Sikorsky Aircraft's X2 Technolog demonstrator achieved a speed of 181 knots in a test flight today at the Sikorsky Development Flight Centre in Connecticut, USA. The X2 Technology demonstrator ...
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New photos raise questions about China's coaxial-rotor helicopter knockoff
New images recently emerged raise the possibility that China has built another compound helicopter demonstrator, following the S-97 Raider clone seen in 2025, this time with a resemblance to the ...
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