ORIGINAL: Yamato hugger
From what little was said on the devs forum on it, each plane searches a 10 degree arc, so if you have 4 planes in a squadron, you want to limit your search to 40 degrees. From experience I can say that leaving it at a 360 is near useless. As supreme commander of which ever side you play, you get the honor of dictating the search arcs for each of your squadrons. Bet Yamamoto loved doing that every day. Wonder if he did it before or after breakfast?
Well I think we need to look into this a little further. I was working up some quick numbers but to say "each plane at 10 degrees" is really not enough but at least a starting point. What we truly need to know is what square mileage would be on the positive side of things. Then take that number and put a "XX Degree/ plane on it" so it would be easy to figure out in your head. Maybe 10 is the magic number but if you look at it, that isn't very much. [X(]