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Sikorsky R-4
Sikorsky R-4
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Military helicopters
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Sikorsky S-58
Sikorsky CH-53
United States Coast Guard Aviation
Sikorsky S-58
Development
Igor Sikorsky
Vought-Sikorsky VS-300
Rotorcraft
Helicopters
Autogyros
See also
(20)
Aircraft
Sikorsky Aircraft
Heinrich Focke
Sikorsky S-39
Caudron R.4
Caudron R.4
Flettner
Focke Achgelis
1st Air Commando Group
Canada Aviation Museum
Vehicles
YH-32 Hornet
Hoverfly
Tail rotor
United States Navy
USAAF
de Havilland Canada
Northrop Grumman
Lockheed
Main rotor
History of flight
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