Is SpaceX's Raptor engine the king of rocket engines?

Now this is a fantastic video! Thank you for your efforts. Very well done. Cheers.

My how I have lost my touch when it comes to space travel

Great video, loved the fathom quip, you slid it in quite nicely.

Hearing brand new and boca chica is weird now 😅

merlin had 70 flight's 4 years ago? today it's like 280 flights and over 250 landings 😮. also proved 18 reflights on one booster

I remember watching this thinking the raptor numbers were aspirational that would never be achieve. Boy was I wrong, we are already past those.

When your rocket propulsion professor has you write an annotated bibliography on an everyday astronaut video:

Very good content..... thanks

Note The RD -180 was designed decades before the merlin and the un tested Raptor

Great video! Love them

If you ever wondered if your autistic you seeing this comment awnsers the question

all this did was convince me the rs25 is still the best rocket engine ever made

In a future video, Elon Musk mentions that the theoretical max ISP for methane mentioned in this video is too high! Awesome work

You are wrong. Saturn V's F1 has one time full cut off/shut down, so that it is not %100!
On the other hand how do you not talk about most flight proved most secure Liquid Propellant Rocket Engine the STATE-OF-ART RD107/RD108 of most reliable SLV THE SOYUZ of RUSSIA?!! Thousands of flight and there was hardly any engine problem!!!
At Apollo 13 flight due to lightening upon Saturn V, one of the F1 engine was cut off of 5 engine. Capcom Flight Director anounced to the astronauts that "same type we go, same type we go, other remaining 4 engine of F1 is gonna run little more and compansate!

If Russian CC tech is 10 Fathom
With 2018 tech your raptor is just 1 fathom

Take tech oppotunities and 3D tech and open source metalurgic datum on your account! Spacex can not achive this 40 years ago, it was impossible.

What a f*** awesome work! Thank you for making this video.

Great video and info ! Another great engine is the engine for the NASA designed "24-Hour Lunar Shuttle" (LEO to LLO) by Stanley K. Borowski. This engine can takes US out from the deep gravity well of LEO to Mars orbit. Then the rocket can be refueled with Oxygen (O2) from Mars or the moon of Mars for return to LEO. T. Lipindki

I would like to propose that to keep the engines from melting we use water injection to promote a boundary layer of water vapor to insulate the Bell nozzle from extreme heat.
I propose we make the engines big like 25 ft high..bigger nozzle gives more time for propellent to burn inside the nozzle, Bigger nozzles
are known to be unstable though.
To fix that lets do like with jet engines-having maybe 6 burner burner can combusters

they should run the engines on swamp gas.

The bigger the engine the bigger the bang. Courtesy of the big bang theory..
The bigger the rocket the bigger the bang for your buck. Simple isn't it.

Baby kingDom Hello 🤩

Doesn't look complex. Pretty basic if you think about it, with a working brain

8000th Comment

oooooh my. Where was this channel have searched a lot for rocket engine but could not get the right video that explain how it works with this 3D effect as this. Had to SUBSCRIBE immediately

My Strategy is being executed without any interruptions✌🏽 Expect a huge growth & innovations soon.

If the engines cones make the engines more efficient, what size of cone will be needed for Mars weak atmosphere, or will it be a vacumn optimized engine?

Great job Tim. Your explanations are very clear. Combined with the excellent graphics this is a very instructional video. Keep up the good work.

AVP sweet / and my fault the pay was the guy in the diapers / o the .... dirpar itself e

Hello, your video is really great, by the way can I have the link or the address to buy some decorative globes on the top of the cabinet on the left side of the screen. Thank you to you

am i wrong or are the french actualy the ones with best engines, besides raptor? vulcaine rocket engine has 432 specific impulse and 303.5lbf of thrust... if u look at ariane 5 launch, that thing explodes out of the launch pad, supper acceleration. When we will get video about hte worlds strongest rocket in actual use.. not just experimental test flight? pls make one video about the best rocket engine of all times.... vulcaine!

How do rocket engines fail?

Thank you

Why are Rp1 engines much closer to maximum teoreticsl efficiency than Methane or nHydrogen?

What's really interesting is that rocket engines are actually cheaper than the current generation turbofan engines you see on airliners. The GE9x on the Boeing 777x costs $42 million per engine. But of course, the turbofan is designed probably fly nonstop for over a decade or maybe even 2, flying thousands of flights.

Bi color eyes

AVP 👽
Sweet I bet my fault// it's cool/ well

And now here we are 3 years later with Raptor v3 at 350 bar!!

stoichiometric combustion ratio, ok man - you had me on this one

nice

Seriously, you have excluded the RD170? It did fly just not in the USA.
Please people double the power of the RD180?

What is actually the benefit of a full-flow engine over a oxygen-rich or a fuel-rich design? It seems it will reach exactly the same efficiency with a simpler design.

Musks $/kN ratio is pretty useless unless you factor in everything else. The bottom line is $/kg to orbit for which you need to include ALL factors including the manufacturing and operating costs of handling the propellants. Also, how is the Raptor engine dealing with the problem of the "dirty" hydrocarbon CH4 in a full flow system, the problem that previous and current engines shy away from? The key to regular future manned space travel is engine reliability. This is the absolute bottom line. It's not about raw thrust/weight ratios, fuel efficiency, cost, etc, the 'king' of engines will be the one that proves itself to be RELIABLE above all else. The Raptor engine unfortunately doesn't currently come close to being reliable compared to other engines, so there is no way it can be given that title.... 🤔

Thank you so much for the information. I learned so much from this, makes me even more excited for the next launch

Anyone who thinks we can go to Mars and make our own rocket fuel to return to earth has been smoking something strong in their pipe. Like going to the Sahara desert and setting up a still in order to make booze and then think they will be opening a liquor store to sell enough and make enough money to buy an airplane ticket to get the hell out of there to get home!!

I think liquid methane is a problem it seems to be freezing too much. Relativity space's rocket was having issues as well. And now 3 or 4 of the raptor engines did not work on Starship today.

Gonna watch it many times it's intresting 😃