Just one year ago, we wrote about the cool Weems & Plath Lightrule, at the risk of repeating, let me quote Aaron’s description of the product:

The Lightrule is a nicely put-together reference tool for interpreting those COLREGS (International Regulations for Avoiding Collisions at Sea) required light arrangements. It’s a kind of slide rule where the sliding piece has patterns representing most any kind of light configuration you might encounter, which line up with little holes in the diagrams on the outside of the rule. A magnifier strip along the edge tells you what you are seeing, and the diagrams show the lights described.

Little known to us at the time, however, that version of the Lightrule contained a minor error, which was spotted by Captain Richard Rodriguez. Read the comments on our original post to learn what the trouble was.

Well, here’s an update: Captain Rodriguez has just reported over on his BitterEnd blog that the error has been fixed!

Honestly, though, it was a very minor error, so don’t feel you need to throw away your old one. Richard can be kind of a curmudgeon about COLREGS sometimes.