Okay, after an hour or so of browsing www.airliners.net, I've hit a question. How do all those photographers find what the aircraft number actually is (e.g 747-422) I can see how they found the 747-4 part, as that is shown in the aircraft's design (747-400). I figured maybe the last two numbers had to do with the aircraft's tail number, but it seems to have no correlation, so just HOW do they know?
-HF