zburnt
Active Member
I am trying to start on making a liquid engine for a high altitude rocket (hopefully 200-300km). I think the best place to start would be working on an engine that could generate the required thrust. I think the rocket will weigh around 200 kg, maybe closer to 300. The basic engine design I have decided on is kerosene and rfna (red fuming nitric acid). I will use aluminium for most parts of the engine, and then graphite for the nozzle/combustion chamber. There will be 3 tanks, 1 for kerosene, 1 for rfna, and 1 for compressed gas (prob. nitrogen). I would then have lines connecting rfna and kerosene to the reaction chamber (maybe using multiple injectors, like a line of pipe with many holes in it to mix the fuel and gas well). Then compressed gas would force the liquids out the tanks. I would have valves to control it all, and servos to electronically control the valves. Is this a good design to build and test for static fires, or is there something I am missing. Appreciate the help.