Sikorsky CH-53K King Stallion

The Sikorsky CH-53K King Stallion (Sikorsky S-95) is a heavy-transport helicopter designed and produced by Sikorsky Aircraft. The King Stallion is an evolution of the long-running CH-53 series of helicopters that has been in continuous service since 1966, and features three up-rated 7,500 shp (5,590 kW) engines, new composite rotor blades, and a wider aircraft cabin than its predecessors. It is the largest and heaviest helicopter in the U.S. military. The United States Marine Corps made plans to receive 200 helicopters at a total cost of $25 billion. Ground-test vehicle testing started in April 2014; flight testing began with the maiden flight on 27 October 2015. In May 2018, the first CH-53K was delivered to the Marine Corps. In April 2022, it was declared to have passed initial operational capability.