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 propulsion system, ditching the tail rotor of conventional helicopters and adding a push propeller. The result is an aircraft the manufacturer touts as …
Read More »Watch First Flight of the SB-1 Defiant US military’s future long-range assault helicopter
