Quick Question on Manual Range Estimation for the TDC

[Pisces]

Originally Posted by Contact

However I noticed that in stock SH3 calculation of range is not a vital thing to make in order to get a hit

As distinct from OLC Gold where it is very important to maintain range monitoring for accurate further calculations and repeated range adjustment is adviced just before the launch of the torp.

Infact, for the notepad procedure, I think the initial range is used to set up the scale of the firing triangle (initial range to target, target track, torpedo track).With it, and the estimated AOB, it has 2 sides of the triangle. It just doesn't know how long the target track is. That is why you do the speed option, to let the target move along it's track.Now you have a change in bearing and that closes the open end of the triangle, thereby also fixing the speed (target moved along it's track in that many seconds) The notepad-way has all the important things in the wrong sequence, making the important speed calculation based on uncertain data like range and estimated AOB. Not a reliable method.

Theoretically, it should be possible to (first measure range, then...) just set the AOB to 90 degrees and accept whatever speed value comes out when the bearing was locked and moved. Aslong as you can enter it in the dial. But since it is probably a huge value it is likely not possible. Also, the time to impact would be wrong, and you still need a quick range update to correct for gyroangle. And the speed and AOB setting is only valid at that last instant so absolutely not practical. .... So forget what I just said, I'm talking in 'Nutty Professor'-mode here. It won't be in the exam.