LIGHTER, AMPHIBIOUS, RESUPPLY, CARGO, 15-TON (LARC-XV)

This report contains the results of engineering tests conducted on the LARC-XV-IX. The objective of the tests was twofold 1 to determine the adequacy of modifications incorporated after completion of the original engineering tests performed by the contractor and 2 to determine whether the modifications comply with the military and technical characteristics. The tests conducted on the LARC-XV-IX were divided into three main categories static, performance in water, and performance on land. In addition, supplemental tests were conducted to determine 1 the LARCs dynamic stability, 2 the adequacy of the gydrqulic system, 3 the degree of torsional vibration, and 4 the engine horsepower. Testing was not as complete as was desired because of weather and lack of time. The mofifications to the LARC-XV prior ot the supplemental tests proved satisfactory. Also, subsequent modifications for stability and for hydraulicsystem reliability appeared satisfactory although the usual 1,000-hour test was not completed. Therefore, it is concluded that the production design for the LARC-XV, based on these modifications, will meet most of the military and technical characteristics.