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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.
The H502S, also marketed as the "H502S X4 DESIRE FPV" is a smaller version of the H501S quadcopter and same size as the H502E. Uses brushed motors, has 12 minutes' flight time, 7.4 V (2S) 610 mAh Li-Po battery, GPS Positioning, first-person view (FPV), altitude hold, follow-me mode, 720P High Definition Camera and return to home.
Gyro 200 ED mini-UAV Quadcopter of the Gyrofly Innovations. [46] [47] Gyro 500 Mini-UAV Quadcopter of the Gyrofly Innovations. [48] Harpia This is a medium size tactical UAV of the Harpia Systems (Joint-Venture of the Embraer Defense and Security, AEL Systems and Avibras), [49] [50] halted in January 2016 [51] Hornet H2 UAV of the BRVANT. [40]
Unlike single- and double-rotor helicopters which use complex variable pitch rotors whose pitch varies as the blade rotates for flight stability and control, multirotors often use fixed-pitch blades; control of vehicle motion is achieved by varying the relative speed of each rotor to change the thrust and torque produced by each.
American Eurocopter – founded as Vought Helicopter Inc, now a wholly owned subsidiary of Eurocopter; American Helicopter [10] Aviodyne U.S.A. Bell/Agusta Aerospace Company; Bell Helicopter [44] Bendix Helicopter Company (defunct) [10] Bensen Aircraft Company (defunct) [10] Boeing Rotorcraft Systems (formerly Boeing Helicopters & Boeing-Vertol ...
In November 2012, Traxxas launched its first aircraft products, the ready-to-fly DR-1 Helicopter and QR-1 Quadcopter. [ 5 ] As of April 2023, Traxxas offers a large variety of different kinds of radio-controlled cars, which can be classified into the following types and their respective models:
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