The is widely considered the most effective long-range fighter of World War II, a "game-changer" that allowed Allied forces to escort bombers deep into enemy territory. Originally designed in just 102 days for the British Royal Air Force, the aircraft only reached its full potential when its original Allison engine was replaced with the legendary Rolls-Royce Merlin . Performance & Evolution
The P-51's dominance was built on a series of technical innovations: North American Aviation P-51 Mustang
