1924. "Probably the smallest plane in the world. Built by Edmund Allen of Washington, D.C., who was formerly test pilot for Army Air Service during the world war. Plane is equipped with 9-horsepower motorcycle engine and weighs only 205 pounds with wingspread of 27 feet. Mr. Allen, in cockpit, flies it often and recently attained height of 1800 feet capable of making 63 mph."
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