A later development of the Vultee V-11 was the V-12, a streamlined alternative to the largely unsuccessful type. First flown in September 1938, the prototype aircraft (NX18985) was sold to Pratt and Whitney aircraft as a test bed.
Vultee V-11 / YA-19
The Vultee V-11 two- and three-seat light bomber was of not much interest to American forces, but saw some service with foreign air forces. While the USAAC would later purchase 7 Vultee V-11s (calling them the YA-19) to compare with other aircraft of the day, there was some interest from foreign governments whose air forces were just beginning to grow.
China ordered 30 two-seat Vultee V-11s and then more Vultee V-12s (a more powerful variant) which they were planning to assemble from kits (25 were finished), Brazil acquired a total of 26, Russia bought or built a total of 34 and Turkey purchased 40.
The aircraft had limited combat success with the Chinese, and a Brazilian Vultee V-11 made an attack on a submarine, damaging itself in the process. Later developments would have a rear facing gunner at the back of the cockpit plus a rear-facing ventral gun position protruding from the bottom. Most were later used as high speed liaison and transport aircraft.
In 1915 model airplane builder Harry Wells built a full-size single place open cockpit biplane patterned after Laird's Baby Biplane.
Powered by a 12hp 2-cyl Kemp engine, Wells was often seen taxiing around the field, but never flying.
Wells Shama WWI
In 1983 Eugene W Wells of Hawaii built the Shama WWI two place open cockpit biplane.
Wellington Sport Mk 1 Pup
The 1966 Sport Mk 1 Pup two place open cockpit biplane was originally powered by a 160hp Kinner R-540, and later a 220hp Continental W-670.
Only the one was built, registered N2312C.
Useful load: 630 lb
Max speed: 118 mph
Cruise speed: 103 mph
Stall: 50 mph
Range: 350 mi