Yenny,
You always fly to your own planes strengths And abilities and know your planes limitations. Not to your opponents strengths.
In a turn fight I know I can take my D9 maybe a couple of turns around before its time to get out of dodge and extend. r to use and entirely different manuver.
Fighting to your enemies strengths is usually folly under most circumstances.
The trick is to goad your opponent into fighting your way while not letting him goad you into fighting his.
As for the History Channel. I wouldnt want to bet anything valuable as to their total accuracy all the time either.
Anyone remember the video they used to show about the P-51 D while all the while showing clips of a P-51B?
Remember. the HC is trying to be entertaining. Not a history teacher. They dont have to be 100% accurate. Just entertaining enough to keep you watching.
Im sure a few others here could chime in about their creative licensing
As for being able to out turn the 109. That would also depend on circumstances altitude and models of aircraft involved
Same thing with max speeds
Model XP-51 P-51A P-51B/C-1 P-51B/C P-51D/K P-51H
Maximum Speed 382 @ 13k 390 @ 20k 430 @ 25k 439 @ 25k 437 @ 25k 487 @ 25k
http://www.mustangsmustangs.com/p-51/p51specs.shtml