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Kopp Etchells Effect

Kopp Etchells Effect

Helicopters and the Kopp-Etchells effect

Helicopters and the Kopp-Etchells effect

The Kopp-Etchell effect in Afghanistan.

Mysterious Dancing Lights In Afghanistan

The Kopp-Etchell effect in Afghanistan.

One of the coolest helicopter night pictures, ever! Showing the famous Kopp-Etchell's effect.

One of the coolest helicopter night pictures, ever! Showing the famous Kopp-Etchell's effect.

Great capture of the Kopp-Etchells Effect on the rotors of a MV22 Osprey.

Great capture of the Kopp-Etchells Effect on the rotors of a MV22 Osprey.

U.S. Army CH-47 Chinook helicopter loading troops at Ab Band in Afghanistan kicks up some Kopp-Etchells effect

U.S. Army CH-47 Chinook helicopter loading troops at Ab Band in Afghanistan kicks up some Kopp-Etchells effect

Rotor sparks 3 -  "The Kopp-Etchells Effect." Tap the image to read the story about the origins of this title

Mysterious Dancing Lights In Afghanistan

Rotor sparks 3 - "The Kopp-Etchells Effect." Tap the image to read the story about the origins of this title

the Kopp-Etchells Effect on a CH-47 Chinook Helicopter.   It is caused by sand hitting the titanium and nickel abrasion strips on rotor blades and eroding their surfaces. The cloud of tiny metal particles spontaneously ignites in the air (a “pyrophoric oxidation of eroded particles“), creating a visible corona.  Photo - Michael Yon

How a Combat Photographer Named a Phenomenon to Honor Soldiers

the Kopp-Etchells Effect on a CH-47 Chinook Helicopter. It is caused by sand hitting the titanium and nickel abrasion strips on rotor blades and eroding their surfaces. The cloud of tiny metal particles spontaneously ignites in the air (a “pyrophoric oxidation of eroded particles“), creating a visible corona. Photo - Michael Yon

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