Army Sustainment VOLUME 46, ISSUE 5 | Page 17

An M1075 palletized load system truck and an M915 line-haul tractor are equipped with add-on kits that transform the vehicles to be fully autonomous. (Photo by Bruce Huffman) assigned missions remotely using one operator control unit. Autonomous ground resupply technologies have several potential benefits: †† Reduce constraints related to Soldier endurance. †† Reduce Soldiers’ exposure to vehicle accidents. †† Increase logistics efficiencies and throughput capabilities. †† Reduce vehicle fuel consumption through resupply efficiencies. †† Expand options for delivery frequency. Imagine a 12-vehicle convoy comprising three gun trucks, eight sustainment vehicles, and one recovery vehicle. This convoy currently requires at least 27 Soldiers. The implementation of AMAS will potentially reduce this requirement to as few as nine Soldiers. Additive Manufacturing Additive manufacturing (AM), also known as 3-D printing, employs computer-aided design and computer-aided manufacturing capabilities to create objects through deposition, or layer-by-layer printing. Although currently being used in a small commercial sector, AM is being proposed as a near-term solution throughout the Department of Defense for producing certain replacement parts at the point of need. AM allows organizations to produce spare parts, supplies, and other required fabrications to improve logistics metrics and operational readiness to support requirements at the strategic, operational, and tactical levels. The objective of AM is to rapidly produce materiel to meet requirements at the point of need, thus reducing the flow of demand back through the entire supply chain. AM machines that produce plastics are already available at Army depots, and the Rapid Equipping Force has already developed a mobile capability that is in use in Afghanistan. AM systems for plastics and polymers are relatively well-developed compared to metal systems and can be further employed throughout the Army sustainment system today, provided the right technical data is available for parts, user controls, and materials. Advanced AM capabilities for metallic components are relatively new but progressing rapidly. Large AM systems (for example, the Renishaw AM250 laser melting machine) have already been proven to have the capability to produce limited metallic SEPTEMBER–OCTOBER 2014 15