United States' North American P-51 Mustang fighter updated

The P-51 Mustang is probably one of the most well known fighters to be used during World War II. It didn't have a very good start as it didn't have good performance at high altitudes, but once the engine was replaced with a Rolls-Royce Merlin it became a fabulous performer. I've made some minor updates to my pages:

• P-51 Main Page
• P-51A
• P-51B
• P-51C
• P-51D