Missiles and space launched projectiles have skin temperatures which disfavor electronic component heat sinking. Active cooling often requires the storage of gases, pumps and control systems which are costly, have high entropy, consume energy, and require large amounts Of space. Space based lasers, radiation weapons, rale accelerators, And pop up devices often require cooling to maintain reliability. The phase I study will identify the common thermal requirements Associated with space based electronics. It will evaluate the cooling capabilities of a patented passive thermally conductive composite Fabric heat sink which absorbs heat by physical chemistry. The fabric heat sink can be design specified to act as a temperature rise retardant or a heat pipe, circumventing the need for active cooling systems. Based upon data analysis of common needs, generalized design and material recommendations will be made with the selection of A candidate for phase III prototype development. The new cooling technology has broad applications wherever heat impacts performance.