the Sikorsky S-76 design was based on the popular S-70 helicopter. The S-76 features a conventional four-bladed and fully articulated main rotor. The rotor is powered by two turboshaft engines ...

The USMC’s heavy-lift transport helicopter replacement program is underway, and the Lockheed Martin unit is contracted now for a range of CH-53K King Stallion modules, rotor blades, and engines.