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The Family of Medium Tactical Vehicles (FMTV) is a series of vehicles, based on a common chassis, that vary by payload and mission requirements. The FMTV is derived from the Austrian militarySteyr 12 M 18 truck, but substantially modified to meet U.S. Army requirements, these including a minimum 50 per cent U.S. content.〔(【引用サイトリンク】title=Family of Medium Tactical Vehicles (FMTV) )〕〔(【引用サイトリンク】title=The US Army FMTV Military Truck Family History )〕 There were originally 17 FMTV variants, four 2.5 U.S. ton payload variants designated Light Medium Tactical Vehicle (LMTV) and 13 variants with a 5 U.S. ton payload, these designated Medium Tactical Vehicle (MTV).〔(【引用サイトリンク】title=FMTV )〕 Since the first FMTVs were fielded in January 1996 the family has been expanded and the overall design enhanced considerably. The FMTV was originally manufactured by Stewart and Stevenson (1996-2006), then by Armor Holdings (2006-2007), then by what is now BAE Systems Platforms & Services until 2011. It is currently manufactured by Oshkosh Corporation.〔 ==Development and production history== FMTV's origins trace back to a U.S. Army TRAining and DOctrine Command (TRADOC) requirements document issued in 1983 for a Medium Tactical Truck (MTT), the intended replacement for the in-service 2.5-ton truck. In July 1984 a program to look at a future 5-ton truck procurement to replace in-service 2.5- and 5-ton trucks began. Cost analysis demonstrated that the procurement should be for both 2.5- and 5-ton trucks, and in October 1984 FMTV formally began as a program. The Request For Proposals (RFP) for FMTV was released in 1988. At this time it was expected that around 120,000 trucks would be ordered over three five-year contracts.〔〔 In October 1988, the U.S. Army awarded contracts to Stewart & Stevenson, the Tactical Truck Corporation (a 50/50 joint venture between General Motors Military Vehicles and the BMY Wheeled Vehicle Division of the HARSCO Corporation), and Teledyne Continental Motors for 15 prototype vehicles each, these to be completed by January 1989. In October 1991 a five-year FMTV contract was awarded to Stewart & Stevenson. The initial contract order total was expected to be 20,000 vehicles, but this was reduced to 10,843 vehicles valued at USD1.2 billion. Some options were added and raised the total to 11,197 vehicles over what would be extended to 7 contract years. The first FMTVs were fielded in January 1996.〔〔 In October 1998 Stewart & Stevenson was awarded the second FMTV contract, this for 8,000 trucks and 1,500 companion trailers and with a value of $1.4 billion. Total quantities including options were 11,491 trucks and 2,292 trailers, delivered between September 1999 and October 2004. Trucks were the improved A1 model, with improvements including an uprated engine (1998 EPA compliant) and transmission, and the introduction of ABS. The first A1 models were fielded in July 2000.〔〔 Stewart & Stevenson and Oshkosh Truck Corporation were awarded contracts in April 2001 for the Evaluation Phase (Phase 1) of the FMTV A1 Competitive Rebuy (FMTV A1 CR) program for the next FMTV production contract. Following trials and evaluation, in April 2003 the contract was awarded to Stewart & Stevenson. Production of the FMTV A1 CR (designated FMTV A1R) began in Q3 2004. Improvements to A1R models were numerous and included a new EPA 2004 compliant Caterpillar C7 engine. A total of 21,149 FMTVs and companion trailers were built under the FMTV A1R contract award.〔 In May 2006, Stewart & Stevenson was acquired by Armor Holdings Inc., and in August 2007, Armor Holdings was acquired by BAE Systems. The U.S. Army had intended that the Future Tactical Truck System (FTTS) with just two variants would eventually replace virtually all of its tactical wheeled vehicle fleet including the FMTV. FTTS never materialized, however along with inputs from other efforts it continues to be used to define requirements for future U.S. Army trucks.〔 With FTTS already faltering, BAE Systems was awarded a bridging contract in June 2008 for up to 10,000 FMTVs or trailers, the contract including an option (which was exercised) for 10,000 additional vehicles. In May 2009 BAE Systems, Navistar Defense and Oshkosh Defense each announced they had submitted proposals for the FMTV A1P2 competitive rebuy program to the U.S. Army's Tank-Automotive and Armaments Command (TACOM) Life Cycle Management Command. In August 2009, the U.S. Army announced that Oshkosh Defense had been awarded the FMTV A1P2 rebuy production contract. The award was protested by both BAE Systems and Navistar. The FMTV A1P2 rebuy was awarded as a five-year 'build-to-print' requirements-type award that allowed the U.S. government to order from 0 up to 12,415 trucks and 10,926 trailers through to calendar year 2014. Some FMTV variants are excluded from the rebuy competition, those excluded include specialist FMTV variants such as HIMARS, Patriot, MEADS and LVAD, plus all the armored cabs developed by BAE Systems. According to the U.S. Army (in February 2012) all FMTV work with BAE Systems (minus a small number of armor B-kits) had concluded, BAE Systems and legacy companies having delivered around 74,000 FMTV trucks and trailers to the U.S. Army. U.S. budgetary projections of March 2012 suggested that due to funding constraints the FMTV program would be terminated in FY14. Under the FMTV contract orders could be placed until December 2013, with first deliveries to commence within one year of that, with final deliveries one year later. Contract extensions have been made, the latest to September 2016. The most recently announced FMTV order by Oshkosh was in July 2015, this requesting 698 FMTVs worth $184 million, with deliveries to start in 2016. Since deliveries started in 2010, Oshkosh has received orders for over 24,300 FMTV trucks and 11,400 FMTV trailers.〔 Early 2014 the U.S. Army's Program Executive Officer for Combat Support and Combat Service Support (CS CSS) suggested that the Army would be seeking a new medium truck family in the mid-2020s. FMTVs are currently being reset at the Red River Army Depot on return from deployed operations, and current projections are for a Recap (Recapitalization) program to commence in 2020/2021. 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「Family of Medium Tactical Vehicles」の詳細全文を読む スポンサード リンク
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