Hello, some explanation on collision model?

There is no "collision on/off" option on settings, but I don't mind.

I tested it a little, and it seems that (correct me if wrong) it works different from enemy and friendly planes.

Like friendly planes got a smaller "area" of collision, and you need to almost totally overlap the planes to have a collision (which ends being fatal because pilot get killed).

While enemy planes minds better the plane sections (wing tip-wing tip collision happened to me).

Any idea?

Honestly I've never experienced any difference, zifnow. I've had plenty of collisions with my wingmen. If any, I have more collisions with them because I spend more time with my flight mates than going in circles with the enemy.

Note that not all collisions are fatalities - though that IS the way to bet. I've seen collisions where one plane was destroyed and one managed to limp away, or others where both limped away.

Everybody (AI and human) uses the same damage model for each particular plane, so what ever happens to the human, happens to the AI.