How Rocket Engines Work - Part 1 - Thrust and Efficiency

[ThingO]

I love the professionalism of the videos, but if you could add more diagrams of specific parts you're talking about that would help me out a lot!

[clayton]

Very informative, I hope your channel grows, you're video quality is great.

[cylosgarage]

I love your channel. I can't wait till you make it big

[jinniu]

Great videos, having Jim from The Office explain how a rocket works is just icing on the cake.

[enlightenedtrucker]

Bro!!! Iv'e been looking for a channel like this for yeearrrrssss!!!!

[raheelshayaan]

This is whats gonna help me design a rocket

[harrysk]

Here from reddit :)
Great job on the first video in this series!

[jigssscupid]

Day 6 of lockdown and I subscribed... 😨😅

[thewebspinner]

Awesome vid! looking forward to the next parts!

[williamchamberlain]

Came here from a recommendation off of a Copenhagen Suborbitals video on welding fuel tanks.

[danielramirezcruz.]

Fantastic video... great work l love it thanks...

[tiapc]

What about weight ? That has to be one of the most major factors. The really old 1960's era RS-25 engines being mandated by law to be used on the SLS have an impressive amount of thrust. But when you factor in weight, these are engines are not impressive at all.

[jcornell]

Came from listening to the orbital mechanic podcast

[EagIe]

Metric units would be nice for everyone not from the usa

[bromanfpv]

Q: If a rocket engine produces 250 tons of thrust, is that equal to 250 tons in lift capacity?

[primodernious]

nasa had this ides of the perfect ratio between mass and fuel, but the equation create the same problem what ever size. the more fuel the more you need to burn to lift it. no matter the amout of fuel small or big the same problem persist. another thing, rockets can't burn cerosine in vacuum. there is no room for a separate oxygen tank of the uss space shuttle. the setup is a one giant cerosine tank burning trough the shuttle and to booster rockets only for take off. most of the space on the shuttle is just cargo and crew. there is no additional room for a oxygen supply big enough to reach orbit. another thing, carring oxygen onboard the shuttle for lift makes extra weight and makes the fuel even more inneffective.

[Dude]

Technically it is not "exhaust velocity" that produces the Thrust... It is the pressure of the expanding gasses on the inner surface of the bell nozzle... That's why rocket engines work in the vacuum of space in accordance with Newton's 3rd law. Exhaust velocity is merely a consequence of above Primary reaction producing Thrust.

[highvoltagerules]

Yeah the video was good but what about actually telling us how the engine works from the start of fuel intake to the exhaust? Ya know explaining the parts of the engine and what’s happening? I didn’t learn really anything” now I’ve to keep looking else where when reading your video title you don’t really tell us much at all!

[CallOfDuty]

whats the formula for fuel efficiency?

[primodernious]

rocket nozzle does not increase thrust. it actually decreases it. it would work better to leave that out as the nozzle create more air resistance. anyway rockets can't work without somthing to push agaist anymore than a car engine can work without the top cover over the pistons. you can't push agaist nothing. action, reaction does not work agaist nothing.