Interestingly, because trigonometry is the same all over the world, the germans made wiz wheels that are near exact matches to the US ones. Take a look at this edited pic I posted also in the SH3 IS-WAS thread:
Every item of the Submarine Attack Course Fnder MK3 is there:
-Outer ring with inverted scale for target bearing (The white inverted triangle on the magent background, up in the image, is the bow of the U-Boot, where the true course ring must be aligned with) + Transparent layer to represent periscope/Uzo bearing
-Middle wheel for true course of both own ship and target
-Inside wheel for target AOB
-The only thing it adds as extra is the ring for the track angle:hmm:
I bet that the reverse side of this wheel is also nearly exact to the Submarine Attack Course Fnder MK3