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32.866436,-114.385993 in google maps


kevinlacht

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OK, more thorough research has revealed this image, dated from June 26, 2011:

5BA0C.jpg

The marking in question is about 10 years old, and has not changed by any significant degree. It is also painted on a taxiway, not a runway. Either way, NOT a firing postion.

What is it? Beats me...

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  • 11 months later...

I guess a compensation circle. A place as distant as possible from sources of electromagnetic interference that is used to calibrate magnetic compass on aircraft with the radial spokes marking the headings.

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The landing strip is part of Yuma Proving Ground, a US Army facility where they test weapons and military systems.

In Google Earth history layer, the object has been there since at least 2003. It's a bit weird to a permanent structure like that in the middle of a taxiway though. It looks a bit like a radial VOR navigation beacon that you usually see around airports, but it's also a strange place to put a VOR, and it has 24 spokes, whereas a VOR usually has 36. It has shadows, so it's a construction, not just a painted pattern on the ground.

I'm guessing it might be some sort of radial military radar or navigation aid. It could also be a test target for spy sats. Radial patterns are good for testing resolution and moiré effects on imaging systems.

Edited by Nibb31
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