Ok, I don't want to step on anyone's toes, but I think you guys are answering the wrong question. The question that I see (although not articulated) is this: "If I'm in a Cessna with my buddy and he has a heart attack or he passes out from some medical condition, will my experience with IL2 help me not die?"
My answer is yes, of course it will! If you have someone on the other end of the radio that can give you approach speeds and flap settings and the like, I bet you'll be just fine. I mean you know what an altimeter is and you know what flaps are, and you know which way to push the stick to make the nose go down (and up). You might very well still splat yourself all over the runway, but you'll have a hell of a lot better chance than the average schmuck (which is to say, any chance at all).
That said, keep studying Sailboat, you never know when you might need your skills..........