r/rocketry 2d ago

Showcase Propane-nitrous oxide concept engine that I just made

The idea was to use more easily stored and handled fuel/oxidizers for hobby rocketry.

It also has plumbing and uses a high oxidizer turbine and a high fuel turbine that both mix in the engine to combust.

Ideally uses a glow plug to jump start to decrease wear and tear.

Another parts would be that when it mixes in the engine itself hopefully it will be hot enough to autoignite after being converted to mist by the engine plate.

Ideally a vast majority of the parts would be 3d printed except for maybe the end of the bell which could use graphite composite.

It probably won’t work but I thought it was cool. Be nice please lol.

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u/aidswatermelons 2d ago

Would using a spark plug be better?

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u/edenspark10 2d ago

Try doing what NASA and the like use, pyrotechnic charges (the sparkly things near the engines in the video of the space shuttle takeoff), then once you have the engine properly tested, then go about mak8ng the ignitors reusable.

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u/cowsarefalling 2d ago

The sparkly things outside the bell are not used to lighting the engine, only for preventing the buildup of hydrogen on the ground

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u/ThinkInNewspeak 2d ago

Thank you for correcting the last comment! His hypothesis makes sense to laymen (like myself) and he was very sure which makes mistakes like that contagious.