First Flight of the SB-1 Defiant, a Potential Blackhawk Helicopter Replacement

The Defiant, or something very much like it, could replace the UH-60 Blackhawk transport helicopter in U.S. Army service. The SB-1 Defiant helicopter, a new rotary-winged aircraft design developed by Sikorsky-Boeing, flew for the first time on Friday, March 21, 2019. The Defiant uses a unique …