🚀Launcher E-2 - 3D Printed Liquid Rocket Engine

Launcher E-2 - Thrust: 22k lbf, Propellant: LOX/RP-1, Oxidizer-rich staged combustion, Specific Impulse: 365s with vacuum nozzle, 98% Combustion efficiency (c*), LOX cooled, Copper Alloy, 3D printed. In development.

[@EvolutionAutomotiveLLC]

That's absolutely fantastic! Can't wait to see more test fires!

[@hamburgerhamburger4064]

Geez, looks like if they invented rocket engines in the 1800s with all those pipes. There’s so much plumbing, must be crazy to print!

[@Dksjsuww8]

Beautiful

[@theredstonehive]

Nice! A few sources say that E-1 is a 1:40th scale model of the full sized engine, is that true? How large will this engine be?

[@MartinTheGhost]

who's here after the video of everyday astronaut ?

[@전현우-p5v]

It looks like it uses turbopump. Is it whole 3D-printed?

[@nick-k7k]

365 isp as sea level?

[@alfihalma4320]

No, in vacuum with a large nozzle. Still, that's impressive.

[@otheraccount5252]

Oxygen-cooled?
!!!

[@alfihalma4320]

This is pretty nice to move load from the lighter fluids to oxygen. No so interesting for kerolox but definitely for methalox and hydrolox!

[@JameBlack]

🇺🇦💪

[@Ameliaross106]

How much of the plumbing has to be shielded from the high temperatures that come with a staged cycle? Also, how do you seal up the turbo pump/preburner ,doesn’t the main drive axis from turbo pumped give a way for the gases to escape at high pressure, what material would be needed, you would be able to use a graphite powder as a lubricant.

[@lyncistso1111]

Maybe a download link???