The P-51 is a American fighter. It was introduced in Update 1.49 "Weapons of Victory".

The P-51 Mustang retains a lot of the traits that may be found in its later variants. The main difference comes from the limited Allison power plant and its formidable armament of 4 x 20 mm Hispano Mk.II cannons. The plane may not climb very well but does retain the traits of an energy fighter. Even with its limited climb rate the aircraft's dive-speed is excellent, but manoeuvrability is average at best. The armament is the true advantage of this aircraft. The 20 mm cannons are powerful, but with only 500 rounds do not try to go for more than what the P-51 can handle. The best way to use the P-51 is for Boom & Zoom.

The P-51, when fully upgraded, is an extremely deadly opponent, especially as a rank III. The engine will have a hard time hitting the "overheated" mark, even when using WEP. Use caution though, as the engine will retain its heat when constantly on 100% power, so it takes a bit to cool down. Also be sure to utilise the flaps: they are a major asset to the plane's overall turnfighting ability and sometimes allow it to survive a turn-fight with Soviet aircraft. This is an awesome plane for those just starting out in Realistic Battles, as the 20 mm cannons are good at scoring quick victories.