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Originally Posted by jmr
A user by the name of Mittelwaechter wrote up his own tutorial for doing manual TMA via hydrophone only. Here's the thread if you're interested
By the way, I haven't had a lot of time to play SilentHunter lately but from the little experience I had with your maneuvering board I can say I dig it a lot. Looking forward to the next version. |
Thanks for the link... I will try to review it in futher detail as well as some of the other links on that thread perhaps tomorrow. I think you'll be happy to know that my TMA tool is a lot easier to use than what's presented in that thread.
I'm working on the MoBo documentation now and I can provide this snippet from the TMA intro info, keep in mind some of my deductions are theorhetical as I haven't yet play tested it, but still I think it's all fairly sound:
The TMA tool is used to determine target heading given bearings taken at equal time intervals. In its simplest usage, you can take multiple bearings over a set period of time and use those bearings to determine target heading. With the target heading, you can then pinpoint the target location if you happen to already know the speed or distance.
If you don’t know the speed or distance, you have two choices. You can take the less sophisticated approach of guesstimating; or you can use the TMA tool to predict future target bearings along the projected TMA heading. Assume for instance that you plot the bearing line of the target for 5 minutes into the future. If you know the bearing for a time in the future, you can change the position of your ship and take another bearing on the target at the same future time. The intersection of your predicted bearing and your new position bearing should pinpoint the target. You’re effectively triangulating on the target without the aid of a second ship!
If any of you have messed around at all with the TMA tools in Sub Command you should be able to pick this right up and run with it. I use a TMA line tool similar to the "ladder line" in the Sub Command TMA station. Unfortunately, we're not cruising around on a nuke sub so we have to take our bearings manually... but same basic concept: we're looking for a line such that the bearings bisect the TMA heading line into segments of equal length.
