[Abd_von_Mumit]

Originally Posted by Reece

I've wondered that too Seth, we do all these calculations but none use the scopes calibration marks, when entering TDC manually & satisfied that it is correct can you then set it to update automatically as it does by filling out the notepad in stadimeter?

In vanilla SHIII TDC does update the data regardless of the way it got it from — you can enter the data manually or by periscope. I suppose in GWX it works the same way, this is the reason of constructing TDC.

As to the range and scope calibration marks we must remember, that if we use them (calculating data manually after observation) our mistakes can cumulate. If you estimate the AOB wrong, you'll get wrong range also. From my experience I find the AOB harder to estimate than range itself and I prefer to get range with multiple stadimeter observations and then 'calculate' speed and course.

Originally Posted by Reece

seems to me that if you are using this method in a convoy, since they are all doing the same speed & course, would just be a matter of changing/locking targets, firing, would this work? probably not, forgot range would be different, although it could work on ships following the same path!

It will work well as long as you:
— don't change your course,
— don't forget to change range (manually or by stadimeter&notepad) if it varies significantly (more than +-30%, I assume).

Originally Posted by Reece

More tests & practise in order!! My wife won a scholarship mainly for her math skills, maybe I can call on some help here! though I doubt it!:rotfl:

Calculating range using scope's calibrating marks is very time consuming if you'd like do it manually (without scientific calculator or any kind of magic wheels). Your wife would get bored soon.