Orville Wogen
Lake Mills IA.
USA
Built the ‘Sport Wing’ in 1931.
Orville Wogen
Lake Mills IA.
USA
Built the ‘Sport Wing’ in 1931.

Steve Wittman designed and built two Goodyear racers, Buster and Little Bonzo, named after two comic strip characters he had enjoyed in the 1930s. Goodyear rules specified a minimum weight of 500 pounds, and Little Bonzo came out at 508 pounds. Being the stickler he always was for simplicity and lightweight, Steve begrudged the unnecessary eight pounds. Steve’s guiding principle of aircraft design was “keep it simple, stupid.”
Steve flew Little Bonzo, N1292, for the first time on July 16, 1948 and logged just under ten hours on the airplane before entering a race. Little Bonzo’s first race was the second annual Goodyear Trophy race in which Steve placed second, kicking off a 40 year racing and air show career for Little Bonzo in which the racer would win a room full of plaques and trophies, not to mention pay for itself many times over.
Some of the highlights of Little Bonzo’s career include winning the Continental Trophy races in 1949, 1950, and 1952, winning the Rebat Trophy in 1950 and 1951, and winning his own race at Oshkosh in 1956 and 1957 as well as the Lowers-Baker-Falck cross-country races. Little Bonzo won scores of small races around the country, so many in fact, that Steve lost count.

Unlike modern racers that are disassembled and towed to races, Little Bonzo flew to every event it participated in. In fact, Little Bonzo was not just a racer, but also an avid air show performer. Steve was in big demand during the postwar years as an air show performer, and he used Little Bonzo to put on demonstrations of high-speed aerobatics. With the lighter wing loading of his racer, however, Steve could do continuous loops right off the deck, with snaps on the top. Amazingly, Steve often performed his air show routine between heat races.
In 1968, the Goodyear rules were changed to allow use of the Continental O-200 engine, and in August of the following year, Steve removed the original Continental C-85 and replaced it with an O-200.

Little Bonzo participated in its last Goodyear race on July 8, 1973 at Du Page, Illinois. The racer was not flown again until Memorial Day weekend to participate in an air show. Steve flew Little Bonzo a couple of hours over Independence Day weekend and then parked the airplane for four years, though the little racer was kept in license. In 1978, Steve dusted off Little Bonzo and began winning races again.
Finally, in 1987, Little Bonzo was in need of a rebuild, its first major work since the airplane was constructed. After the rebuild, Steve flew the airplane for two fifteen-minute test flights before he decided to donate Little Bonzo. Steve restored his racer to its original configuration by installing a Continental C-85 and Little Bonzo was officially donated to EAA at a ceremony during the Oshkosh Fly-In in 1994. Little Bonzo now hangs alongside its namesake, Big Bonzo on display in the EAA AirVenture Museum Racing Gallery.
Engine: Continental C-85
Wing Span: 15 ft. 4 in.
Length: 19 ft.
Height: 4 ft. 9 in.
Empty Weight: 508 lbs.
Fuel Capacity: 15 gal.

The Buster R/NX14855 (rebuilt from the fuselage of ‘Chief Oshkosh’) was Steve’s first Goodyear raceplane. Built in 1946, raced 1947-54. Piloted by Bill Brennand, Bob Porter, and others, it was retired from racing in 1954.

Bill Brennand won in Buster, the next year took fourth place, and the next year top prize and the Goodyear Trophy.

Engine: Continental C-85, 85hp
Wingspan: 16’0″
Length: 17’10”
Seats: 1

The Wittman D.12 Bonzo NX13688 was designed and built by Steve Wittman as a contender for the prestigous Thompson Trophy, built in 1934, raced 1935-39, the last to use a water-cooled engine. It was ultimately capable of over 325 mph.
The bright red Bonzo, fully restored, graces the EAA AirVenture Museum in Oshkosh.

Engine: 435hp Curtiss D-12
Wingspan: 15’4″
Length: 17’6″
Seats: 1

Steve Wittman’s first racing plane, Chief Oshkosh NR12047 and NR14855, was built in 1931 for the Nationals. Powered by a 90hp Cirrus, it was repowered with a 115hp Cirrus Hermes in 1932, and 125hp Menasco C-4 c.1935. Published plans shown many variations, typical of racing aircraft—1931: span: 18’9″ length: 17’9″; 1933: span: 15’6″ length: 18’4″; 1935: span: 14’6″ length: 19’4″; 1937: span: 12’6″ length: 19’6″.
It crashed in 1938 and was rebuilt in 1947 as midget racer Buster.
Engine: Cirrus, 90hp
Wingspan: 16’0″
Length: 17’10”
Seats: 1
A midwing single-seat open, monoplane powered by a Henderson motorcycle engine, and capable of short hops only. Steve Wittman built it when he was 19 years of age (in 1923) and tried to teach himself to fly. It was not able to clear the barbed-wire fence around the field.
Engine: Harley-Davidson, 14hp
Wingspan: 20’0″
Length: 17’0″
Seats: 1

