Hi,
Can anybody help me - what was the right colur for insided of fabric covered US interwar machines like Curtiss F11/BF2C, Douglas O-38 etc... I think (or rather I guess) that metal tubing was in zinc chromate but waht was a colour of fabric? In UK was red due to impregnation, similar red can be seen on Me 323 colour photos - the repaired places are red. So perhaps also red?
Cheers
J-W