Windsock - Koldunchik "macro wizard in the scm format that can be placed on the airfield. Warning, the archive is to it para, a lightweight version and put it necessarily in the field of view, you can disguise it under a tree:). If you put two or more , the pair set is not necessary. This is a known problem of variable wind direction and strength. sorcerer understands not only the direction, but all five levels of wind power. I lay in my archives. The thing is old, but still works flawlessly. All was written down "by hand", the source does not exist.