The P-51 Mustang was apparently known as the F-51 in the Korean War. What was one of the most formidable and effective air superiority machines in WW2 was, only 5 years later relegated mainly to a ground attack role. The jet age had begun.
The P-51D, which I flew, was a very straightforward airplane in every way. By that I mean it wasn't difficult to fly or hard to handle, as long as you remembered a few basic things. First and foremost, you never forgot for a minute that it could bite hard if you got careless.