Accession Number : ADP002229

Title :   P-Static Flight Evaluation of a Large Jet Aircraft,

Corporate Author : BOEING COMMERCIAL AIRPLANE CO SEATTLE WA

Personal Author(s) : King,C. H.

Report Date : 1983

Pagination or Media Count : 43

Abstract : The use of static dischargers to reduce P-static interference in radios is universal in large modern aircraft. These devices, although they quietly discharge the aircraft, represent drag and weight penalties and can delay dispatch of a flight if dischargers at key locations are missing. Flight tests were conducted on a modern jet transport to determine the location and number of dischargers required for dispatch. Traditionally the minimum complement is based upon engine charging; i.e., only those dischargers required to quietly discharge the current produced by operating the engines in clear air would be required for dispatch. The aircraft was instrumented to measure charging current, discharge current, ADF radio noise and field potential. The data from this instrumentation was recorded on a system which sampled data at a rate of 5 times per second. Data plots obtained during various charging conditions are presented. (Author)

Descriptors :   *Precipitation static, Static dischargers, Transport aircraft, Electrostatic charge, Voltage, Electric current, Noise(Radio), Measurement, Airborne, Symposia

Distribution Statement : APPROVED FOR PUBLIC RELEASE