For the navigator who has everything they need... and now desires a bit of real luxury. This tool simply divides any interval into ten equally spaced intervals at a simple opening of the dividers — or divides it into 5 equal intervals, or 6, or 3, etc. It is a stainless steel, high quality instrument.
Used for position plotting on small scale charts (such as weather maps), converting seconds scale on a chart to decimal minutes, interpolating depth contours on charts and many other applications. They are especially convenient for plotting positions on weather maps and other weather analysis since the charts show only the 10° parallels.
This tool can also be used to very quickly set up a grid or make graph paper at any chosen decimal scale. If you have such a wonderful tool, you will certainly find many convenient applications for it in the nav station.
For the record: The "10-point" dividers have 11 points(!), which create 10 equal divisions. Nevertheless, they have been historically called "10-points," so we stick with that.
