Soft and Semisoft Landing Limits of M151 and M53 Military Vehicles

摘要

This study investigates soft and semisoft impact velocity limits of two frequently airdropped, uncushioned and semicushioned, military vehicles. A jeep and 2 1/2-ton truck were tied down to an airdrop platform, raised to various heights, and released. Semisoft impacts were those in which some various heights, and released. Semisoft impacts were those in which some paper honeycomb stacks were slipped between the vehicle frame and platform. Time variation of vehicle acceleration, suspension travel, and bump stop contact were recorded; data for nineteen jeep drops and seven 2 1/2-ton truck drops is presented here. The results of this study provide baseline data for design of a soft or semisoft-landing airdrop platform or airdrop system.