French engineer and aviation pioneer who invented the joystick and built the first monoplane and radial engine. He also tested many liquid-propellant rocket engines, including some that used cryogenic fuels, and put forward ideas for long-range ballistic missiles which won him support from the French Army for his rocket experiments. In 1930 he published his fundamental work, L’Astronautique,1 and in 1935 a sequel, L’Astronautique-Complément.2 A crater on the Moon’s farside is named after him.
References
Esnault-Pelterie, Robert. L’Astronautique. Paris: A. Lahure, 1930.
Esnault-Pelterie, Robert. L’Astronautique-Complément. Paris: Société des Ingénieurs Civils de France, 1935.