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The blue myth comes from some original colour pictures that were published from the late '60s or early '70s... . The orignal negatives had been developed badly and the green reproduced as blue.
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I believe the idea for blue camouflage came from reports from people on the ground, specifically the Royal Observer Corp who said that these machines had blue on them.
Jessica, Russell:
I completely agree. Here is why. At the risk of being critical of a researcher that I otherwise have the utmost respect for, Mr. Dana Bell, who has written that he
never questions the word of a WW2 vet, I believe that the Royal Observer Corp simply reported what they saw, without any analytical or corroborating evidence; after all, we have countless eye-witness accounts from trained observers of evens that did not happen (i.e., B-17 crews reporting 'a battleship blowing apart', etc.; and other strange, now refuted sightings, i.e., overall red Zeros).
I used to fly with the son of the curator of the National Museum of the United States Air Force, who told me of the acrimony concerning the blue "Bottisham Four" planes. These 'blue' P-51s are immensely popular with modelers and warbird enthusiasts (the P-51s restored and flown from Fort Wayne, Indiana in the late 1980s were all painted like this -- I wish I could find my photos of them). National Museum of the United States Air Force used to get lots of inquiries about the 'blue P-51s' and finally put the matter to rest: they not only developed color photos from the original negatives and performed analysis of those negatives, but they also had the surviving members of the photographed "Bottisham Four" flight sign affidavits attesting to them being painted O.D.
Steam locomotives in the color film era were predominately black. However, a black metal surface surprisingly reflects the sky very well, and under a sunny sky will look blue as seen here:
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That magnificent beast was shot by me with a digital camera in 2002.
The atmosphere can play tricks with color refraction. As to how an aircraft might reflect the sky, look at this flight of warbirds taken over central Illinois a few years ago. Note the blue reflection on the vertical stabilizers of the P-51 and F-86, as well as their fuselage flanks. I contend that the O.D. "Bottisham Four" planes demonstrate this phenomena and that is probably why ground observers recorded them as blue, without any follow up.
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