I just want to say, that in real life in 1944 the US produced 3x more planes than all other world powers combined. If you make it historical, you have to give the US an income of 200/turn. The idea is that it be an entertaining game and that it jog your memory of history class.
Planes and friendly neutrals
Can a plane whose aircraft carrier has been damaged or destroyed land in a friendly neutral country. e.g. GB1) british fighter participating in a battle in SZ 97 was planning to land in a carrier within the same SZ. The carrier is damaged. Can this fighter land in Greece to complete its move. Does it matter whether Britain activates it with a land unit in its non-combat move phase of turn 1.
To be able to land a plane in a territory, the territory has to be under controll by you or your allies at the begining of your turn.