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Originally Posted by ronbrewer
Sorry about that. What I meant by manual navigation is that you use a transparent .tga file for your sub so it is invisible on the map. Some of the manual targeting procedures have you draw a couple of lines from the center of your sub to a specific range/bearing for a target ship. You can no longer do this under the manual navigation mod so I spent some time looking into a procedure that doesn't require the map and only needs one range snapshot. After reading about some of the geometry tables that were used by Uboat weapon officers (both WWI and WWII) I came across the right triangle procedure that has the sub slide down the hypotenuse during the speed calculation and doesn't require whiz wheels or slide rules for the last few seconds of the torpedo solution. Plus it allows you to manually turn the dials on the TDC in the conning tower (has always been one of my favorite parts of the sub simulation) without pausing the game and avoiding the notepad entries on the periscope screen that kind of take away part of the immersion for me.
Thanks,
Ron
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Ahhh, OK, that makes *MUCH* more sense now. I don't bother with the map view when in action, just for those long periods between contacts. Still, you could do a manual polar plot (like using a maneuvering board). I'm thinking about checking the bookstore where I work (a college) to see if they have some polar plot paper. That way I don't have to use an American maneuvering board to manually plot contacts.
By the way, Hitman is working on a whiz wheel/circular slide rule based on one that was actually used for targeting in U-boats during WWII. He's already made some good progress:
http://www.subsim.com/radioroom/showthread.php?t=113591