The North American P-51 Mustang is a World War II fighter aircraft known for its speed, range, and agility. Designed by North American Aviation, it first flew in 1940 and became a crucial asset for the Allied forces. The Mustang was powered by the Rolls-Royce Merlin engine, which significantly enhanced its performance. Equipped with six .50 caliber machine guns, the P-51 was effective in both air-to-air combat and ground attack missions. Its long-range capabilities allowed it to escort bombers deep into enemy territory, contributing to the success of many air operations during the war.