Stinson SM-6000 Airliner

The Stinson SM-6000 Airliner was a high-wing, braced-monoplane trimotor airliner of the early 1930s, built by the Stinson Aircraft Corporation with a pilot's compartment and a cabin for ten passengers. It grew out of prototypes built by the Corman Aircraft Company inside E. L. Cord's group. Three 215 horsepower Lycoming R-680 engines were mounted one in the nose and one on a strut above each main undercarriage unit. Production began in 1930 with the SM-6000 and the SM-6000-A, followed in 1931 by the SM-6000-B1 for passengers and the B2 for mixed mail and passengers, each with better interiors. In 1932 the Model U Airliner moved the side engines to low-set stub wings and used three 240 horsepower Lycoming R-680-BA engines. One SM-6000-A was impressed into United States military service in 1942 as the C-91, and only two of the high-wing aircraft are known to survive.