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.
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.
Stinson Airliner