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The Eurocopter X³ (X-Cubed) is a retired experimental high-speed compound helicopter developed by Airbus Helicopters (formerly Eurocopter).A technology demonstration platform for "high-speed, long-range hybrid helicopter" or H³ concept, [1] the X³ achieved 255 knots (472 km/h; 293 mph) in level flight on 7 June 2013, setting an unofficial helicopter speed record.
Sikorsky developed the X2 helicopter on a $50 million budget. The design includes expertise gathered from several earlier design projects. The S-69/XH-59A Advancing Blade Concept Demonstrator had shown that high speed was possible with a coaxial helicopter with auxiliary propulsion supplied using two jet engines, but that vibration and fuel consumption was excessive; [2] [3] [4] the Cypher UAV ...
The Boeing-Sikorsky team is seen to have an advantage with their large industrial base that may result in wider support from Congress. Their transport helicopters are the most-used in the Army currently. [12] Up to 2013, Sikorsky and partners have spent $250 million on X2 and Raider. [6] The team and aircraft will be separate from the S-97 ...
Fastest helicopter [53] [54] [55] 31 December 1988: L.P. Krantov: 258.8: 415: Tupolev Tu-134A: Highest landing speed for a civil aircraft [56] 11 June 2013: Hervé Jammayrac: 293: 472: Eurocopter X3: Fastest propeller compound helicopter [57] 15 September 2010: Kevin Bredenbeck: 299: 481: Sikorsky X2: Fastest compound helicopter, shallow dive ...
VeloX3, formerly the world's fastest human-powered vehicle. Apollo 17 LRV, fastest vehicle driven on the Moon. ... Helicopter [note 1] 400.87: 249.09: 0.33 Westland ...
The Mi-26 was designed to replace earlier Mi-6 and Mi-12 heavy lift helicopters and act as a heavy-lift helicopter for military and civil use, having twice the cabin space and payload of the Mi-6, then the world's largest and fastest production helicopter.
The Boeing CH-47 Chinook is a tandem-rotor helicopter originally developed by American rotorcraft company Vertol and now manufactured by Boeing Defense, Space & Security.The Chinook is a heavy-lift helicopter that is among the heaviest lifting Western helicopters.
The Mi-6 was by far the world's largest helicopter when it was designed in 1954–56; with a maximum load capacity of 12,000 kg. [2] It was also the world's fastest helicopter; with a top speed of 300 km/h (190 mph). In its early days, the Mi-6 set many world records, including one for sheer circuit speed at 340 km/h (211 mph).