I've read that too. The permanent black lacquer for night operations didn't arrive until 1941 and a permanent white winter camouflage lacquer was even later, in 1942, so there is a precedent for non-permanent colours. Many pictures of white aircraft with very blotchy winter camouflage date from the 1941/2 winter in the East. The Germans had no permanent winter camouflage because they hadn't planned on needing one.
I've never found a designation for a non-permanent yellow, though the evidence suggests that units were applying something that came off quite quickly.
Cheers
Steve
I've never found a designation for a non-permanent yellow, though the evidence suggests that units were applying something that came off quite quickly.
Cheers
Steve