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