8 Sirius Single-engine, two-seat, long-range, high-performance aircraft; one built for Charles Lindbergh. Sirius 8 First production version, similar to the Lockheed 8 Sirius; one built. Sirius 8A Equipped with an enlarged tail surface; eight built. Sirius 8C Four-seat version fitted with an enclosed cabin seating two passengers, located between the engine and the pilot's cockpit; one built. DL-2 Metal fuselage and wooden wings. One built by the Detroit Aircraft Corporation. Operators Spanish Republican Air Force Specifications (Lindbergh's Sirius 8) See also List of Lockheed aircraft References Notes Bibliography Francillon, René J. Lockheed Aircraft since 1913. London: Putnam, 1982. ; External links Aircraft of the Smithsonian: Lockheed 8 Sirius Lockheed Sirius in Geneva (1933) Sirius 1920s United States civil utility aircraft Single-engined tractor aircraft Low-wing aircraft Aircraft first flown in 1929