The Boeing 247-D was the refinement of the first truly modern airliner. The 247, a derivative of the Model 200 Monomail and B-9 bomber, showed a substantial improvement over the Ford Tri-Motor, cutting eight hours from the coast-to-coast flying time, and was capable of carrying 10 people. The Museum's 247-D flew in the famous England-to-Australia air race of 1934.