Fascinating that there are air craft relics near the charts. I can only imagine ... | Hacker News

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		SoftwareMaven on Feb 17, 2013 \| parent \| context \| favorite \| on: There Are Giant Camera Resolution Test Charts Scat... Fascinating that there are air craft relics near the charts. I can only imagine that is part of the calibrating: so they can tell how large an aircraft is and what resolution they get for the size.

_djo_ on Feb 17, 2013 [–]

Indeed, plus one of the aircraft is one of only two remaining examples of the X-21 [0]. I suspect the other is also derelict on the range somewhere.

http://en.wikipedia.org/wiki/Northrop_X-21

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