Is there anything definitive on the colour of the sides (outer) of the P-51B Mustang radiator flap? The vent that lowers at the rear of the fuselage. Searching on the web and BM have drawn a blank.
various possibilities occur to me;
Same as the underside (neutral grey for the plane I'm modelling).
Zinc Chromate, either straight (yellowish) or mixed (interior green).
Silver, either NMF or doped.
Cheers,