Sikorsky HO4S Chickasaw

Sikorsky H04S Chickasaw Helicopter

H-19 chickasaw

Sikorsky H04S Chickasaw Helicopter

Sikorsky HO4S Chickasaw TYPE: U.S. Navy Sikorsky HO4S Chickasaw Helicopter VERSIONS: HO4S-1, HO4S-2, HO4S-3 SERVICE YEARS: 1950 to 1969 w/ U.S. Navy MODERN POPULARITY: UNKNOWN/FORGOTTEN  PRE-1962 DESIGNATIONS: US Airforce/Army: H-19 US Navy/Coast Guard: HO4S US Marines: HRS Civilian: S-55 The Sikorsky HO4S Chickasaw was the U.S. Navy's designation of the H-19 Chickasaw. The Sikorsky Model S-55 was a multi-purpose utilitarian helicopter that was widely successful and popular among civilian and military services.  The Sikorsky S-55 was the first true successful American helicopter design to see large scale production with over 1700 built.  The Model S-55 would go on to become...

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