Boeing A160 Hummingbird

The DARPA sponsored program YMQ-18A was a unmanned aerial vehicle (UAV) helicopter started in 1998 for both the US Army and US Navy. Achieved maiden flight in January 2002. In 2009 the A160T variant was evaluated by the USMC against the K-MAX. In 2011 US Army special forces evaluated jungle test flights in Belize. After some crashes, delays and technical issues the Army cancelled the program in 2012