Borgward Kolibri

The Borgward BFK-1 Kolibri, aka Borgward-Focke BFK-1 Kolibri, (Kolibri meaning "hummingbird" in German) was a German three-seated utility helicopter built by Borgward, designed by Heinrich Focke. It was the first German helicopter after World War II. The helicopter first flew on July 8, 1958 in Bremen, piloted by Ewald Rohlfs. Two prototypes were built. The helicopter had a steel tubing fuselage, and was covered with metal. It had a fabric-covered v-tail the end of which would have rotors. The main rotor had three blades with steel tubing for the centre, covered with wood. The helicopter had a six-cylinder air-cooled Lycoming VO-435-A1B engine, producing 260 hp. The fuel tank was capable of holding 180L. The helicopter could be used for spraying in agriculture, and could carry up to 300 lbs. Development ended after the two prototypes, as Borgward went bankrupt shortly after in 1961.