Basic question re the TDC in ATO/KIUB mod

[I'm goin' down]

As I said, I understand your explanation of the fast 90. It was concise.

My question is that once I practice it I will want to try attacks at angles other than than 90 degrees. (Isn't that why we have the KIUB?) What is the procedure for those attacks using the TDC? Is it calculate Aob, Range and Speed with the KIUB. Turn off the TDC and enter the Aob, Range and Speed. Reactivate the scope. If so, where do you point the scope? I am not sure that procedure is correct.

I assume you can attack at angles as Wazoo's manual discusses it, but maybe I am wrong. I would rather not be confined to a fast 90 if there are alternatives.

[Fincuan]

The procedure is exactly the same in any other angle. What I probably didn't highlight enough is that when you initially point the scope to your nose and dial in the target's AOB at that bearing(ie. 90 left or right), you're not really pointing the scope at your nose but to a bearing that intersects the target's track at 90 degrees. In the above case, which is the simplest one, it just happens to be on your nose.

If you're be approaching the target's track at an angle, let's say 60 degrees, you just need to use some math to calculate the bearing at which your line of sight intersects the target's track at 90 degrees, turn your scope to that bearing and then continue setting up the TDC as before.

Example:
Our course is 250, target's course is 315

Bearing we need to point our scope at =
Target's course - 90 degrees - Our course = 315 - 90 - 250 = -25
-25 + 360 = 335

So we'd need to point our scope to bearing 335, then set-up the TDC. The explanation might not open up immediately, but if you draw it out or play it ingame, something which I can't do at the moment, it becomes clearer. Note that you need to use +90 degrees if target is coming from the right, and -90 if it's coming from the left.

[I'm goin' down]

Thanks. For some reason I cannot hit a target using the fast 90. I will keep working on it.

[I'm goin' down]

Short version -I was setting the Aob in the exact opposite direction.

The left side of the Aob dial says, "Bug Links." Translated this means bow of the ship left. When a target is approaching the bow of you your ship from starboard (i.e. it is moving from right to left), the Aob viewed from the target's bow is to its left (port). This means that the Aob dial on the UBoat, as viewed from the bow of the target, should be set to 90 degrees Bug Links (bow left.)

The right side of the Aob dial says, "Bug Recht." Translated this means bow of the ship right. When a target is approaching the bow of you your ship from the port (i.e. it is moving from left to right), the Aob viewed from the target's bow is to its right (starboard.) This means that the Aob dial on the UBoat, as viewed from the bow of the target, should be set to 90 degrees Bug Recht (bow right.)

For a captain such as myself who learned on an American sub this is counter intuitive. However, it now makes sense, plus it worked. I sank the submarine in the tutorial with four shots, all hits. The Aob reading was 80 degrees Bug Links (bow left) when the target crossed the wire at 10 degrees heading right to left at 7.5 kts. If I had fired when the target crossed the wire at 0 degrees, the Aob would have been 90 Bug Links (bow left.)

The above coupled with the explanation you and Wilke provided (Wilcke sent me PMs) were correct and much appreciated. My problem was that I could not read German. I used an German to English dictionary translation to figure it out.

Thanks for your help.