Ok back onto the original subject, in real life,
The p-39 had a free swivel nose gear, and a automotive style door
The P-38 also had a free swivel nose gear, and if the slide down window was open on takeoff, it disturbed the air over the elevator and was difficult to impossible to get off the ground, and there were very few successful bail outs from the P-38
The Me-109 had an extremely heavy canopy, and if it was ground looped on takeoff or landing, and did manage to get over on it's back the canopy could not be opened, considering there was a 150 gallon tank under the pilots seat, that was not a good thing. Also another bad thing about the 109 was that in some models, not all, and more of a random occurrence, the prop would go flat, and act like a huge air break. The reason for this was not found out, nor is it known at this time. The last occurrence of this was back in the early 90s when a CAF 109 was being flown by it's sponsor and it happened, when the accident investigation was done the impact was flat with very little forward motion, and the prop hub was flat, as in more than fine pitch.