Originally posted by ebgb
i'm not advocating turning the icons off entirely, just turning off the plane type portion of it.
The thing with icons isn't that they're identifiable too easy in the game, thing is acquireing vis on planes is too easy as well as judging ranges.
To design the perfect (

) icon type for a simulation let's start from a non-icon environment and then add icon information for what is needed:
a) detecting aircraft isn't really easy in reality. It isn't either in an icon less environment. Colorful icons make it a lot easier (e.g. a single second is enough to scan the whole sky up to 6000 yards out). Therefor icons color needs be something that blends in with the background. A medium gray, blueish if above the horizon, greenish if below, will do fine. Size as small as possible.
b) identifying in an icon less environment is too difficult, so add a short tag of letters, maybe with increasing information when the plane gets closer. Color see above. Change the distance it is displayed at depending on the attitude the plane is flying and position of the sun. IRL opposing parties usually use different aircraft, so add country information as soon as type identification is available.
c) seeing the attitude of the aircraft is way too difficult in an icon less environment because of both limited resolution and the 2d nature of the screen. IRL it's even possible from further out than identification. Add thin lines through the main axis of the aircraft at long distances where significant parts of the planes can't be drawn. Color and size see above.
d) Judging distances isn't too easy. Binocular vision allows judging them up to a maximum of 100 yards (even less), so below that a resolution of 1 yards seems plausible. Further out resolution has to quickly decrease. Identifying increasing or decreasing distance is easier than judging absolute distances, so add a small +/o/- to indicate that. Color and size see above.
AH fails in 3 of those 4...