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Virtual Earth map of Photo Calibration Targets

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THERE ARE DOZENS of aerial photo calibration targets across the USA, curious land-based two-dimensional optical artifacts used for the development of aerial photography and aircraft. They were made mostly in the 1950s and 1960s, though some apparently later than that, and many are still in use, though their history is obscure.
This file contains Targets aligned along 20 miles close to Edwards AFB



 

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