August 19, 2010 at 8:57 pm
There you go, now I know how all you ardent aircraft spotters learnt how to do it! Or is it that you wrote the article?
By: Bograt - 24th August 2010 at 22:18
Pah! Bunch of amateurs….this is the proper way to do it –
http://www.scramble.nl/mag/shop/gfx/dilemmas.pdf
You can buy the book here!