The Future Tactical Truck System was a United States Armed Forces program for which the Operational Requirements Document was drawn up during 2003. FTTS was a proposed two vehicle modular family that was to replace the AM General High Mobility Multipurpose Wheeled Vehicle, Family of Medium Tactical Vehicles, Oshkosh M977 Heavy Expanded Mobility Tactical Truck, Oshkosh Palletized Load System , and all remaining M35, M809 and M939 series of 2.5 and 5 ton trucks. The FTTS-UV was to replace the HMMWV, while the FTTS-MSV was to replace all other types. By 2006 work on FTTS was faltering and according to the Foreword of Jane's Military Vehicles and Logistics 2006-2007 by Shaun C Connors and Christopher F Foss : "The U.S. Army’s original intention was that the FTTS with just two variants would eventually replace virtually all of the current tactical wheeled vehicle fleet. In a more realistic approach, the current FTTS-MSV/UV Advanced Concept Technology Demonstration efforts will now be used ‘to define requirements’ for future U.S. Army trucks." The Association of the United States Army "Army Tactical Wheeled Vehicle Strategy: Meeting Current and Future Needs" pdf stated that the ACTD for FTTS was taking a two phase approach; the first phase involved modeling and simulation efforts in which multiple vendors presented concepts for technologies to be incorporated into designs for the UV and MSV variants of FTTS. The second phase included awards to three of the M&S contractors to manufacture prototype designs: two contractors to produce their UV version with trailer, and one contractor to produce two MSVs with companion trailers. All vehicles and trailers were to be evaluated in a Military Utility Assessment at Fort Lewis, Washington. The MUA was scheduled to occur during the first and second quarters of FY07, with the results to fed into the requirements development process, this to define future truck requirements. Elements of FTTS-UV ACTD were fed in to the ongoing Joint Light Tactical Vehicle program, this the replacement for part of the HMMWV fleet. On 24 April 2006, establishment of a Joint Program Office to manage the JLTV effort was endorsed. The AUSA pdf file previously referenced stated that: "Following approval, ,the Future Tactical Truck Systems Advanced Concept Technology Demonstration, the PSD , EMIP and various Office of Naval ResearchScience and Technology activities will inform the requirements process, thus ensuring requirements are realistic, achievable and relevant to all services. Deliveries of the medium and heavy category trucks in production when FTTS commenced, and to be replaced by FTTS, continue. The FMTVproduction contract has recently been extended to September 2016, and award of the Family of Heavy Tactical Vehicles IV contract, on a sole source basis to Oshkosh, is anticipated in the near future. FHTV contract awards include HEMTT and PLS.
