3 articles
Amateur liquid-fuel rocket engines
Amateur liquid-fuel rocket engines are bipropellant rocket engines built by hobbyists and university teams, typically pressure-fed and burning nitrous oxide or LOX with alcohol or kerosene.
Amateur rocketry
Amateur rocketry is non-commercial research rocketry in which individuals or small groups design, build, and fly their own rockets and experimental motors, from small solids to liquid engines.
Repulsor (rocket)
The Repulsor was a series of small liquid-propellant rockets built by Klaus Riedel of the German amateur society VfR, flown near Berlin in 1931 and 1932.