Here is a strange coincidence as we were just discussing this subject.
This article on the B-17B to B-17C/D upgrades was just posted on the Aero Vintage forum today.
http://www.aerovintage.com/forum/viewtopic.php?f=1&t=4321
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If man could be crossed with the cat it would improve man, but it would deteriorate the cat.
- Mark Twain
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