Accession Number : AD0802138

Title :   BASIC INVESTIGATION OF THE OPERATION OF PROPELLANT ACTUATED DEVICES IN SPACE ENVIRONMENT. VACUUM PHASE.

Descriptive Note : Technical rept. Jan 63-Mar 66,

Corporate Author : FRANKFORD ARSENAL PHILADELPHIA PA COMPONENTS ENGINEERING DIRECTORATE

Personal Author(s) : Miller, George P.

Report Date : SEP 1966

Pagination or Media Count : 24

Abstract : The study of vacuum effects is phased to the basic investigation of the operation of propellant actuated devices (PAD) in a space environment. PAD were soaked in a 10 to the -6th power torr vacuum for a period of approximately 70 hours, removed and fired in atmospheric environment. Similar items were also soaked at the same vacuum level for approximately 170 hours and fired while still subject to this environment. The results of these tests indicated that PAD will perform properly after having been subjected to a vacuum environment simulating altitudes of over 500,000 ft for periods up to one week. To perform the latter tests, the vacuum machine was modified. A pressure-vacuum work chamber was constructed which could withstand firing forces and contaminates. A special valving system was incorporated that would protect the vital parts during firing. Other features were added, such as viewing ports and mechanical and electrical feed-throughs, all of which made this machine more adaptable to the particular task. (Author)

Descriptors :   *SPACE ENVIRONMENTS), (*EXPLOSIVE ACTUATORS, (*CARTRIDGES(PAD), SPACE ENVIRONMENTS), ENVIRONMENTAL TESTS, SPACE SIMULATION CHAMBERS, VACUUM APPARATUS, VACUUM PUMPS, PRESSURE, PERFORMANCE(ENGINEERING), UPPER ATMOSPHERE, SIMULATORS, FIRING TESTS(ORDNANCE), BAROMETRIC PRESSURE, STAINLESS STEEL, LEAKAGE(FLUID), AEROSPACE SYSTEMS, ESCAPE SYSTEMS.

Subject Categories : Astrophysics
      Ammunition and Explosives

Distribution Statement : APPROVED FOR PUBLIC RELEASE