Accession Number : AD0850964

Title :   ASROC Digital Range and Airframe-Separation Programmer,

Corporate Author : NAVAL WEAPONS CENTER CHINA LAKE CA

Personal Author(s) : Beran, Rodney D.

Report Date : MAR 1969

Pagination or Media Count : 60

Abstract : This report describes the design and operation of a prototype digital range and airframe-separation programmer (RASP) designed, built, and tested by the Naval Ordnance Test Station, China Lake, for use with the ASROC missile. RASP is that portion of the ASROC ignition and separation assembly (ISA) which programs target range and airframe separation for payload delivery to a point where an enemy submarine has been spotted. The payload is a torpedo attached to a parachute. Prior to launch, the velocity, needed for the missile to attain the range of the target, and the airframe-separation actuation time are computed and programmed into the RASP. The RASP integrates acceleration to obtain the velocity needed for thrust cutoff and also initiates airframe separation and ISA jettison when the programmed time has elapsed, thus deploying the parachute and lowering the torpedo into the water. The digital RASP is being developed as a possible replacement for the analog RASP currently used with ASROC. (Author)

Descriptors :   (*ANTISUBMARINE AMMUNITION, SURFACE TO UNDERWATER), (*UNDERWATER ROCKETS, COMPUTER PROGRAMMING), ANTISUBMARINE WARFARE, COMMAND GUIDANCE, SEPARATION, CONTROL SEQUENCES, SEQUENCE SWITCHES, SWITCHING CIRCUITS, COMPUTER LOGIC, LOGIC CIRCUITS, FIRING CIRCUITS, RELAXATION OSCILLATORS, CONTROL PANELS, WIRING DIAGRAMS.

Subject Categories : Computer Programming and Software
      Undersea and Antisubmarine Warfare
      Ammunition and Explosives

Distribution Statement : APPROVED FOR PUBLIC RELEASE