Sylvester “Steve” Wittman built two types of airplanes: Racing machines and Travel machines. The ancestors of these two blood lines were Chief Oshkosh and Buttercup. The Buttercup was built as a utility hauler, and there was only one made, in 1937, NX/N18268. Initially powered by a 50hp Lycoming O-145, then an 85hp Continental A-85, he flew it all over the western hemisphere, from Alaska to Bermuda, Florida to Oregon. The Buttercup almost made it into production (cancelled due to WWII) coming to the interest of Fairchild as a four-place project, called the ‘Big X.’ One plane was built for them by “Witt” – a 4-place, 6 cylinder, 130 HP Franklin powered prototype.
The real genius of the Buttercup design is Wittman’s claim of 38-40 mph (indicated) slow-flight speed and a near 150 mph top speed, and all on 85 hp! The high speed is vintage Wittman, the low speed is due to an ingenius flap-coupled, retracting lead edge design (seen in today’s airliners). Earl Luce of LuceAir, Inc. has ‘revived’ the Buttercup, featured in the April 2003 issue of Sport Aviation. Kits and fabricated assemblies for the Buttercup are available from Aircraft Spruce.
Engine: Continental A-85, 85hp
Wingspan: 28’6″
Length: 21’0″
Useful load: 550 lb
Max speed: 147 mph
Cruise: 135 mph
Stall: 40 mph
Range: 540 sm
Seats: 2
Sylvester Joseph “Steve” Wittman was born April 5, 1904, at Byron, Wisconsin, and attended Fond du Lac High School.
Wittman gained his pilot’s certificate in 1924 (signed by Orville Wright) in a Standard J-1 and built his first aircraft, the Harley powered “Hardly Abelson” later that same year.
From 1925 to 1927, he had his own flying service, giving joyrides and during this time also became a demonstration and test pilot for the The Pheasant Aircraft Company and Dayton Aircraft Company, flying the Pheasant H-10 in multiple events. He also began his air-racing career, designing, building, and piloting his own aircraft, including Chief Oshkosh in 1931 and Bonzo in 1934. Wittman’s first race in his first aircraft design was in “Bonzo” in the 1935 Thompson Trophy race, where he placed second.
In 1937, piloting his second homebuilt, “Chief Oshkosh”, Wittman placed second in the Greve Trophy Race. Wittman flew “Bonzo” in the Thompson Trophy race, and he led for the first 18 laps of the 20 lap race, at an average speed of over 275 mph (442.57 km/h). Suddenly his engine began to run rough, and Wittman was forced to throttle back to remain in the race, finishing in 5th place. In 1938, he was awarded the Louis Blériot medal by the Fédération Aéronautique Internationale (FAI).
Possibly the Tailwind W-8 had its real beginnings in 1937 as the “Buttercup,” a ship that featured many innovations pioneered by Wittman on his racing aircraft, such as spring steel gear and welded steel frame. A high wing design built to outperform the Cubs, Chiefs, T-Crafts, and Luscombes of the day. The Tailwind bore a striking resemblance to the ’37 Buttercup except for Buttercup’s obvious outward differing features, like the two lift struts and wire braced tail feathers. But the W-5 and W-8 are sister ships, or at the very least, cousins. (At last report, the W-5 is still airworthy.) Another cousin is the Wittman Big-X, the four-place, Franklin-powered machine based on the Buttercup design. The Big-X flew for the first time in 1945 and was another Wittman winner. The Big-X and the Tailwind have all the same things going for them: speed, efficiency and ease of handling. It has recently been restored and is going strong.
Steve’s spring steel landing gear used on the pre-World War II “Bonzo” racer was the last word in simplicity and low drag, ail the while remaining strong and flexible. The Wittman landing gear appeared on all postwar Cessnas another plus for Yankee engineering.
Wittman’s “Buster” racer of the late ’40s was typical of the small postwar racers that were hitting 240 mph with little 85-hp engines. Steve reasoned that you could scale up a racer by widening the cockpit, move the wing topside and only lose about 75 mph in the process. The result was a simple, flat-sided cabin ship whose fuselage resembled an airfoil; it had small, wellbalanced control surfaces, and the only thing sticking out in the wind was the paint job. Steve liked his two-placer that could hit 150 mph cruise so much that he brought out the Tailwind in the early ’50s – not as a projected prototype for-selling plans, but as a peron’al airplane to carry two people comfortably with a Continental C-85 up front. It worked.
During World War II, his Wittman Flying Service was part of the Civilian Pilot Training Program, training pilots for the Army Air Corps.
After the war, Wittman finished eighth in the 1946 Thompson Trophy race with a clipped wing Bell P-63 Kingcobra fighter. In 1947, Bill Brennand won the inaugural Goodyear class race at the National Air Races piloting Wittman’s ‘Buster’. ‘Buster’ was a rebuild of the pre-war “Chief Oshkosh”, went on to win many more Goodyear/Continental Trophy races, and was retired after the 1954 Danville, New York air races. It is now on display at the National Air and Space Museum in Washington, D.C.
Wittman built an entirely new ‘Bonzo’ for the 1948 National Air Races, and flying it himself, finished third. Wittman raced ‘Bonzo’ through the 1950s and 1960s, including the first few Reno National Championship air races, before retiring from Formula One competition in 1973. ‘Bonzo’ is now displayed next to Wittman’s prewar ‘Bonzo’ in the EAA AirVenture Museum along with several other Wittman airplanes.
Wittman was manager of the Oshkosh, Wisconsin airport from 1931 to 1969 – which is now named after him (Wittman Regional Airport). Wittman became involved in the newly formed Experimental Aircraft Association in 1953 and was instrumental in bringing the EAA’s annual fly-in to the Oshkosh Airport in 1970.
He designed and built the Wittman V-Witt to compete in the new Formula V Air Racing class. He competed in races with that aircraft until 1979. Winners of the Formula V National Championship are presented with the Steve Wittman Trophy.
Wittman remained active in aviation his entire life. For Wittman’s 90th birthday a celebration, Wittman demonstrated aerobatic maneuvers in his V-Witt and Oldsmobile powered Tailwind. He also used “Buttercup” to give Young Eagles flights. Letters of appreciation were given by President Bill Clinton and Wisconsin Governor Tommy Thompson.
Steve married Dorthy Rady in 1941. He taught her to fly and she accompanied him to most of his races. Dorthy died in 1991 and Wittman married Paula Muir in 1992. On April 27, 1995, Wittman and Muir took off for a routine cross-country flight from their winter home in Ocala, Florida to their summer home in Oshkosh, Wisconsin. The Wittman “O&O” N41SW (41 for 1941, year of his first marriage, plus SW, his initials) crashed five miles south of Stevenson Alabama, killing both Steve and Paula. The cause was improper installation of the wing fabric, causing it to debond, resulting in aileron/wing flutter.
In 2014, Wittman was inducted into the National Aviation Hall of Fame.
Wittman Designed Aircraft:
Wittman Hardley Ableson
Wittman Chief Oshkosh
Wittman D-12 Bonzo
Wittman DFA Little Bonzo
Wittman Buttercup
Wittman Big X
Wittman Tailwind
Wittman V-Witt
Wittman O & O Special

