'BEARING' help needed please

[Pisces]

Second guessing the TDC is not the right thing to do. If it doesn't give results, you didn't feed it the right stuf. Or the target just outsmarted you with a manouvre.

There is no point in setting the bearing needle. Since whenever you turn the TDC to auto (not allow manual changes) the game just takes whatever angle the periscope (attack, or just last used, I'm not sure) is set to. Therefore it depends on how quick you are with entering the AOB setting with a locked scope. If you make up your mind on the AOb you see, then wait too long with twiddling the dial, then switch the TDC to auto. The bearing has changed compared to the appropriate beairing. But as Paul allready suggested it is much easier to set up your uboat in advance. To some angle to the target track, mostly 90 degrees across is preferred. And then set the periscope to 0, and set the AOB to whatever it will be when the target is right in front. Afterwards, with the TDC in auto-update mode, the bearing change automatically updates the AOB setting.

Speed is very important. Make sure you know it to a certain accuracy. 1 knot too fast or too slow and your lead can easily be more than 1 degree wrong. This is especially noticeable when the target is going to be hit from afar. As objects in the distance look small, your lead angle (difference between periscope line and gyro-angle) needs to be just as accurate. i.e Tramps steamers or other smaller merchants are about 78m long. At 2km that is just 2.2 degrees wide. So speed wrong by one knot could mean hit or miss.