Abstract: A missile severance device for severing a structural surface member of a body is constructed of a pair of plate members separated by a collapsible liner member ring. An explosive charge is contained with the volume defined by the pair of plate members and the liner member ring. One of the plate members includes a booster explosive charge that serves to detonate the explosive charge so as to collapse the liner member ring and create a directed jet toward the structural surface member intended to be cut.

Abstract: A control system compensates for temperature dependent propellant burning characteristics by adjusting the chamber volume available to the propellant in an ammunition round. The control system includes a control tube housing, a piston assembly slidably mounted relative to the housing for movement through a drive stroke and being drivingly coupled to a trailing end of the projectile, and components responsive to the temperature of the round for adjusting the length of the drive stroke of the piston assembly in proportion to the temperature and thereby adjusting the position of the projectile and volume of the chamber in proportion to the temperature of the round.