In 1905, Charles, Paul and Walter (1896-1980) Wittemann opened the first airplane manufacturing plant in the United States on their family estate in Staten Islad. After experimenting with gliders, they designed and built their first airplane in 1906 and continued to manufacture a number of experimental planes and models until their ever-increasing production forced their move to a more spacious building on the north edge of the Newark meadows.
(Charles and Adolph) Wittemann Aeronautical Engineers
Ocean Terrace & Little Clove Rd
Staten Island NY.
USA
In 1907 the firm built a single-place, open cockpit biplane, powered by a 40hp Wright pusher. This featured a swivelling tailwheel, which was quite an advance in technology back then.
1907 also saw a single-place open cockpit triplane, powered by a 40hp Wright pusher.
Between 1908 and 1914 the firm built many planes, including Curtiss-type, single-place, open-cockpit biplanes, for notables of the time: Bud Mars, Ruth Law, Capt Thomas Baldwin, Lincoln Beachey, Cecil Peoli, Harold Blakesley, and others.
During 1911 the firm was involved in the construction of the Baldwin Red Devil III.
1916: Newark NJ. Aeronautical construction engineers of Newark, New Jersey. Rebuilt Airco D.H.4s to DH-4B standard for U.S. Army.
In 1917 they built a new plant at Teterboro Airport where the Wittemanns received the consent of the U.S. Army to convert unused DH-4 aircraft for the Post Office to be used for the first air mail postal service. The planes were modified to carry 400 lbs. of mail and in 1919 further improvements were made to accommodate 1000 lb. payloads. Approximately 75 of these single engine aircraft were produced at Teterboro.
c.1917: Wittemann-Lewis Aircraft Co Inc.
Had produced own-design mail carrier in 1920, when firm moved to Teterboro in 1919 (factory was eventually occupied by Fokker Corp). Contractors to US Post Office and USN for several aircraft.
During 1922-1923 built the Barling six-engined triplane bomber to Walter Barling’s design.
Built twin-engined Sundstedt-Hannevig seaplane 1923, for transatlantic attempt by Capt. Sundstedt.
During 1923, 25 de Havilland DH-4s were modified for mail carrying, powered by a 400hp Liberty 12. The last of the company’s efforts before filing bankruptcy.
In 1923 ended production to concentrate on engineering research. Of interest is that no Wittemann aircraft ever suffered a fatal or serious accident.
After bankruptcy in 1924, the firm property was acquired by Atlantic (Fokker).
Paul & Walter Wittemann were inducted in the Aviation Hall of Fame & Museum of New Jersey.

Around 1923, three Wissler Airplane Co WA-9 open cockpit biplanes featuring side-by-side seating were built, plus 4 unidentified planes built by others at Indianapolis and Sidney using various surplus Wissler components.
Engine: 80hp LeRhône
Wingspan: 32’0″
Length: 20’8″
Useful load: 545 lb
Max speed: 95 mph
Cruise speed: 80 mph
Stall: 30 mph
Range: 280 mi
Seats: 2