The Real Reason SpaceX Developed The Raptor V2 Engine!

The Real Reason SpaceX Developed The Raptor V2 Engine!

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[charlybambs]

The narrator / presenter of this channel is by far the best on YouTube. His mastery of "all things space" is beyond comparison, just as he is gifted with the best teaching voice and skills, that make each episode so pleasant to listen to and learn from. The illustrations are top-notch. Hope you will one day make "physical" podcasts, so we your fans can see you...😀

[TheGrest_One]

Really enjoyed this one and would definitely like to see one done on engine cooling and other technical aspects!

[livingexcuse]

This video seems VERY point on point with other one ive seen...

[adahmantium]

Wow your content quality and quantity both are magnificent. I appreciate it. Have a great journey ahead.

[bazoo]

~ 1:05 - Energomash attempted full flow staged combustion engine with their RD-270 in '60s, and Aerojet Rocketdyne on early '00s with their "integrated powerhead" demonstrator. Raptor was the first to actually _fly._ Full flow staged combustion is the crazy part of Raptor, not use of methane.

[long-pierproductions]

Fascinating, these are things I have always been curious about. Now how about that cooling system?

[jkomshi]

Great video and explanation. But would add suggestion to be careful with words, so that schools would not be restricted from sharing with younger children. Right or wrong, it could be a barrier to sharing a great work.

[preacherno]

Dry good and pedagogical description of how the push occurs, using the lungs, mouth and lips as very apt metaphors for the tank, burning chamber and nozzle. Even kids like me understand.

[twelvetenth]

There is such overal natural principle:

Whatever is needed remains. Whatever is not needed anymore eventually ceases to exist.
Even if the given thing itself has succesfully done it's own job.

[bazoo]

~ 2:00 - Well, no. I know this is the "idiot guide to rocket engines", but I still think you should have mentioned that oxygen is not the only possible oxidizer, especially as you use a brief clip of N2O4 around 2:50 (without going into details of hypergolics or outright exotics like fluorine.) Also, you should have mentioned you are talking about _liquid fuel engines, _ and that there are also solid fuel engines, outside of scope of this video.
~ 4:10 - And what about hydralox engines?

But, all in all, this was a decent overview.

[douggolde]

Self combust probably means platinum catalyst.

[isaacwhite]

that's pretty good with the rocket science but really would like to learn about the mechanics of the relanding and how it works that's pretty cool of it just comes back down in upright position right back to the landing pad it's really fasinating.

[malakiblunt]

its never rocket science - its rocket engineering

[mathiaslist]

questionable if a few percent better specific impulse are worth a higher risk --- so even if it works it is bad cause it incorporates an internal flow

[rh]

What are they going to do for artificial gravity on the star ship?

[colindavidson]

While largely correct, the little detail in this video are often just plain wrong. The Raptor is not the first attempt at a full-flow staged combustion engine, it is the third. It is the first to fly, though, as the other two didn't get as far as flight testing.

Also, the oxygen side of a rocket engine is most decidedly not the same for all rocket engines. If only because not all rocket engines have an oxygen side. Oxygen is NOT required for all fuels to burn. There have been hydrogen peroxide oxidizers in some rocket engines. The super draco thrusters on a Dragon capsule use hypergolic fuels, neither of which is oxygen. Solid fuel boosters, which are definitely rocket engines, use no oxygen.

[stevebroome]

I have a question. Since there have been at least 33 Raptor version one and 1.5 engines and neither are going to fly a Starship, what will happen to the old engines? I wish Spacex would modify a Falcon 9 and launch them into orbit. That would give them lots of data and might even get more Starlink satellites into orbit.

[dazuk]

I am pleased you mentioned the Everyday Astronaut. I remember Elon talking to him and saying Raptor 2 doesn't use pre-burners now. I don't fully understand how they fire a Raptor up and Elon was not spilling the beans. Whatever the case, the Raptor 2 is a demon rocket engine....and there is more to come from it.

[nigelpalmer]

Aaaand one day we expect it to fly? More important we expect it to land we wonder if th heat shield tiles will stay on for re-entry.

[karlthemel]

The RS-25´s hydrogen fuel allows a higher exhaust speed than methane fuel.