Accession Number : AD0801767

Title :   RELIABILITY STUDY OF MCCORMICK SELPH ASSOCIATES M79, MOD 5, LMSD 1062152-1 SQUIB,

Corporate Author : LOCKHEED MISSILES AND SPACE CO INC SUNNYVALE CA

Personal Author(s) : Christensen, N.

Report Date : 11 FEB 1959

Pagination or Media Count : 9

Abstract : All units functioned, 112 at ambient altitude and 388 at a simulated altitude of approximately 300,000 feet. There were no visible leaks observed in Water Immersion tests. The bridgewire resistance remained within the accuracy of the measuring instrument. The pin to case readings changed from infinite to a range of 1 meg ohm to 10 meg ohm on approximately 8% of the units tested. This is not considered to be harmful and did not effect the functioning of the unit. There was no appreciable change in the bridgewire resistance caused by the vibration test.

Descriptors :   (*EXPLOSIVES INITIATORS, RELIABILITY), ELECTRIC WIRE, MILITARY REQUIREMENTS, ELECTRICAL RESISTANCE, VIBRATION, ZIRCONIUM COMPOUNDS, PRIMERS, FIRING TESTS(ORDNANCE), SIMULATION, HIGH ALTITUDE.

Subject Categories : Ammunition and Explosives

Distribution Statement : APPROVED FOR PUBLIC RELEASE