In February 1937, Saville paired with Lieutenant Benjamin S. Kelsey, Project Officer for Fighters at the USAAC, to find a way to get around the USAAC's arbitrary 500-pound (225 kg) limit on the weight of fighter aircraft armament.
Saville entered the Command and General Staff School at Fort Leavenworth, Kan., in September 1938, and graduated the following June [REF].