The Kopp-Etchells Effect
November 21, 2009 1:42 PM Subscribe
posted by krautland (33 comments total)
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Stunning pictures by Michael Yon show what happens when helicopters land in dust storms: The Kopp-Etchells Effect
is thought to be the result of static electricity created by friction as materials of dissimilar material strike against each other, in this case titanium/nickel blades moving through the air and dust, but a precise definition is as of now not known.
Von reports most pilots were unable to provide him with a satisfying explanation for why this occurred but within the comments at the end of the article some speculate this could be related to Triboelectric effect
or the nature of the sand crystals in the dust.