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:''For an overview of the whole Huey family of aircraft see Bell Huey family'' The Bell UH-1Y Venom〔( DoD 4120-15L, ''Model Designation of Military Aerospace Vehicles'' ). US DoD, 12 May 2004.〕 (also called Super Huey) is a twin-engine, medium-sized utility helicopter, built by Bell Helicopter as part of the United States Marine Corps' H-1 upgrade program. The helicopter is also called ''Yankee'' for its variant letter, Y.〔 〕 The UH-1Y is currently in full-rate production to replace the USMC's aging fleet of UH-1N Twin Huey light utility helicopters first introduced in the early 1970s. The UH-1Y was to have been remanufactured from UH-1Ns, but in 2005, it was approved for the aircraft to be built as new.〔("UH-1Ys to be built new starting in 06" ). US Navy, 22 April 2005.〕 ==Development== In 1996, the United States Marine Corps launched the H-1 upgrade program by signing a contract with Bell Helicopter for upgrading 100 UH-1Ns into UH-1Ys and upgrading 180 AH-1Ws into AH-1Zs.〔Donald, David. ''Modern Battlefield Warplanes''. AIRTime Publishing, 2004. ISBN 1-880588-76-5.〕〔Bishop, Chris. ''Huey Cobra Gunships''. Osprey Publishing, 2006. ISBN 1-84176-984-3.〕 The H-1 program created completely modernized attack and utility helicopters with considerable design commonality to reduce operating costs. The UH-1Y and AH-1Z share a common tail boom, engines, rotor system, drive train, avionics architecture, software, controls and displays for over 84% identical components.〔(Bell UH-1Y pocket guide ). Bell Helicopter, March 2006. Retrieved: 20 January 2010.〕〔(''Rotorbreeze Magazine'' ). Bell, October 2006.〕 Over the years new avionics and radios, in addition to modern door guns and safety upgrades, have greatly increased the UH-1N's empty weight. With a maximum speed of approximately and an inability to lift much more than its own crew, fuel and ammunition, the UH-1N, while useful, is limited in its utility. The Y-model upgrades pilot avionics to a glass cockpit, adds further safety modifications and provides the UH-1 with a modern FLIR system. However, the biggest improvement is an increase in engine power. By replacing the engines and the two bladed rotor system with four composite blades the Y-model will return the Huey to the utility role for which it was designed. Originally the UH-1Y was to have been remanufactured from UH-1N airframes, but in April 2005 approval was granted to build them as new helicopters.〔〔Bruno, Michael. ("Wynne Approves Buy Of New UH-1Y Hueys" ). Aviation Week, 25 April 2005.〕 The Y-model updates an airframe that has been central to the Marine Corps aviation in Iraq. The Huey has many mission requirements including command and control (C2), escort, reconnaissance, troop transport, medical evacuation and close air support. Typically detachments of 2–4 Hueys have been deployed with detachments of 4–8 Cobras. The forward mounted weaponry of the Cobra combined with the door guns of the Huey provides a 240° field of fire. Bell delivered two UH-1Ys to the U.S. Marine Corps in February 2008.〔("Bell H-1 upgrade program delivers two UH-1Y and one AH-1Z in February" ), Bell Helicopter, 3 March 2008.〕 As of September 2009, the UH-1Y is in full-rate production, with the Marine Corps expected to have 21 by the end of the year. The Marine Corps plans to eventually buy 160 of the Y-models to replace their inventory of N-models,〔Butler, Amy. ("U.S. Marines Propose AH-1Z Production Boost" ) ''Aviation Week'', 13 October 2010. Retrieved: 13 October 2010.〕 with aircraft deliveries to be completed by 2016. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Bell UH-1Y Venom」の詳細全文を読む スポンサード リンク
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