military

armyUS Military Going Beyond Helicopters

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December 30, 2018 |
Brian Wang |

The Sikorsky–Boeing SB-1 Defiant is built and will make its first flight early in 2019. The SB-1 Defiant will have a cruise speed of 250 knots (460 km/h). It will initially will have less range due to using the “old” …

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