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Cierva Air Horse - a British three-rotor "heavy lift" helicopter first flying in 1948. Three rotors were used to give a large lift without compromising rotor strength. [16] Volocopter designs - a series of German prototype electric multicopters with 18 rotors, the first electric multicopter in the world to achieve crewed flight.
The VVP-6 was to have been fitted with six six-blade rotors mounted on six pylons extending from the craft's sides. Each rotor was to have been driven by four turboshaft engines, giving the VVP-6 a total of 24 engines. [1] The requirement for such a craft ended when the Soviet Air Force failed to put land-based VTOL jets into service. [1]
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] Manned drones or eVTOL as they are called typically multirotor designs powered by batteries gained increasing popularity and designs in the 2020s. [38]
The Messerschmitt-Bölkow-Blohm Bo 105 is a light, twin-engine, multi-purpose helicopter developed by Bölkow of Ottobrunn, West Germany.It was the first light twin-engine helicopter in the world, and the first rotorcraft that could perform aerobatic maneuvers such as inverted loops.
The Bell V-280 Valor is a tiltrotor aircraft being developed by Bell Helicopter for the United States Army's Future Vertical Lift (FVL) program. [2] The aircraft was officially unveiled at the 2013 Army Aviation Association of America's (AAAA) Annual Professional Forum and Exposition in Fort Worth, Texas.
The NH90 was designed to fulfill a NATO staff requirement for a multi-role, medium-sized military helicopter for both land and maritime operations. [44] According to Flight International, the NH90 has the distinction of being the first helicopter in the world to be developed in line with NATO requirements. [ 45 ]
Multi-rotor drones are inherently limited in speed and range compared to fixed-wing drones but have better control and manoeuvrability, including the ability to hover in flight.
The helicopter is expected to have a maximum take off weight of 13 tonnes and will have 24 to 36 crews on board in various configurations. The helicopter will have a five bladed main rotor with a diameter of 21.2 meters and a four-blade tail rotor. MRH will have 75% domestic content but will use an imported 2000 kW turboshaft engine. Payload ...