==Specifications=====X-49A===*Crew: Two*Powerplant: Two General Electric T700-GE-701C engines===SH-60B (for comparison)=====See also====References====External links==* Jane's All The World's Aircraft - X-49A* "High Speed Helicopter set for first flight in June" article on FlightGlobal.com* Rotor and Wing Cover Story Dec 2007* Vertiflite Cover Story Winter 2007* Aerospace Testing International Dec 2007* Boeing Eyes X-49A Technology for Apache Attack Helicopter* "Hot-Rod Helicopters".
Piasecki X-49 "SpeedHawk" je eksperimentalni dvomotorni žirodin helikopter, ki ga razvija ameriški Piasecki Aircraft.