Operational History
The S-60 (registered N807) first flew on March 25, 1959. The helicopter accumulated 333 hours of flight in its two-year flight career, and was evaluated by the US Navy, with demonstrations also flown for the US Army. While effective in its designed role, the helicopter proved to be underpowered. Sikorsky was already working on an enlarged, turboshaft-powered successor, the Model S-64, which was ordered into production for the US Army as the Sikorsky CH-54 Tarhe.
The prototype S-60 was one of the last aircraft that Igor Sikorsky was fully involved with from design and development through the two years of its flights. The prototype crashed in April 1961.
Read more about this topic: Sikorsky S-60
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