Sikorsky-Boeing SB>1 DEFIANT helicopter achieves first flight
WEST PALM BEACH, Fla., March 21, 2019 /PRNewswire/ — The Sikorsky-Boeing SB>1 DEFIANT™ helicopter achieved first flight today at Sikorsky's...
Sikorsky-Boeing SB>1 DEFIANT
WEST PALM BEACH, Fla., March 21, 2019 /PRNewswire/ — The Sikorsky-Boeing SB>1 DEFIANT™ helicopter achieved first flight today at Sikorsky's...