A number of modification were done to the 11th Model 80A. It was given a new model number
The following is from Peter M Bowers' book, Boeing Aircraft since 1916
MODEL 226 - The Model 226 was the next-to-last aeroplane in the original batch of 12 Model 80As given a new model number and delivered to the Standard Oil Company of California as a deluxe executive transport under Memo 2-310 on December 20, 1930. The fuel capacity was increased to 658 gal, the passenger capacity was reduced, and a considerable amount of structural and aerodynamic refinement was incorporated. Large wheel fairings, or 'pants', were installed at the factory with anti-drag rings around the engines, but these were removed in service. The cabin was entirely different to that of the airline model and included a revised lavatory, two convertible day beds, six adjustable overstuffed chairs, two side tables, two folding tables, gasoline stove, refrigerator, sink, enlarged windows, and special upholstery and panelling.
Photo with P-12C, 31-197, which crashed 4 mi W of Utica, MI Mar 23, 1931.
