The world famous P-51 Mustang was one of the best fighter aircraft of the WWII. The prototype designed by corporation North American after Great Britain requested for the Royal Air Force, It has made the maiden flight at October 26, 1940. The modification P-51B was built in May, 1943. She differed by the installation potent and high altitude Rolls-Royce Merlin engine. P-51B gone into service of 354th Fighter Group of US Air Force in England in December, 1943. These airplanes were widely used as escort fighters and fighters - bombers on all theatres of war up to the end of the WWII.