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

Показать описание

00:00 - Intro
02:55 - Basic physics of rocket engines
06:10 - Rocket engine cycles
20:30 - Rocket fuel comparison
30:40 - Raptor vs other rocket engines
44:05 - Summary

SpaceX's new raptor engine is a methane fueled full flow staged combustion cycle engine and its so hard to develop, no engine like this has ever flown before!

Now this topic can be really intimidating so in order to bring the Raptor engine into context, we’re going to do an overview of a few common types of rocket engine cycles then compare the Raptor to a few other common rocket engines, like SpaceX’s current work horse, the Merlin, The Space Shuttle’s RS-25, the RD-180, Blue Origin’s BE-4 and the F-1 engine.

And if that’s not enough, not only is SpaceX using a crazy engine cycle, they’re also going to be using Liquid Methane as their fuel, again something that no orbital rocket has ever used! So we’ll also go over the unique characteristics of liquid methane as a rocket fuel and see if we can figure out why SpaceX went with Methane for the Raptor engine.

We'll also break down and explain all the different engine cycle types so you know what the full flow staged combustion cycle is, how it works, and how it compares to the other cycles.

So by the end of this video hopefully we’ll have the context to know why the raptor engine is special, how it compares to other rocket engines, why it’s using methane and hopefully find out if the Raptor engine will be the new king of rocket engines…

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

HUGE thanks to my Moon Walker Patreon supporters! Blake Jacobs, Eli Burton, Jethro, Mac Malkawi, Neurostream, Ole Mathias Heggem

The best place for all your space merch needs!

Рекомендации по теме

Комментарии

No.

Because raptors commonly optimize for small agile males and larger females able to carry more.

Thus, they would be queens.

Good job on those animations!

scottmanley

This is what I was hoping the internet would be. Thanks for your hard work!

tomanderson

Absolutely incredible. I’m speechless. Can’t believe I actually just watched this video on YouTube for free...

alrightydave

The fact that the F-1 holds up as well as it does despite how old it is speaks volumes about the sheer engineering that went into the Saturn V. Truly a beautiful craft that I hope will always be remembered in this new era of spaceflight ushered in by SpaceX and beyond.

HoHhoch

I'm retired from a technical career. Over the years it was clear, whenever I was given a technical briefing on a subject I was unfamiliar with, and the person giving the briefing was unable to adequately explain the subject in "layman's" terms, it indicated that the person doing the briefing did not truly understand the technology. It is obvious that that is not the case here. Excellent orientation! Very impressive!

franksqrow

This is probably one of the best videos on rockets I have ever seen. The amount of information you crammed into 49 minutes is crazy. Thanks!

justrelax

As an aerospace engineering student, I can say that some of this video is basically a sophomore class, but the real propulsion stuff, that’s straight up senior year content, this video is a senior year Aerospace engineering lecture. Here’s the classes you hit on:
Intro to Aerospace Engineering 2
Thermodynamics
Propulsion
Advanced space propulsion

Aaron

BAM!!! That's a high grade script, animation and delivery! Well done!

briansmobile

Me: "I'm definitely not going to watch the whole video"
*49 mins 1 sec later*
"Ups.."

ob

"Great video. Couple notes: Raptor designed for subcooled CH4/O2, so propellant density & thrust increase up to ~8%, as needed for mission. 380 Isp & up to 50% thrust/weight improvement over time. Merlin thrust/weight doubled from V1, but Raptor is closer to optimum."

"Propellant stays same, but almost everything else improves. Fundamental goal is minimize cost per ton to surface of Mars."

EverydayAstronaut

There are people that try to stretch a 1min topic into 15min to gain more watch time and then there is cramming a 3 hour lecture on ROCKET SCIENCE into 49 minutes...

VulpeculaJoy

The fact that this is free to watch is insane. Excellent work!

mq-reaperdrone

Ok i must say you have surpassed yourself
, a very complex subject simple explained and visualized!
Great Job, probably the best video of you yet! <3

dongurudebro