Fellas, I need some help here.
I've seen many films on the History channel about submarines and u-boats as they are being launched and underwarter shots.. None of them seem to have a painted lower hull with a waterline as I've seen many of the subs show their lower hulls while surfacing fast enough to raise the bow above the water.
Yet, many display models show a painted waterline. Does anyone know if the subs really had dual colors on the hull to show a waterline or is it just for displays.?
TIA