A few suggestions
-the buttons overlap the scope in the corners which means you can't issue orders without tapping on another plane, which is a big problem. You could shrink the button size or reposition them.
-inbounds and outbounds should be color coded so that you don't accidentally lose track of some
-airspeed should only be 3 increments (250,200,150) to save time selecting, and also to comply with the 250 under 10,000 rule
Otherwise, good game. I'm currently stuck on 50 planes