The Howard DGA-15 was a single-engine civil aircraft produced in the United States by the Howard Aircraft Corporation from 1939 to 1944. After the United States' entry into World War II, it was built in large numbers for the United States Navy and also served various roles in the United States Army Air Forces.
Howard DGA-15
A highly-modified, experimental DGA-15 equipped with an Alvis Leonides engine
DGA-15P modified by the Jobmaster Company; floats and horizontal stabilizer finlets added for improved control – Renton, Seattle, October 1973
Howard DGA-15P
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 plane was designed and developed by Ben Howard and Gordon Israel, who later became an engineer for the Grumman Aircraft Engineering Corporation. 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.
Howard DGA-6
Mister Mulligan replica at Oshkosh, Wisconsin, 2002