The Vultee V-11 and V-12 were American stressed-skin monocoque monoplane attack aircraft of the 1930s. Developed from the Vultee V-1 single-engined airliner, the V-11 and V-12 were purchased by several nations for their armed forces, including China, who used them in combat against Japanese forces in the Second Sino-Japanese War. The United States Army Air Corps purchased seven V-11s as the YA-19 in the years before World War II, testing them to gather data to compare against twin engine light attack aircraft.
Vultee V-11
Vultee V-11GB prototype NR-17327
Camouflaged Chinese Vultee V-11-G
Brazilian Vultee V-11-GB2 landing
The Vultee V-1 was a 1930s American single-engined airliner built by the Airplane Development Corporation, designed by Gerard Vultee and financed by automobile manufacturer Errett Cord.
Vultee V-1
Vultee V-1A at Langley
The Vultee V-1AD Special NC16099 in 1973 after restoration and named Spirit of Pueblo
Vultee V-1A 3-view drawing from L'Aerophile July 1934