[karamazovnew]

There are no green numbers at all, at the horizontal center line - and not at the top - only those small edges going up in a "V" form. Huh ?
Or only visible at 1.5x, not 6x ?

There are 2 sets of marks. The ones visible when the AOB wheel is hidden, and another set when the AOB wheel is shown. Zoom doesn't change anything. Neither does resolution or aspect ratio. Please give me a screenshot of both situations.

So, should i let the AOBF inner wheel stand where it was when taking the AOB measuring, to afterwards measure the speed ? Because then the AOB, or length, is taken into account ?

No. To calculate the AOB you line up the target's range with it's length. To calculate the speed, you align the time (same circle but different value) with the length.

Hmmm, yes. But if my sub moves at say 7 knots, and the target at 15 knots, the measurement from when the bow hits the 000 line until the rear end hits it again, takes forever (at distances of appx. 3500 meters). Takes much more than a minute even with a small freighter ...

That's impossible. Even in the worst case scenario (running parallel with target, at 270 or 90) a speed of 8 (15-7) knots will still take less than 40 seconds.

i remember the OLCgui video thing - does it also apply to this ?

Yes it does. I now use the exact same procedure I used in ACM. Let me tell you, it all depends on how well you approach your target. With a good approach, you can make a good AOB measurement and put yourself on a perfect 90 intercept course from far away. Then you run underwater as fast as possible to get close enough. You get the speed when the target is at 45-60 AOB (full reverse and hit all stop as soon as you reach 2 kts) and you do a final range check just before shooting. You don't need to calculate the AOB when the target is CLOSE because you don't have time and you can visually estimate it well enough anyway.

The periscope cannot move with any AOB wheel mod. You don't need the torpedo setting panel when doing calculations. Just close it. The TDC one doesn't cover too much usable space anyway.

On my last patrol I've sunk 50k tons without saves (torpedoes only, deck gun only for finishing 2 targets after 2 duds). All torpedoes hit. And I do mean ALL. I took the AOB for some of them at 5000m and the speed at 3000m. I didn't even bother rechecking or inputing range. On some ships I intentionally made mistakes and still managed to nail the AOB within 10 degrees. Speed was even off by 1 knot (intentionally). Most shots were taken at <800 meters. After the targets closed down to less than 2000 meters, I followed them by sonar and only raised my scope for 5-10 seconds to shoot. It all comes down to practice.