F4U-1, Salmon vs. Zinc Chromate Primer
July 23, 2014 in Aviation
my next project: a Birdcage. I intend to build a badly worn and weathered exemplar and I already investigated historical pictures of it – of course in black and white.
Regarding paint work, some sources talk about salmon colored others about classic yellow-green zinc chromate primer for the early aircraft, later ones were prime coated in zinc chromate only. The pictures attached were taken by Jay Cochrane of a plane found in Lake Michigan in 1995, and finally pulled to the surface on Nov 8,2010. It crashed on June 12 1943. To me it looks as if both coats are on, the green and the pinkish one.
So why would one use two different colors for two different prime coats, one made of zinc chromate the other of zinc chromate with some red pigment added?
Well, in order to ensure that paint has covered every piece of the surface, I guess. I assume that the green one is below the red one. The fact that the red primer survived inside but is almost completely lost outside of the wing might support the theory.
That much about detective work. Can anyone add facts?
All the best and looking forward to your comments.
1 additional image.