I finally made my own 'hardcopy' version of the KM Angriffscheibe yesterday from Hitman's files. Although Joegrundman and OLC put one also in their mods, there's nothing better than holding one in your hands and using it, IMHO.
I have a question about one of the pointers. On the side with the compass wheels there is the pointer used for setting scope bearing, IIRC "Angriff kurs". (attack course, or perhaps attack bearing) On it are 2 symbols, one on either end of the pointer. The text "Vorh. Bug" on one side indicates it has to do with the bow (of Uboot or target i don't know), and the other with the stern "Vorh. Heck". Does anybody have an idea how both symbols/texts fit into the use of these disks. When should one use the bow-side as scope bearing, and when the other. I suspect it has to do with bow and stern torpedo shots. But I can't quite figure it out.
Something in the handbuch/manual v2 I would like to make a remark about. Page 9, Example 3 Sorry, I couldn't make a good copy of that page, provided text only to show what it's about. Check the manual for uboot-target drawing.
Quote:
1. Place the A disc with 180° at the top.
2. Turn the B disc until your true course (195°) is aligned with the 180° triangle mark on disc A.
3. Move the transparent D rotor to the target’s bearing (135°) on the A disc.
4. Rotate the C disc so it intersects the D transparent pointer at the estimated AOB (30° port).
5. Read the target's course from the B disc where the C disc index points. The target’s course is 180°.
6. To find your perpendicular intercept course read where the perpendicular line on the C disc points to the B disc. Since the target is off our starboard (right) side, then read the intercept course from the green line. You should come right to intercept course 270° true.
Note: If you wish to run an intercept course for a stern shot, then read the opposite side of disc C. In this case, turn left to heading 90° true.
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The way I see it is much simpler. In this situation it is most economical to shoot at the target's port beam (left 90 deg AOB, red side) with a bow shot, like the manual says. If you look closely at the yellow middle (true north) disk you see a clockwise course scale on the outside and a reverse course (counter-clockwise) on the inside of it. This inside (reverse) course scale is right next to the 'Lage' disk. So to hit a target at any desired AOB with bow torpedo's you turn to the course on the reverse compass that it is aligned with. Red 90 is aligned with 270 deg. Red 45 AOB for something like a magnetic shot would be course 315 in this case. (assuming you are ahead far enough for that) See what I mean? It is slightly different as meant in your step 6 and the note below. You shouldn't have to look at the green side if you want to hit the red side.