Well, we're talking about one-off incidents here. Anecdotal evidence, one might say. It may well be that choppers are toast most of the time, and some guys just got lucky, which is why we have these stories. Or it could be that the choppers can put up a good fight against a fixed-wing fighter. We'd need a lot more data points to reach a reasonable conclusion, though. And maybe such encounters are so rare, that there aren't enough data points, at which "point" we have to rely on theory.

"In theory, there is no difference between theory and practice. In practice, there is."