Swept stroke lightning and static electric discharges on aircraft windshields and canopies will induce large electrical transient currents into the fragile transparent conductive coatings which are used for anti-icing, de-fogging, and radar cross section control of these transparencies. A test program was conducted to study possible detrimental effects of these transient currents. Representative aircraft transparencies were subjected to laboratory simulated swept stroke lightning magnetic fields and static electric charging. Damage assessment methods included visual inspection with normal and polarized light, electrical resistance measurements of the conductive coating, and thermal inspection using a closed circuit infrared television technique.
Precipitation Static Electricity and Swept-Stroke Lightning Effects on Aircraft Transparency Coatings
1977
64 pages
Report
No indication
English
Aircraft , Coatings, Colorants, & Finishes , Static electricity , Lightning , Protective coatings , Windshields , Aircraft canopies , Transparencies , Precipitation static , Electric discharges , Electric current , Transients , Antifogging agents , Deicing materials , Antiradar coatings , Radar cross sections , Magnetic fields , Damage assessment , Test methods
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