Sub Skipper's Bag of Tricks

[ColonelSandersLite]

Originally Posted by Rockin Robbins

The telemeter marks are supposed to be a quarter degree at high magnification, one degree at low magnification. But talk to Captain Scurvy about that one!

Not how I measure actually, since I know those are wrong. What I do is point the periscope at the bow, then point periscope at stern and note the bearing change.

Originally Posted by Rockin Robbins

that's the pseudo torpedo track.

The real torpedo track extends straight out from the sub to a point called the reach....

Yep, but for 95% of all purposes the pseudo track is good enough to get the information we need. If it's not, you really probably need a banjo.