By Bill Norton
Bell/Boeing V-22 Osprey: Multi provider Tilt-rotor КНИГИ ;ВОЕННАЯ ИСТОРИЯ Bell/Boeing V-22 Osprey: Multi carrier Tilt-rotorByBill NortonPublisher:Aerofax2004 128 PagesISBN: 1857801652PDF120 MBThis joint Bell and Boeing undertaking used to be confirmed in 1982 in accordance with the Joint providers complicated Vertical elevate application protecting a large functionality envelope and a number of projects. the reply got here within the type of the V-22 tilt-rotor, an idea validated previous by means of Bell with their 1977 XV-15. The shipping plane kind fuselage of the V-22, capable of hold 24 troops, is crowned via a wing with a fancy flap/aileron approach and swivelling pods housing Rolls-Royce turboshaft engines, every one riding huge, immense three-bladed prop-rotors. The XV-22A prototype first flew on 19 March 1989 and was once by means of 9 additional prototype and improvement plane. The goal used to be that the USAF may obtain the CV-22B for unique missions paintings, the united states Marine Corps the MV-22B attack transports and the united states military the HV-22B CSAR/fleet logistics model, however the technologically demanding application has been set again through deadly injuries and an eighteen month grounding whereas flight issues of safety have been addressed. despite the fact that, it truly is set to recommence a constrained improvement software making sure that the creation airplane will start to be added on the finish of 2003 and achieve preliminary working potential by way of 2005 making the timing of this complete new publication at the airplane, so much apposite. letitbit sharingmatrix eighty five
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Extra resources for Bell/Boeing V-22 Osprey: Multi Service Tilt-rotor
A turboshaft engine in the 5,700shp (5,250kW) class appeared to be required for a twin-engine JVX to meet the SEMA and SOF missions. However, available engines met only the less-demanding Marine requirements. Fortunately, such a power plant was the hopeful outcome of the Army's Modern Technology Demonstrator Engine (MTDE, later just MTE) program. 14kg/hr/kW) at a sea level cruise power setting of 3,000shp (2,240kW). To achieve this performance, high inlet turbine temperatures and pressure ratios were set as goals.
1 % were eventually accepted. Analysis, wind tunnel, and later on-aircraft ground vibration trials soon provided a design that negated aeroelastic instabilities. The aerodynamic tests optimized the configuration and sought to reduce rotor- and airflow-induced vibration. The Osprey was planned to become the first combat aircraft to have nearly all of its primary structure built of composites. Initially limited only to the wing, fuselage and tail, the effort to cut weight, increase crashworthiness, survivability and water flotation saw the nacelles and proprotors also become composite components.
This saw the engines tilted through their full are, the ramp operated, and the nose gear cycled. Assembly was essentially completed in May and firstflight was expected during the summer with initial deliveries by still set for late 1991. By the beginning of 1988 the manufacturers were already aware that the aircraft would exceed the guaranteed empty weight and redoubled their weight reduction efforts. Weight growth is not unusual during aircraft development and expectations were that the V-22 would be at least 1,200 lb (544kg) heavy, with an associated impact to specified performance.