Boeing-Sikorsky Team Tests Rotors of Upcoming Demonstration Helicopter
A joint venture between Boeing and Lockheed Martin's Sikorsky subsidiary has completed the initial ground testing of a new compound helicopter in West Palm Beach, Fla., Rotor & Wing International reported Thursday. The SB>1 Defiant helicopter spun its coaxial rigid rotors at slow speeds while remaining on the ground, as seen in a video posted Thursday.