a hugely important connection of trust and a look inside the mind of arguably the greatest visionary in spaceflight since Werner Von Braun. I loved that you could ask “How does it light then?” and he smiled then laughed and said “now that’s the secret sauce…. Now I can’t tell you the secret sauce”…. So good!

[TheArtofCraftsmanship]

Love this Elon Series! Walking around his world with an informed interviewer is a treat. Thank you.

[vtnjtne]

You did a terrific job with this. I thoroughly enjoyed it. Got a little pulled off around the bubbles, but I tried to keep up. I’ll keep an eye out for more of your content. Good job.

[ritasseremba]

So instructive and described in a soft style that brings the raptor to life..as the marvel that it is🙏🏻thanks for sharing ❤

[lillyanneserrelio]

A CEO that actually knows the science behind his product? # Respect

[juaerez]

Tim, you are documenting important and real future history here. These will be viewed by many in decades to come. Thank you and congratulations.

[daneiten]

I believe that these videos will someday be of great historical importance. Like the Apollo documentaries.

[falkenherz]

I wish there were more of those kinds of interviews. Fantastic. Aided by some very well done editing and insertions. Fantastic.

[rocketman]

brilliant interview and i love his down to earth description of the process and your knowledge Tim much appreciated Bill in Ireland.