Trafficability probe testing in sand and clay targets

In September 1981, a series of tests were conducted at the Marine Base, Camp Pendleton, California, using an air gun to launch instrumented penetrators into sand and clay targets. The purpose of the tests was to collect penetrator deceleration and structural response data along with soil information and to assess the feasibility of establishing the type and strength of the soil encountered from the measured data. 6 refs., 43 figs., 16 tabs.