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Rotorcraft generally include aircraft where one or more rotors provide lift throughout the entire flight, such as helicopters, gyroplanes, autogyros, and gyrodynes Compound rotorcraft augment the rotor with additional thrust engines, propellers, or static lifting surfaces. Some types, such as helicopters, are capable of vertical takeoff and ...
The aircraft also had wings and a propeller mounted on the rear of the fuselage between twin tailbooms with two small rotors mounted at the end for yaw control. The second prototype of XV-1 became the world's first rotorcraft to exceed 200 mph in level flight on 10 October 1956. No more were built and the XV-1 project was terminated in 1957.
Hillman Helicopter [52] Hughes Aircraft [53] Kaman Aircraft [54] Lockheed Martin – formerly Lockheed Aircraft [24] MD Helicopters – formerly McDonnell Douglas Corp [55] Piasecki Aircraft; Piasecki Helicopter – acquired by Boeing and became Boeing Vertol [39] Revolution Helicopter Corporation (defunct) – went out of business in November ...
Most-produced Western helicopter; nicknamed "Huey". UH-1Y derivative in production. 1959–1976 Bell 206 Jetranger: 8,460: manufactured at Bell plants in United States and Canada: Also made under licence by Agusta in Italy and Commonwealth Aircraft Corporation in Australia: 1966–2010 Eurocopter AS350: 7,000 + [1] France: Airbus Helicopters ...
The Helicycle is a single-seat, semi-rigid two-bladed main rotor, helicopter powered by a Solar T62-32 engine. Manufactured by Helicycle Ventures LLC in Mesilla, New Mexico as a kit, the aircraft is intended to be assembled by the owner and is considered a homebuilt aircraft.
Abrasion strips on helicopter rotor blades are made of metal, often titanium or nickel, which are very hard, but less hard than sand. When a helicopter flies low to the ground in desert environments, sand striking the rotor blade can cause erosion. At night, sand hitting the metal abrasion strip causes a visible corona or halo around the rotor ...
However, the rear rotor works in the aerodynamic shadow of the front rotor, which reduces its efficiency. This loss can be minimized by increasing the distance between the two rotor hubs, and by elevating one hub over the other. [4] [5] Tandem-rotor helicopters tend to have a lower disk loading than single-rotor helicopters. [6]
This is a list of rotorcraft, including helicopters, autogyros, rotor kites and convertiplanes. ... Human-powered aircraft (HPA) Unmanned aerial vehicles (UAVs ...