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New postcard made for Sikorsky Aircraft employees in 1993/94. Back states: S-64 "Skycrane" (First flight May 9, 1962) The western world's largest helicopter was powered by two 3,200 shp Pratt & Whitney turbine engines, with a military rating of 4,050 shp each. Three world altitude records for helicopters were claimed by the Skycrane on April 24, 1965. UTC Archive Photo printed by Sikorsky Aircraft
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