Abstract: An arrangement used in safing and arming a munition device. The pressure sensor responds to pressure generated by igniting propellant of the munition and displaces from a first to second position. The power supply responds to setback of the munition to generate an electrical voltage. The light-emitting device responds to the electrical voltage. The photosensitive device connected to the power supply is powered by generation of the voltage and responds to receipt of light energy. An electro-explosive actuator connected to the photosensitive device is operable in response to electrical energy to actuate a rotor of the munition fuze from an unarmed condition to an armed condition. A fiber optic routing element defines a light transmission path from the light-emitting device to the photosensitive device via the pressure sensor.

Abstract: An arrangement used in safing and arming a munition fuze includes a light sensor, a magnet, and a circuit composed of an inductor coil, a storage capacitor, and a photosensitive device. The light sensor is a fiber optic cable which responds to a flash of light generated by burning propellant of the munition by receiving and guiding the light energy to the photosensitive device. The magnet responds to setback of a projectile of the munition to move relative to the coil and generate an electrical voltage. The photosensitive device connected to the inductor coil responds to the voltage generated and to receipt of light energy from the light sensor by conducting electrical energy. An electro-explosive actuator connected to the photosensitive device is operable in response to conducting of electrical energy to actuate a rotor of the munition fuze from an unarmed condition to an armed condition.

Abstract: A projectile base plug with enhanced separation capability has a body which fits into an end of a spinning projectile casing and drag-producing vanes being spaced apart about the circumference of the object and pivotally mounted thereto for movement between stowed and deployed positions. Upon ejection of the base plug from the projectile casing, the vanes are released from stowed positions within the aerodynamic outline of the base plug where they have no substantial effect on the flight of the projectile, to deployed positions by centrifugal force generated by the spinning body where they project into the air stream and produce drag on the ejected base plug.