The North American AT-6 Texan two-place advanced trainer was the classroom for most of the Allied pilots who flew in World War II. Called the SNJ by the Navy and the Harvard by the British Royal Air Force, the AT-6 (advanced trainer) was designed as a transition trainer between basic trainers and first-line tactical aircraft. It was redesignated T-6 in 1948. A pilot's airplane, it could roll, Immelmann, loop, spin, snap and vertical roll. It was designed to give the best possible training in all types of tactics, from ground strafing to bombardment and aerial dogfighting.