This book examines the genesis of the AT-9 design, its competitors and, eventually, comrades-in-arms, with whom AT-9s were always literally the best and the brightest, and looks at the fielding of the aircraft to the 24 initial stations as well as an astonishing number of unusual and special assignments – including assignment to line, tactical units.After producing 791 aircraft between September 1941 and January 31, 1943, and assigning every single one of them, and having served actively and continuously through to VJ-Day, exactly one complete AT-9 survives, and this solitary example is actually a composite of several aircraft.