![]() The T117 was dropped and development on the T113 continued.īoth steel and aluminium are metallic materials, however aluminium is a lighter material because its not as dense as steel so you need three times the thickness of steel to offer the same level of protection as steel. In January 1956, US firm FMC (Food Manufacturing Company) were award the contract to develop two prototypes of the same vehicle (Armoured Personnel Carrier), one constructed of steel (designation T117) and one constructed in aluminium (designation T113). They had to be a simple design so as to be able to accept adaptation for other roles and future upgrades. This obviously meant the vehicle wasn’t heavily armoured so could only withstand 7.62mm fire. The M113’s success started in the 1950’s to meet the requirements set by the US Army for an air-deployable vehicle that was amphibious and had good mobility. With a staggering 76,000 built, the vehicle can be found as the work horse of many mechanised units on every continent in the world and has to be in the top 10 of Armoured Vehicles of all time. The US M113 APC Series & Family Variants has had a huge impact among many of the Armies of NATO members and Western friendly Countries. ![]()
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