I know @marceldev89 submitted a fix in 1.3.0 to correct the problems with planes not taking off when called for CAS, but 1.3.0 hasn't improved it on my end. It's still happening (with mods at least. No AI mods though. Just RHS).
I'm going to run some tests to see if I can get a clean vanilla repro, but is anyone else having problems with this? Helicopters are fine but planes, take the orders and start their engine but never move.