Sikorsky Aircraft CH-53K King Stallion First Flight Video, 미국해병대 수송헬기 CH-53K

On Wednesday October 28, 2015 at the Sikorsky Aircraft Development Flight Center the successful first flight of the U.S. Marine Corps’ CH-53K King Stallion heavy lift helicopter prototype, known as Engineering Development Model-1 (EDM-1). The 30-minute flight signals the beginning of a 2,000-hour flight test program using four test aircraft.