P-51 Mustang, Vol. 2: The D, H, and K Models in World War II and Korea. David Doyle. 9" x 9". Even today, almost eighty years after its first flight, the North American P-51 Mustang remains one of the most famous and recognizable aircraft in the world. Nimble and fast, qualities that lead the Mustang to be used even today in air races, the aircraft was forged in battle.