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Influence of Lightning and Static Electricity as Applied to Helicopter Design
ISSN: 0148-7191, e-ISSN: 2688-3627
Published February 01, 1970 by SAE International in United States
Annotation ability available
As recently as 1968, there was not a single case on record of lightning striking a helicopter, and it was difficult to obtain funds to support research toward development of lightning protection.
This situation changed in 1969-1970. One helicopter was destroyed by a lightning strike with loss of life; another was hit on the ground with substantial blade damage. So the interest in lightning and static electricity lost somewhat its “academic only” stamp.
This paper reviews three basic domains of static electricity affecting the helicopter, namely:
Protection of the rotor blade against the effects of lightning strike.
Cargo hook operation and, connected with it, the problem of active equalization of potential between the cargo and the cargo handler.
Passive static electricity dischargers as a method to radio interference reduction.
All three domains affect the whole blade design with emphasis on the design of the blade tip.
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CitationSolak, B., "Influence of Lightning and Static Electricity as Applied to Helicopter Design," SAE Technical Paper 700928, 1970, https://doi.org/10.4271/700928.
- Uman M. A. “Lightning.” New York McGraw Hill Co.
- “Lightning Effects to Non-Metals.” Boeing Rpt. D624398
- “Lightning Research.” J. Franklin Inst. June 1967
- Solak B. J. “The Influence of Lightning and Static Electricity on Helicopter Design.” February 1965
- Rogers M. E. “Interim Report Reviewing the Present Position on Helicopter Static Electrification Hazards.” RAE Rpt. 67292 November 1967
- Brook M. Holmes C. R. Moore C. B. “Lightning and Rockets: Some Implications of the Apollo 12 Lightning Event.” Naval Research Reviews April 1970
- Born G. Creed R. Sharkoff E. Durbin E. J. “The Electrostatic Charging and Discharging Phenomena of Helicopters in Flight.”
- Tanner R. L. Nanevicz J. E. “Tests of Ortho-Decoupled Aircraft Static Dischargers.” Stanford Res. Inst.
- Stahmann J. R. Robb J. D. “Lightning Susceptibility of HH-43B Helicopter Blades.” March 1970
- Stahmann J. R. “Lightning Vulnerability Measurements on Selected Wheels and Non-Metal Helicopter Rotor Blades and Hub Assemblies.”
- Becher M. C. “Investigation of C-54A Electrostatic Charging and of Active Electrostatic Discharge Capabilities.” USAAVLABS Tech. Rept. 69-90 U. S. Army Avionics Material Lab.
- Breland, J. G. Jr. Quinlivan J. T. Kuo C. J. “Lightning Protective Coatings for Boron and Graphite Fiber Reinforced Plastics.” SAE Transactions 79 1970 700936