Sikorsky-Boeing SB 1 DEFIANT™ helicopter achieves first flight
The Sikorsky-Boeing SB 1 DEFIANT™ helicopter achieved first flight on March 21, at Sikorsky’s West Palm Beach, Fla., site. The aircraft, developed by Sikorsky, a Lockheed Martin Company and Boeing, will help inform the next generation of military helicopters as part of the U.S. Army’s Future Vertical Lift program. With its two coaxial main rotors



