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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 RShG-2 (Russian: Реактивная Штурмовая Граната, Reaktivnaya Shturmovaya Granata, Rocket-propelled Assault Grenade) Aglen-2 (Аглень-2) is a RPG-26 variant with thermobaric warhead.
The company flew its first prototype aircraft – an electrically powered quadcopter that weighed 750 kg (1,650 lb), named VA-X1 [4] – in June 2018 at Cotswold Airport, Kemble, Gloucestershire. [ 5 ] [ 6 ] [ 7 ] The aircraft, which was unmanned and remotely controlled, is capable of vertical take-off and landing ( VTOL ) [ 8 ] and has four ...
Uber (NYSE: UBER) and Lyft (NASDAQ: LYFT) are both synonymous with ride-hailing services. Uber is the market leader in the U.S. and many other countries, while Lyft is an underdog that operates ...
DJI Phantom 1 drone. A multirotor [1] or multicopter is a rotorcraft with more than two lift-generating rotors.An advantage of multirotor aircraft is the simpler rotor mechanics required for flight control.
Drone activity caused officials to close airspace over one of the United States’ most critical Air Force bases for almost four hours late Friday and early Saturday, according to a base ...
By 1970 the company was the US's largest seller of airplane fuel—about 300 million gallons a year—and a publicly traded company on the American Stock Exchange. [7] After some restructuring, and in the face of its accumulated diversity of services, in 1974 the company was renamed "Butler International" and the aviation division made a ...
Today's NYT Connections puzzle for Friday, December 13, 2024The New York Times