Fuze sterilization system

A safety device for an ordnance fuze in a projectile that is armed by movement of an unbalanced rotor subjected to acceleration forces acting on the projectile, where complete arming of the fuze requires movement of the rotor through a predetermined angle to complete an explosive firing train or trains during projectile travel to the target. Upon the occurrence of an unusual flight condition, for example a sudden deceleration of the projectile, before the predetermined lapse of time necessary to completely arm the fuze, causes explosive actuators to come in contact with the rotor to prevent further angular movement toward the armed position thus causing the projectile fuze to become sterilized or dearmed.