Rodeo - Just a teeny request for the bottom of your multi-page "to do" list. Can you do another video tutorial showing a more advanced form of runway mesh cutout? I couldn't find out any more about using the knife or vertex picking. There's a lot of youtube about AC3D but they generally seem to be about creating new objects and not overlaying things onto photo scenery and aligning object/vertices to it.
As well as the criss-cross runway problem I just made a second runway on a different airfield but found that the 45m mesh I created to match the runway width was a poor fit lengthwise, so either I chop off a chunk beyond the runway or I have some background runway markings emerging beyond my created runway.
As I say a request for the list. I'll have some fun now adding objects to my airports.