Cessna AT-17 Bobcat

AT-17 / UC-78 Bobcat Model T-50
Cessna AT-17 Bobcat
Role	five-seat light transport
Manufacturer	Cessna Aircraft Company
First flight	March 26, 1939 (T-50)
Primary users	United States Army Air Forces Royal Canadian Air Force United States Navy
Produced	1939-1944
Number built	5,422

The Cessna AT-17 Bobcat was a twin-engined advanced trainer aircraft designed and made in the United States, and used during World War II to bridge the gap between single-engined trainers and twin-engined combat aircraft. The AT-17 was powered by two Jacobs R-755-9 radial piston engines. The commercial version was the Model T-50, from which the AT-17 was developed.

The AT-17 was a military version of the commercial Cessna T-50 light transport. The Cessna Airplane Company first produced the wood and tubular steel, fabric-covered T-50 in 1939 for the civilian market, as a lightweight and low-cost twin for personal use where larger aircraft such as the Beech 18 would be too expensive. A low-wing cantilever monoplane, it featured retractable main landing gear and wing trailing edge flaps, both electrically actuated. The wing structure was built up of laminated spruce spar beams with spruce and plywood ribs. The fixed tailwheel is non-steerable and full-swivelling. The prototype T-50 made its maiden flight on 26 March 1939.

In 1940, the United States Army Air Corps ordered them under the designation AT-8 as multi-engine advanced trainers.

Thirty-three AT-8s were built for the U.S. Army Air Corps, and production continued under the designation AT-17 reflecting a change in equipment and engine types. In 1942, the U.S Army Air Force (the successor to the Air Corps from June 1941) adopted the Bobcat as a light personnel transport and those delivered after January 1, 1943 were designated UC-78s. By the end of World War II, Cessna had produced more than 4,600 Bobcats for the U.S. military, 67 of which were transferred to the United States Navy as JRC-1s. In addition, 822 Bobcats had been produced for the Royal Canadian Air Force as Crane Is, many of which were used in the British Commonwealth Air Training Plan. The aircraft did not last long in North American postwar military service. Few (if any) Bobcats were in service with the United States Air Force when it was formed in September, 1947. Surviving military aircraft were declared obsolete in 1949.

...
Wikipedia