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On March 7, 2017, Bell Helicopter presented a conceptual, futuristic looking aircraft. The mock-up presented is configured for eight passengers, but will be capable of accommodating up to 12. [1] On top of the aircraft are five "morphing" main rotor blades which aim to allow the tip of each blade to move between different flight regimes. [2]
Advanced Supersonic Transport (AST) model in wind tunnel. The aircraft design process is a loosely defined method used to balance many competing and demanding requirements to produce an aircraft that is strong, lightweight, economical and can carry an adequate payload while being sufficiently reliable to safely fly for the design life of the aircraft.
The Hiller ROE Rotorcycle is a single-seat ultralight helicopter designed in 1953 for a military requirement. [1] A total of 12 were produced for the United States Marine Corps. And in 1954, the Hiller Helicopters was selected by the US Navy's Bureau of Aeronautics to build this design of a one-man, foldable, self-rescue and observation ...
Tandem-rotor helicopters, however, use counter-rotating rotors, with each cancelling out the other's torque. Therefore, all of the power from the engines can be used for lift, whereas a single-rotor helicopter uses some of the engine power to counter the torque. [1] An alternative is to mount two rotors in a coaxial configuration.
The choice of a rigid rotor meant that the helicopter was more agile than it would have been with a flapping rotor. The performance of the CL-475 encouraged Lockheed to seek further development. Lockheed submitted the CL-475 to the Army as a candidate to replace the Bell OH-13 Sioux and Hiller OH-23 Raven observation helicopters.
Predecessors to OpenVSP including VSP [1] and Rapid Aircraft Modeler (RAM) were developed by J.R. Gloudemans and others [2] for NASA beginning in the early 1990s. [3] OpenVSP v2.0 was released as open source under the NOSA license in January 2012.
The design team planned on payloads ranging from 16 to 26 tons and a range of 420 to 1,000 nautical miles (780 to 1,850 km). [9] One of the design excursions explored, dubbed the "Big Boy", would have 55-foot (17 m) rotors and an 815-inch (20.7 m) cargo bay, making it able to carry one additional 463L pallet and accommodate a Stryker armored ...
The Bell 429 GlobalRanger is a light, twin-engine helicopter developed by Bell Helicopter and Korea Aerospace Industries. The first flight of the prototype took place on February 27, 2007, [4] and the aircraft received type certification on July 1, 2009. [5] The Bell 429 is capable of single-pilot IFR and Runway Category A operations. [6]