On a recent trip to Spain, my husband and I took a boat tour on the Ria de Bilbao. Along the narrow river we passed a large commercial-looking ship and I noticed day shapes (a pattern of shapes that indicate a vessel’s current status or activity to other nearby ships during the daytime) hanging from the rigging, but I didn’t know what they signified. I have never noticed the placement of these shapes on ships before, but in passing so closely to this ship, I had the opportunity to really see every detail.
Do you know what this configuration of “shapes” means? In this case, the shapes are a circle, triangle, circle.
When I got home I looked up the meaning of these shapes by scrolling to the image of “circle, triangle, circle” on the Weems & Plath LIGHTRule. The LIGHTRule is a handy reference tool that helps you identify lights at night and also identifies day shapes on boats.
Once I found the right pattern, I read the following in the Vessel Definition magnifier, “Vessel Restricted in Ability to Maneuver.”
Check out this video to learn how you can use the Weems & Plath LIGHTRule.