[throwawayForMe2]

They should add a section on the language of a ship’s lights at night.

[Animats]

Here's the U.S. Naval Academy's guide to the rules of the road.[1] Section C has the lights. For most ships and boats, it's reasonably simple - red, green, and white visible in 120 degree arcs, with white visible from the rear, plus a high white masthead light for some vessels. The complicated cases mostly involve work boats doing something - fishing, cable-laying, towing, etc.- where there is a hazardous area around the vessel and movements are restricted.

[1] https://www.usna.edu/Sailing/_files/documents/2019_OSTS_Docu...

[oakmad]

I love there is a slide for WIG - wing in ground effect

[_whiteCaps_]

Weems and Plath make a nice tool for that: http://www.weems-plath.com/LIGHTrulesandROADrules/Lightrule....