Boeing’s A160T Hummingbird unmanned rotorcraft recently completed its longest flight to date after accumulating 12-hours of airborne testing.
The turbine-powered A160T (below) took off just after mid-morning on October 12 at a site near
Boeing claims the flight used less than 60 percent of the aircraft's maximum fuel and attributed this to the A160's design, including its optimum speed rotor.
The 12-hour flight followed an eight-hour flight on September 27 during which the Hummingbird carried a 1,000-pound (453.6kg) payload.
Boeing now plans to fly the aircraft for 18 consecutive hours with a 300-pound (136kg) payload.
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