The SB-1 Defiant is finally here and ready to party.

After years of delays, Boeing and Sikorsky's unusual coaxial rotor helicopter conducted its first flight in the skies above Florida on Thursday, the companies announced.

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On June 29, U.S. Navy crews completed the first comprehensive initial operational test and evaluation of the MQ-8C Fire Scout, an unmanned helicopter the Navy hopes will increase the lethality of the service's new littoral combat ships.

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Just months after conducting its maiden flight with a 20-minute low hover and then demonstrating a speed of 80 knots, the advanced V-280 Valor tilt-rotor prototype has achieved an effective transition to cruise mode, hitting speeds up to 190 knots with its rotors smoothly transitioning between its hover and cruise configurations, according to announcement by Bell Helicopter on Tuesday — a major step forward for the experimental airframe that may end up replacing the UH-60 Black Hawk and AH-64 Apache helicopters in the U.S. Army's fleet.

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Photo via Bell Helicopter

After years in development, the future of vertical lift has finally arrived on the Army’s doorstep: Bell Helicopter’s advanced V-280 Valor tiltrotor prototype finally took its maiden flight at a test facility in Amarillo, Texas, the company announced on Dec. 18 — a major milestone for a next-gen aircraft designed to meld the tactical maneuverability of the branch’s current rotary fleet with the range and force projection of fixed-wing troop transports.

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Photo via Bell Helicopter

Bell Helicopter’s advanced V-280 Valor tiltrotor prototype, developed to replace the iconic AH-64 Apache attack chopper and UH-60 Black Hawk utility copter in the Army’s fleet of rotary aircraft, is “100%” complete and ready for its maiden flight before the end of 2017, the company announced on Sept. 6.

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