U.S. Marines, conduct training and physical conditioning at Marine Corps Mountain Warfare Training Center. Thumbnail Credit: Lance Cpl. James B. Hoke, .
The CH-53 Sea Stallion is the most common name for the Sikorsky S-65 family of heavy-lift transport helicopters. Originally developed for use by the United .
The Sikorsky CH-53E Super Stallion is the largest and heaviest helicopter in the United States military. As the Sikorsky S-80 it was developed from the CH-53 .
Views from street level on Michigan Ave at 5:21. The Sikorsky H-34 (company designation S-58) is a piston-engined military helicopter that was originally .