Dornier Do 32

The Dornier Do 32E was a simple collapsible one-man helicopter designed for military use in Germany in the 1960s, for observation and communications and small enough to fold into a trailer towed by a jeep. Like some other light helicopters of its day it used rotor tip jets, driven here by compressed air from a small BMW gas turbine and compressor on top of the fuselage, which removed the need for a tail rotor. It first flew on 29 June 1962. Only three flew, all lost in accidents, and the German Army placed no orders. A pilotless Do 32U and a drone, the Do 32K, were also developed, and the unflown fourth prototype is in the Deutsches Museum.