I can see ships, but the crew can't

[WernherVonTrapp]

Originally Posted by Daniel Prates

Not only that, you can also input manually all the TDC data, according to your best guesses.

Do you think real skippers had a 'lock' option? the best they could to, I guess, was to have an officer constantly pointing the scope to the target, assuming he wasn't doing that himself. All the data TDC need in inputed either manually, or directly by the sub's systems. Bearing on the target is inputed directly by the scope. Rotate it 10 degrees to the left, and the TCD considers the target to be 10 degrees to the left.

Let's digress a little more. A corolary of this argument is this: if you are in good visual situation, and has already every TDC data plotted in, you can 'unlock' the target and aim for an specific part of the target with your scope.

Perhaps I'm confused here because GreyBeard's problem is that he can't get a visual on the ship. Are you referring to course and speed through sonar only?