[WIP] Targeting and Plotting Manual

[Letum]

I think it would help a lot of members if we all got together to create a
short targeting and plotting manual or data sheet with all the tips and tricks in.

I am happy to put it together, but I need lots of input from everyone!

Please post anything you might feel is relevant.

Things like:

Different methods for working out AOB, Range etc.
Plotting intercepts
Hydrophone targeting
Single observation targeting
Zero calculation estimate/guess shots
Etc.

I especially want formulas for working out speed, range and AOB.
The more the better.

I hope there is some interest in this.