Kopp–Etchells effect
id:
kopp-etchells-effect-280-15606199
title:
Kopp–Etchells effect
text:
The Kopp–Etchells effect is a sparkling ring or disk that is sometimes produced by rotary-wing aircraft when operating in sandy conditions, particularly near the ground at night. The name was coined by photographer Michael Yon to honor two soldiers who were killed in combat; Benjamin Kopp, a US Army Ranger, and Joseph Etchells, a British soldier. Both were killed in combat in Sangin, Afghanistan in July 2009. Other names that have been used to describe this phenomenon include scintillation, halo
brand slug:
wiki
category slug:
encyclopedia
description:
Corona or halo on the rotor blades of helicopters operating in sandy conditions
original url:
https://en.wikipedia.org/wiki/Kopp%E2%80%93Etchells_effect
date created:
date modified:
2024-03-21T13:47:07Z
main entity:
{"identifier":"Q96386275","url":"https://www.wikidata.org/entity/Q96386275"}
image:
{"content_url":"https://upload.wikimedia.org/wikipedia/commons/9/93/Kopp-Etchells_effect_visible_in_a_CH47_Chinook_helicopter_in_Afghanistan_-_2012.jpg","width":2100,"height":1395}
fields total:
13
integrity:
15