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An intermeshing-rotor helicopter (or synchropter) is a helicopter with a set of two main rotors turning in opposite directions, with each rotor mast mounted with a slight angle to the other, in a transversely symmetrical manner, so that the blades intermesh without colliding.
A manned multirotor helicopter that was flying in the 2010s had 18 electrically powered rotors; the single seat aircraft is powered by batteries. [36] The first aerobatic manned drone, as this type of electrically powered multi-rotor helicopter is known, had 12 rotors and could carry 1-2 people. [37]
The helicopters shown above are one-off prototypes built by Petter Muren. None of these helicopters are for sale, however, the Proxflyer rotor system is licensed to Interactive Toy Concepts. [1] The company’s R/C helicopters, which include Bladerunner and Micro Mosquito, [2] are all based on the Proxflyer rotor design. The Bladerunner is ...
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 ...
A coaxial-rotor aircraft is an aircraft whose rotors are mounted one above the other on concentric shafts, with the same axis of rotation, but turning in opposite directions (contra-rotating). This rotor configuration is a feature of helicopters produced by the Russian Kamov helicopter design bureau .
The Rotorfly R-30 helicopter is a coaxial helicopter with two two-blade fiberglass rotors. The control rods of the upper main rotor are located inside the shaft which reduces turbulence, It has been described as a hingeless teetering blade mount. [2] The aircraft claimed to be very quiet in general. [5]
Tail rotor blades can be made with both symmetrical and asymmetrical airfoil construction. The pitch change mechanism uses a cable control system or control tubes that run from the anti-torque pedals in the cockpit to a mechanism mounted on the tail rotor gearbox. In larger helicopters, the pitch change mechanism is augmented by a hydraulic ...
As there is a low rotor clearance at the aircraft front, it is approached from the rear when the rotors are turning. Due to the limitations of the Ka-26, USSR and Romania agreed under the Comecon trade to build a single-turboshaft engine version, the Kamov Ka-126 , with better aerodynamics and range.