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[sublynx]

Originally Posted by washishu

Anybody got any tips for id-ing ships at night or in bad visibility?

You don't necessarily need to id (if you are pretty sure it's an enemy ship), since estimating the ship's approximate size class is often enough at close ranges. Almost all of the destroyers for example are about the same size. Most of the 1600 - 2000 GRT merchants are about the same size. Carnavaro's document collection has ship recognition tables you can use. Those table classify ships by size and type. You just feed some ship to the notepad, that you think is about the same size that you are seeing.

Another way of shooting at something you don't recognize: Use the torpedo bearing table in Carnavaro's document collection. Using this method you do have to guess the speed of the ship accurately, though.

Carnavaro's must have collection of neat SH3 stuff is found here:
http://www.subsim.com/radioroom/down...o=file&id=1487

IXB eh?
Here's a tip that especialy applies to IX drivers.

If you come on a tanker running 14+ knots, it's almost guaranteed to be US flagged.
(If USA is still "neutral" save your fuel and time).

Operating farther from England than the VII drivers, means you have to spend more time ensuring that you don't sink lone neutrals.

[Osmium Steele]

Originally Posted by sublynx

You don't necessarily need to id (if you are pretty sure it's an enemy ship), since estimating the ship's approximate size class is often enough at close ranges.

Even today's sub drivers are constantly changing mast head height of a potential target, much to the annoyance of their fire control tracking party.

Just put your best guess in there initially to give yourself a baseline, then refine the targetting solution as the target gets bigger in the scope.