The North American P-51 Mustang was a single-seat, long-range fighter aircraft that became one of the most iconic and effective planes of World War II. Originally designed for the British Royal Air Force, its performance was significantly enhanced with the adoption of the Rolls-Royce Merlin engine, turning it into a high-altitude escort fighter with exceptional range, allowing it to accompany Allied bombers deep into enemy territory. The P-51 was also a capable ground-attack aircraft and was well-loved by its pilots for its speed, maneuverability, and firepower, playing a crucial role in achieving air superiority over Europe.