Quote Originally Posted by DeRuyter View Post
This is very similar to the signaling system in "Fire as She Bears" rules. The system uses small colored cubes that would be placed next to the signalling ship to represent the flags. The code for each side would be set before the game based on a generic codebook. Colors and combinations of colors could be assigned numbers or commands such as "wear in sucession" or shorten sail. It was loosely based on the English signalling system. There are rules for repeating and responses as well. I will have to dig out the game so I can review the signalling rules. If I recall correctly it was an optional add on to the system, but designed not to slow down the game.

Eric
The system is called Hoist Signals Aloft, it comes with a page of preprinted commands you have to fill before play assigning which color corrosponds with which number so each side can't understand the others signals. It can be downloaded of Wargame Vault but i don't remember how much.