HELICOPTERS
Time Period
Alphabetical By Time Period
Configuration 1907-1922 Cornu 1907 Helicopter Tandem Rotor 1940-1945 Aeronautical Products Model 1 Single Main Rotor w/ Tail Rotor 1940-1945 Aeronautical Products Model 3-A Single Main Rotor w/ Tail Rotor 1940-1945 Sikorsky Aircraft XR-4 1946-1949 American Helicopter XA-5 Top Sergeant Torqueless Single Main Rotor 1946-1949 Bell Aircraft HTL-2 Single Main Rotor w/ Tail Rotor 1946-1949 Bell Aircraft Model 47B 1946-1949 Sikorsky Aircraft S-54 1950-1954 Sikorsky Aircraft S-55 Bell Aircraft Model 30 Ship 1 Bell Aircraft Model 30 Ship1-A Bell Aircraft Model 30 Ship 2 Bell Aircraft Model 30 Ship 3 Pescara 1F Pescara 2S Sikorsky Aircraft S-51 Sikorsky Aircraft S-52-1 Sikorsky Aircraft S-52-2 Sikorsky Aircraft S-52-3 Sikorsky Aircraft S-53 Sikorsky Aircraft YR-4A Sikorsky Aircraft YR-4B