My latest project is the Xtreme Skymaster F-18F. Using an airbrush I used a combination of the dark Gray, mixed with Black and Yellow to highlight the panel lines and make it look dirty, looks like rust and oil.

Of course the biggest problem with weathering is over doing it and I think using straight Black for weathering is a bad idea in most cases.

The pictures do not show the weathering very well, in person it looks pretty convincing. Not shown is the bottom under the engines and behind the gear doors is where most of the dirt accumulated.

Less is more!

Luke