Dark Tech Official on MSN

Defiant X: The helicopter built for the future

Sikorsky and Boeing created the Defiant X as a high speed replacement for the legendary Black Hawk combining new rotor ...
Opinion
Found and Explained Official on MSNOpinion

Why the SB-1 Defiant lost the Army helicopter contract

The Sikorsky Boeing SB-1 Defiant combined coaxial rotors and a pusher propeller to achieve high speed and stability. Despite strong performance, range limitations, engine readiness issues, and ...