Trực thăng bay nhanh nhất
Sikorsky X2 là máy bay trực thăng có tốc độ cao nhất. Nó vừa thử nghiệm, với bộ cánh quạt đồng trục do Công ty Mỹ Sikorsky Aircraft phát triển.
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