GYRODYNE Helicopters

While British development of the gyrodyne was discontinued in a 1960s recession, in the U.S. it took a significant step forward in November, 2005, when the U.S. Defense Advanced Research Projects Agency (DARPA) awarded a $40 million four phase contract to a GBA led team to design a proof-of-concept high speed, long range, vertical takeoff and landing (VTOL) aircraft for use in Combat Search and Rescue (CSAR) roles.