Abstract: There is disclosed a release assembly mounted within a housing member for intaining an antenna assembly under spring deployment compression in a terminal delivery vehicle for delivery by a projectile and wherein the release assembly is comprised of a cover member and a weight member under compressive spring forces to maintain a locking ring spring within a groove of the housing member and wherein upon impact of the TDV the inertia of the weight member against the cover member causes the locking ring spring to be withdrawn from within the groove in the housing member thereby to free the release member from the housing member and thereby permitting activation of the deployment compressive spring forces for deploying the antenna assembly from the terminal delivery vehicle.

Abstract: A projectile and sub-projectile assembly including a centering tube positable within a chamber of the projectile to retain the sub-projectile positioned in the projectile. An expandable locking ring is positionable within the projectile through an opening in the rear of the projectile and engageable with a groove. A tube flange cooperates with the tube and the locking ring to maintain the locking ring within the groove and to fix the tube in a centered position substantially coaxial with the projectile. An expulsion piston arrangement is provided including sub-projectile engagement surfaces and sealing elements to seal the chamber from an expulsion charge chamber having an expulsion charge. Upon ignition of the expulsion charge, hot gases act on the piston which acts on the sub-projectile to disengage a base plug from the projectile to allow expulsion of the sub-projectile.