Stinson Airliner

The Stinson SM-6000 Airliner was a 1930s three-engined (trimotor) ten-passenger airliner designed and built by the Stinson Aircraft Corporation. The SM-6000 was a high-wing braced monoplane with room for a pilot and a cabin for ten passengers. It was powered by three 215 hp (160 kW) Lycoming R-680 engines strut-mounted one each side above the main landing gear units and one in the nose. A number of variants were built mainly with improved interiors. In 1932 the Model U Airliner was produced which had low-set stub wings with additional two engines mounted on each wing complementing the existing nose mounted center engine.

Variants

 * Corman 6000
 * The initial prototypes produced by the Corman aircraft Co. as part of the E L Cord empire.


 * SM-6000 Airliner
 * 1930 initial production variant with three 215hp (160kW) Lycoming R-680 engines.


 * SM-6000-A Airliner
 * 1930 variant available with different interior configurations.


 * SM-6000-B1 Airliner
 * 1931 all-passenger variant with better interior equipment.


 * SM-6000-B2 Airliner
 * As the B1 but with a mixed mail/passenger interior.


 * Model U Airliner
 * 1932 improved model with three 240hp (179kW) Lycoming R-680-BA engines on stub wings.


 * C-91
 * United States military designation for one SM-6000-A (s/n 42-79547) impressed into service in 1942.

Survivors
Only two of these high-wing models are known to exist. One is owned and operated by Mid America Flight Museum in Mount Pleasant, TX, the other by Kermit Weeks and is maintained in airworthy condition at Fantasy of Flight in Polk City, Florida.

Operators

 * American Airways
 * Boston-Maine Central Vermont Airways
 * Century Airlines
 * Chesapeake Airways
 * Chicago and Southern Airlines
 * Delta Air Lines
 * National Airlines System
 * New York, Philadelphia and Washington Airway Corporation aka Ludington Airline
 * Rapid Air Lines
 * 🇵🇭 Philippines
 * INAEC Iloilo Negros Air Express Company
 * INAEC Iloilo Negros Air Express Company