How?

How does a plane get THIS dirty?! http://www.airliners.net/open.file/1037946/L/
Flight Simulator and other chat
https://forums.simviation.com/phpBB3/
https://forums.simviation.com/phpBB3/viewtopic.php?f=34&t=97787
A bigger problem for German F4's is the exhaust. The biggest downer for a German F4 pilot is that you can be seen coming before the enemy radar has got you. Imagine a shuttle launch..........then colour it black ;D
Matt
You're all mistaken ::)
http://www.airliners.net/open.file?id=1157667
it is called the Air Defence diesel for a reason you know...