Originally designated as the advanced trainer AT-6, North American’s single-engine training aircraft was extensively used by the U.S. Army Air Forces, U.S. Navy (as the SNJ ), Royal Air Force (as the Harvard ) and allied air forces during WWII. The prototype first flew in 1935, and by the time production ceased over 15,000 T-6s of all types were built. This included the AT-6B, which could hold a machine gun and was used for gunnery training, the AT-6G which offered a steerable tailwheel and advanced hydraulic system, and the Navy’s SNJ-3C with arresting gear to permit carrier training. Aside from training duties T-6s saw service as forward air controllers, and served in combat on several occasions including for the French during the Algerian war. The T-6 remains a popular aircraft for Hollywood (in Tora! Tora! Tora! painted T-6s impersonated Japanese Zeros) and at air shows, where its throaty engine and classic warbird looks make it a crowd pleaser. This pilot’s flight handbook dates from 1945, and features details on the AT-6C / SNJ-4 and Harvard IIA airplanes. Originally restricted, it was declassified long ago, and is reprinted here in its entirety.