How to use TDC in Kriegsmarine?

[stolypin]

I'm playing the scenario "The Sinking of HMS Courageous" in Kriegsmarine and cannot for the life of me remember -- or find -- how to use the TDC for my U-29. Can someone kindly refresh my memory? (Smartwargames has a video about it but he describes it so quickly and summarily that I can't follow what he is doing).

Thanks.

[GMcClellan]

It's on page 53 of the manual.

3.5.10 Torpedo Data Computer (TDC)
In the standard submarine rules, torpedo shots must be fired manually. But in
most cases, submarines were equipped with computers that provided a firing
solution based on input target data. In the enhanced submarine rules, there is
a Torpedo Data Computer (TDC) feature that can be used to generate firing
solutions.
52 | Page
Naval Campaigns User Manual
To invoke the TDC feature, you select the
submarine to fire the torpedo and then hold
the cursor over the target ship while holding
down the Control (Ctrl) key. This will
generate an approximate firing solution
shown on the main chart as a blue line as
shown here. You can then fire your
torpedoes however you see fit with respect
to this firing solution to achieve what you
consider to be the optimal torpedo spread.
Note however that there is always some
error associated with the firing solution mainly associated with the historical
training and experience level of the submarine crew. This error is reported per
side as the Torpedo Data Computer Error in the Parameter Data.
When a torpedo is fired using the Torpedo Data
Computer, then the running time of the torpedo to
reach the calculated hit location will be automatically
shown on the ship icon in the format
minutes:seconds.

[stolypin]

Thanks!