I continue to get questions about this.
AIRCRAFT CAN NOT ENGAGE GV BASES OR GV'S UNTIL AFTER T+60.
They may fly over it prior too and after T+60, but they may not actively attack Targets in the GV area until T+60. I will be able to to tell by the logs and penalties will be enforced.
Good luck seeing much anyway, the clouds will have you flying into trees and hills.