Depends on the model I guess. The flight models in flightgear are reputedly very accurate indeed, except for some of the "joke" models like the flying saucer (well, they MIGHT be accurate I guess )
Yeah, I dunno, I just enjoy the image of Rainbow playing sports games and trendy shooters on one hand, and then this complex flight sim on the other. Then again I dunno if human Rainbow is all that interested in flying.