Hello again fellow cap'ns.
I have a couple of problems that i could not solve by myself and my forum searches failed to return a proper solution for me. I would be very grateful if you could help me
Problem 1: Ship recognition manual (the book, SOAN) fails to filter by number of stacks (or chimneys
. When you try to filter by it, it shows no ships at all. Please see screenshot 1 below
Problem 2: RAOBF scale error. I think this has been mentioned earlier but i was not able to find a solution. In the tutorial RAOBF practice i measure the optical height and the optical length of the ship and find some discrepancies. These differences causes errors in measurements. For example measuring the optical height as 12 in my case instead of 10.6 (which was the value suggested in tutorial) returns a lower range. Please see screenshots 2 and 3 below
