HELICOPTER STATIC ELECTRICITY DISCHARGING DEVICE
Abstract
Results are presented on a program for the alleviation of static electricity problems associated with helicopters. During the program a static electricity discharging device for helicopters was designed, built and tested. Flight tests were performed with an H-37 heli copter under a number of different flight conditions. During these flights conducted in a natural charging current of 2 microamperes, the discharging device maintained the electrostatic energy level at below 1 millijoule. It has been established that this energy level satisfactorily alleviates the existing problems caused by the presence of electrostatic charge. Factors affecting the performance of the device are listed, and recommendations are made to optimize future discharger research. Also, a test program was conducted to determine the performance of high voltage corona point probes under varying conditions of vehicle charge and polarity, corona point potential and corona point geometry. The capacitance to ground of H-21 and H-37 aircraft was determined experimentally, as well as the effect of the air velocity on the current output of high voltage corona points.
Document Details
- Document Type
- Technical Report
- Publication Date
- Dec 01, 1962
- Accession Number
- AD0406212
Entities
People
- Juan De La Cierva