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The Boeing X-50A Dragonfly, formerly known as the Canard Rotor/Wing Demonstrator, was a VTOL rotor wing experimental unmanned aerial vehicle that was developed by Boeing and DARPA to demonstrate the principle that a helicopter's rotor could be stopped in flight and act as a fixed wing, enabling it to transition between fixed-wing and rotary-wing flight.
The military flight testing of the XV-3 began on 14 May 1959. Promoted to the rank of Major, Robert Ferry would coauthor the report on the military flight evaluations, conducted from May to July 1959, noting that despite the deficiencies of the design, the "fixed-wing tilt-prop," or tiltrotor, was a practical application for rotorcraft. [5]
The 12th Aviation Battalion was activated in 1966 to move senior officials by helicopter. Initially, it operated a mix of fixed-wing and rotary-wing aircraft to transport senior military leaders and government officials. In September 2004, 12th Aviation Battalion stopped operating the Bell UH-1 Iroquois. [7]
A fixed-wing aircraft is a heavier-than-air aircraft, such as an airplane, which is capable of flight using aerodynamic lift. Fixed-wing aircraft are distinct from rotary-wing aircraft (in which a rotor mounted on a spinning shaft generates lift), and ornithopters (in which the wings oscillate to generate lift).
The U.S. Federal Aviation Administration is indefinitely restricting helicopter flights near Washington Reagan National Airport after a deadly collision between an American Airlines regional jet ...
Most missions use fixed wing flight 75% or more of the time, reducing wear and tear and operational costs. This fixed wing flight is higher than typical helicopter missions allowing longer range line-of-sight communications for improved command and control. [24]
The Alabama Law Enforcement Agency has a fleet of 8 Bell OH-58 helicopters and two airplanes that can be used for executive transportation. These aircraft are also used for prisoner transportation, criminal pursuits, and search and rescue. [3] The fixed-wing fleet includes a 15-seater Beechcraft C-12 Huron. [4]
The XV-15 flight testing continued expanding its flight envelope. It was able to successfully operate in both helicopter and normal aircraft flight modes and smoothly transition between the two. Once the aircraft was considered sufficiently tested, it was returned to Ames Research Center for further testing.