Lockheed L.9 Orion
Seeing, in the latter part of 1930, a potential market for a light transport aircraft, Lockheed began development of the six-passenger Lockheed 9 Orion. This combined a Vega fuselage with the low-wing and landing gear of the Altair, and the NACA cowling introduced on the Air Express, the first being flown in early 1931.
The first Orion (NC960Y) entered service with Bowen Air Lines at Fort Worth, Texas, in May 1931.
The type found use with 12 other American airlines. At least 13 of these aircraft, from various sources, were supplied to the Spanish Republican air force in late 1936, soon after the beginning of the Spanish Civil War.
Orion production totalled 35, and the single Altair DL-2A was also converted to Orion configuration.
Lockheed 9C Orion
Engine: Wright Cyclone 1820-E, 567 hp
Length: 28.051 ft / 8.55 m
Height: 9.514 ft / 2.9 m
Wingspan: 42.782 ft / 13.04 m
Max take off weight: 5402.3 lb / 2450.0 kg
Max. speed: 157 kts / 290 km/h
Service ceiling: 16732 ft / 5100 m
Range: 513 nm / 950 km
Lockheed 9D Orion
Engine: 1 x Pratt & Whitney Wasp S1D1 radial, 410kW / 450 hp
Max take-off weight: 2359 kg / 5201 lb
Empty weight: 1651 kg / 3640 lb
Wingspan: 13.04 m / 42 ft 9 in
Length: 8.64 m / 28 ft 4 in
Height: 2.95 m / 9 ft 8 in
Wing area: 27.32 sq.m / 294.07 sq ft
Cruise speed: 330 km/h / 205 mph
Ceiling: 6705 m / 22000 ft
Range: 1159 km / 720 miles
Pax cap: 5.