Accession Number : AD0600053

Title :   ENVIRONMENTAL EVALUATION OF THE MODULATED CARRIER WAVE, TUMBLING-AIRFOIL, CRASH POSITION INDICATOR.

Corporate Author : RESEARCH AND TECHNOLOGY DIV EGLIN AFB FLA DETACHMENT 4

Personal Author(s) : Reierson,V. L.

Report Date : APR 1964

Pagination or Media Count : 42

Abstract : Laboratory environmental tests were accomplished on a modulated carrier wave, crash position indicator (CPI) beacon during October, November, and December 1963. These tests included low and high temperature, high altitude, humidity, salt spray, vibration, shock, and life tests. Temperatures from -54 C to +65 C and simulated altitudes to 80,000 ft were used. The beacon survived all tests without permanent deterioration or damage. Temporary deterioration of beacon performance did occur at extremely low temperatures; however, beacon performance recovered completely at ambient temperature. The beacon was tested at and is considered acceptable for storage from -54 C to +65 C to 80,000 ft and for operation from -35 C to +65 C at altitudes to 50,000 ft under the humidity, salt spray, vibration, and shock impact conditions specified in MIL-T-5422E. Recommendations are made for increased quality control by the manufacturer and for operational utilization of a limited number of CPI's on jet aircraft to determine the effects of long term storage under jet aircraft operating conditions. (Author)

Descriptors :   (*RESCUE BEACONS, ENVIRONMENTAL TESTS), (*RADIO BEACONS, AIRCRAFT EQUIPMENT), SURVIVAL(PERSONNEL), ELECTRONIC EQUIPMENT, TOUGHNESS, RELIABILITY (ELECTRONICS)

Distribution Statement : APPROVED FOR PUBLIC RELEASE