The Sikorsky H-19 Chickasaw (company model number S-55) is a multi-purpose piston-engined helicopter that was used by the United States Army and United States Air Force. It was also license …

The Sikorsky S-55 helicopter was a utility helicopter developed with company funds and without government sponsorship. Sikorsky designed and fabricated a mockup of an entirely new model with …

The Sikorsky S-55/H-19 helicopter - History, photographs and detailed technical description.

The first generation of operational helicopters were small and had limited payload capacity; by the end of the decade, a second generation that included more capable machines had emerged, with Sikorsky …

Nov 10, 2025 · The Sikorsky Aircraft Corporation S-55 was flown by two pilots in a cockpit placed above the passenger/cargo compartment. The most significant design feature was moving the engine from …

The Sikorsky H-19 Chickasaw (company model number S-55) was a multi-purpose helicopter used by the United States Army and United States Air Force. It was also license-built by Westland Aircraft as …

During 1950, the Royal Navy had received 10 rescue (HAR.21) and 15 anti-submarine (HAS.22) versions of the Sikorsky-built S-55 airframes for eval ... The main driver for the S-55 evaluation was …

The Sikorsky S-55 is a medium single-engine utility helicopter with a capacity of max. 10 passengers built by the American manufacturer Sikorsky Aircraft. The military versions were the H-19 (US Air …

Sikorsky created the S-55 in light of a US military prerequisite for a substantial universally useful helicopter. The US Defense Department granted Sikorsky an agreement to create such a helicopter …

Sikorsky Aircraft developed the Sikorsky S-55 with its own funds. Dimitry D. Viner piloted the first YH-19 on its maiden flight on November 10, 1949. A total of 1,728 S-55s were built by Sikorsky and three …