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A quadcopter, also called quadrocopter, or quadrotor [1] is a type of helicopter or multicopter that has four rotors. [ 2 ] Although quadrotor helicopters and convertiplanes have long been flown experimentally, the configuration remained a curiosity until the arrival of the modern unmanned aerial vehicle or drone.
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The Netra is a lightweight UAV, manufactured by carbon fiber composites, that uses quadcopters to provide lift and control giving a VTOL capability. It has no moving parts other than the rotors, motors and transmissions, and hence it requires very low maintenance.
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On 29 September 1907, the Gyroplane No.I was flown for the first time, albeit to an elevation of only 0.6 metres (2.0 ft). [1] It was not a free flight, as four men were used to steady the structure.
Reverted to version as of 18:50, 4 November 2019 (UTC) Diagram update did not fail, it actually just took several minutes to appear. 18:55, 4 November 2019: No thumbnail: 0 × 0 (195 KB) Tigerdude9: Reverted to version as of 20:10, 17 December 2014 (UTC) Update failed. 18:50, 4 November 2019: 806 × 1,237 (215 KB) Tigerdude9: Updated diagram.