A helicopter's amazing halo effect named after fallen soldiers (VIDEO + Pics) :: Guns.com
Kopp-Etchells Effect – Unsightly Mental Blemishes
Fox News - The Kopp-Etchells effect, pictured here in the desert in Afghanistan, is named after two fallen soldiers. The story of how one mother finds comfort in the "halo" effect: http://tinyurl.com/q6tae5e
Dust sparks as it hits the rotor blades of a Blackhawk helicopter. This is known as the Kopp-Etchells effect. : r/Helicopters
The Kopp-Etchells Effect, on Dispatch from the Razor's Edge
The Kopp-Etchells Effect, on Dispatch from the Razor's Edge
Mesmerizing halo effect caused by blades of landing combat helicopters named in honor of two fallen soldiers | Daily Mail Online
MANDELA Kopp Etchells Effect - Helicopters - NeEd InPuT/Amy/Sun And Moon Part 2 - YouTube
Kopp–Etchells effect - Wikipedia
Kopp-Etchells Effect – Unsightly Mental Blemishes
Kopp–Etchells effect - Wikipedia
Kopp–Etchells effect - Wikipedia
Helicopter Rotor Galaxy-Like Visual Effect Explained - Core77
The Beautiful Science of Helicopter Halos | Discover Magazine
How a Combat Photographer Named a Phenomenon to Honor Soldiers | PetaPixel
NASA is about to land a helicopter on Mars that might glow in the dark | New Scientist
![Spansen: Kopp-Etchells Effect Seen On IAF's Mi-17's Rotor Blades [Image Of The Day]](https://1.bp.blogspot.com/-fwK1_o-YKK8/XqLzBlQmw_I/AAAAAAAAOVk/5Ny23swPEX0wxrCyKS8ETqrhsP442i77QCLcBGAsYHQ/s1600/Kopp-Etchells%2BEffect%2BIndian%2BAir%2BForce%2BALH%2BDhruv%2B-%2B01.jpg "Spansen: Kopp-Etchells Effect Seen On IAF's Mi-17's Rotor Blades [Image Of The Day]")
Spansen: Kopp-Etchells Effect Seen On IAF's Mi-17's Rotor Blades [Image Of The Day]
The Kopp-Etchells Effect, on Dispatch from the Razor's Edge
Using Dust Control to Prevent Brownouts and Kopp-Etchells Effect – Soilworks
One of the coolest helicopter night pictures, ever! Showing the famous Kopp-Etchell's effect. - The Aviationist
The Kopp-Etchells Effect - Airline Pilot Central Forums
How a Combat Photographer Named a Phenomenon to Honor Soldiers | PetaPixel
The Beautiful Science of Helicopter Halos - Scientific American Blog Network
The Beautiful Science of Helicopter Halos | Discover Magazine
Using Dust Control to Prevent Brownouts and Kopp-Etchells Effect – Soilworks
