How to calculate ACCURATE range without having to use the stadimeter?

[Paul Riley]

Originally Posted by Hitman

He does round up the values to the next hundreths, i.e. 5634 metres is 5600 metres, but that is not just close enough, but also realistic for what you would expect when using a small hand-held rangefinder (In fact may be even more at long distances) and is good enough for plotting while surfaced. Once you are underwater, at periscope depth, it will be just you who can look through the periscope and construct the firing solution -again realistically-

That all makes sense now mate,and thanks.Getting accurate ranges to targets with the naked eye or as you say a small rangefinder would have took nothing short of god-like abilities.

Just one last little question about this now.Lets say you got your range wrong by about 100,or 200m,how far out would that be after about 50km of tracking,would the contact still be in either visual or audible range?.Getting the ranges wrong,would naturally give you a slightly incorrect course angle,and after 50km or more even a 1 or 2 degrees shift could be quite substantial.But probably not that much,he should still be in sound range,at least.