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Dissaray · 01-21-10, 05:01 PM

With practise it isn't that hard to make visual range estamates that would be accurate enuf to target or plot course from. My two borothers and dad both bow hunt and that involves a lot of guessing at range so they can figure out how high up they have to aim to compisate for gravity and the three of them can come close enuf to hit most of the time, so long as there isn't elivation changes I guess.

So it is not imposible to look at some thing and know about how far way it is, at sea I guess it would be a little harder without any other referance points to work with, but I would bet an experianced watch hand would be able to come with in 150 meters of the actual distance.

01-21-10, 05:01 PM	#10
Dissaray 中国水兵 Join Date: Oct 2009 Posts: 280 Downloads: 35 Uploads: 0	With practise it isn't that hard to make visual range estamates that would be accurate enuf to target or plot course from. My two borothers and dad both bow hunt and that involves a lot of guessing at range so they can figure out how high up they have to aim to compisate for gravity and the three of them can come close enuf to hit most of the time, so long as there isn't elivation changes I guess. So it is not imposible to look at some thing and know about how far way it is, at sea I guess it would be a little harder without any other referance points to work with, but I would bet an experianced watch hand would be able to come with in 150 meters of the actual distance.