The Sikorsky H-19 Chickasaw is a multi-purpose piston-engined helicopter that was used by the United States Army and United States Air Force. It was also license-built by Westland Aircraft as the West
An Army UH-19D Chickasaw
HRS-1 of the USMC, on display at a museum, 2014
Front three-quarter view of the Sikorsky H-19B Chickasaw helicopter at the National Museum of the United States Air Force showing the engine
UH-19B rotor head, with main rotors folded
The Sikorsky H-5 is a helicopter built by Sikorsky Aircraft Corporation.
A Sikorsky HO3S-1 of Helicopter Utility Squadron 1 (HU-1) takes off from USS New Jersey
U.S. Air Force H-5D takes off post-World War II.
Instrument panel of the S-51
A U.S. Navy HO3S-1 in action during the Korean War (1950–1953).