Animated video detailing the Future Vertical Lift (Medium) attack and utility rotorcraft concept variants from Sikorsky-Boeing. This design, known as the SB-1 Defiant, will be pitched to the US Army to replace its AH-64 Apache and UH-60 Black Hawk helicopter fleets. The maiden flight of the SB-1 Defiant demonstrator is scheduled for the first half of 2018.
Video: Lockheed Martin

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