Sikorsky-Boeing #SB1 Defiant Completes First Flight
The Sikorsky-Boeing #SB1 DEFIANT™ helicopter completed its first flight on March 21, 2019. More to come on this exciting leap forward in rotorcraft technology!
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![Boeing Sikorsky - SB-1 Defiant Joint Multi-Role High Speed Helicopter Simulation [720p]](https://sun9-35.userapi.com/n14DB6s_MBLoasJK6_8b-yMr63qSN8diQ3PdGw/VIZemOkh5Bs.jpg)
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![Sikorsky Boeing - SB1 Defiant Future Vertical Lift Helicopter Simulation [1080p]](https://sun9-71.userapi.com/GE7yFYywz0ILu6ZEFa3r5b16L1AloI5avuIM_g/Ou0usZmS-Wg.jpg)
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