The Howard DGA-6 was a pioneer racing plane, nicknamed Mister Mulligan. It was the only airplane ever designed for the specific purpose of winning the Bendix Trophy. The Bendix Trophy was a cross-country race from the west coast to the site of the National Air Races in Cleveland, Ohio. Mister Mulligan was designed to fly the entire length of the race nonstop and at high altitude. Neither had ever been done before. Mister Mulligan won the trophy, and thus changed the way in which long distance airplanes were designed.