A Buckling Protective Cap for Fuzes with Air Ducts.

摘要

A rubber cap has been developed to act as a barrier against possible moisture and contaminants that could enter the fluidic ports of the XM734 fuze and affect the turbine performance. The cap is designed to be removed automatically by the ballistic environment. The mechanism is a column which, upon setback, is buckled and provides a velocity relative to the projectile that dislodges the cap outside the mortar tube. Field tests performed at several temperatures and muzzle velocities show the feasibility of the proposed design.