Analysis of information made available on Sikorsky R-5 which is similar to S-51; it is equipped with Pratt and Whitney Wasp, Jr, 450 hp at 2300 rpm and rotor rpm of 194; 3-bladed rotor has diam of 48 ft; high speed at sea level 103 mph.
Helicopter engineering
Aero Digest
Aero Digest ; 52 , n 3 ; p 73 + 150
1946
Article (Journal)
English
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