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Lockheed Model 9 Orion
The Lockheed Model 9 Orion was a single-engined passenger aircraft built in 1931 for commercial airlines. It was the first airliner to have retractable landing gear and was faster than any military aircraft of that time. Designed by Richard A. Von Hake, it was the last wooden monoplane design produced by the Lockheed Aircraft Corporation.
==Design==
The Orion was the last design using many identical elements from the Lockheed designs preceding it. It primarily used all the elements of the Altair, but included a forward top cockpit similar to the Vega, plus the NACA cowling introduced in the Air Express.〔Eden, and Moeng, eds. 2002, p. 899.〕 Lockheed used the same basic fuselage mold and wing for all these wooden designs (the Explorer wing was unique), hence the close similarities between them. The Orion featured an enclosed cabin with seating for six passengers. The Orion received its Approved Type Certificate on May 6, 1931.〔Francillon, 1987.〕
Gerard F. Vultee was Lockheed's chief engineer in 1928 through 1931 and was involved in the designs of all the Lockheed variants of that time and specifically designed Charles Lindbergh’s Sirius.〔Vultee, Gerald. ( Fabrication of the Lockheed "Vega" Airplace-Fuselage ). Los Angeles Aeronautic Meeting Paper, November 1928.〕
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