White, or a very white, light grey, sometimes referred to as Schnellbootweiss (Schnellboat White) for the E-Boats. Dark gray decks if in the Channel.
Could be a pea-greenish if in the Mediterranean for the decks.
You can add gray splotches for a few E-Boats, if you like, on their sides, but most would just be the plain, very light gray/white.
Sorry, can't recall the actual colors for the MTB's/MGB's, but really early variants could be a darker gray than later ones, e.g. probably about a medium-dark gray (not as dark as the deck color for the German S-Boats). Later ones were a lighter gray, e.g. about the color of a medium gray.
Some British boats were also painted in more pastel colors, like very pale green, or greenish-blue.
Again, decks on the British boats would be either dark gray, or navy blue.
scratchbuilds another Victorian flying machine.
