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elhamkad
@elhamkad
Igor Ivanovich Sikorsky .. was one of the pioneers of the aviation industry and a designer of helicopters and airplanes. In 1939, Sikorsky designed the first usable helicopter named Vot-Sikorsky VS-300 and modified his design to create the Sikorsky R-4 helicopter.🚁
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mosmos🎩
@mosicaster
Sikorsky designed and flew the first successful single-rotor helicopter in the United States, the Sikorsky R-4, which became the world's first mass-produced helicopter. His contributions to the field of aviation have had a lasting impact on the way we transport people and goods through the air
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