Good evening, Polovski,
I thought the Spitfire radiator handle in the cockpit did move, but after the last update I played and it didn't and in fact I get the engine is running message as if I pressed e instead of the correct key binding.
The Hurricane door is animated as noted, but the cockpit handle isn't moving for it either.
I may not be recalling correctly....it had been a while since I played and I've been playing Cliffs of Dover quite a bit so that might be the source of my confusion.
All my best,