Accession Number : ADD015557

Title :   Safety and Arming System for Tube Launched Projectile.

Descriptive Note : Patent, Filed 13 Dec 91, patented 21 Jul 92,

Corporate Author : DEPARTMENT OF THE NAVY WASHINGTON DC

Personal Author(s) : Chan, Steven N

Report Date : 21 Jul 1992

Pagination or Media Count : 9

Abstract : An inertia element within a projectile is displaced to a retracted position by acceleration of the projectile during launch to unblock displacement of a slider to an armed position in response to subsequent pressurization of a projectile flight motor. Safe separation timers are thereby enabled in response to proper launch to delay pressurization of the flight motor and powering of an explosive firing circuit through switches actuated by said displacement of the slider from a safe position to the armed position. The slider is held in its safe position by an electrically grounded shear wire that is ruptured in response to slider displacement thereby removing a power disabling shunt connection to the firing circuit.

Descriptors :   *EXPLOSIVES, *FIRING CIRCUITS, *PROJECTILES, *PATENTS, ACCELERATION, CIRCUITS, DELAY, DISPLACEMENT, FLIGHT, INERTIA, MOTORS, POWER, PRESSURIZATION, RESPONSE, SEPARATION, SHUNTS, SWITCHES, WIRE

Subject Categories : Ammunition and Explosives
      Guns
      Information Science

Distribution Statement : APPROVED FOR PUBLIC RELEASE