https://en.wikipedia.org/wiki/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 an engine
mounted at each wingtip.
Role
Three-engined airliner
National origin
United States
Manufacturer
Stinson Aircraft Corporation
Number built
53 (SM-6000)
24 (Model U)
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.
Specifications (SM-6000-B)
General characteristics
Crew: two
Capacity: ten (B1), eight (B2)
Length: 42 ft 0 in (12.8 m)
Wingspan: 60 ft 0 in (18.29 m)
Height: 12 ft 0 in (3.66 m)
Wing area: 490 ft2 (45.6 m2)
Empty weight: 5,670 lb (2,620 kg)
Gross weight: 8,600 lb (3,910 kg)
Performance
Maximum speed: 146 mph (234 km/h)
Cruise speed: 125 mph (200 km/h)
Range: 390 miles (628 km)
Service ceiling: 14,200 ft (4,330 m)
Rate of climb: 1,000 ft/min (5.1 m/s)
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