1929 Lockheed Vega 5B Monoplane, Used by Explorer Donald MacMillan

With its sleek engine cowling, strut-free wing and streamlined body, the Lockheed Vega was among the most innovative airplane designs of the 1920s. Reductions in aerodynamic drag gave the Vega a top speed of 160 miles per hour, and it won numerous long-distance and closed-course races. This Vega was used on a mapping expedition and, later, in motion picture work.