|National origin||United States of America|
|Designer||Clayton Folkerts, Harold Neumann, Ted Forden|
The Folkerts SK-2, also known as Speed King Two, "Toots" and "Miss Detroit" was a racer built for the 1936 National Air Races
Design and development
The aircraft was a mid-winged conventional geared aircraft with crank activated retractable landing gear and trailing edge flaps. The fuselage was built of welded steel tube with aircraft fabric covering and the wings were made with spruce spars and plywood covering. The Menasco C-4S engine featured a one foot propeller extension to allow a more streamlined cowling.
In the 1936 National Air Races, Harold Neumann won three firsts, two seconds, and placed fourth in the Thompson Trophy race. Steve Wittman survived a flight in the SK-2 with a ruptured gas tank that leaked into the cockpit. In St. Louis, pilot Roger Don Rae landed gear up, badly damaging the aircraft.
At the 1937 National Air Races, the aircraft was renamed "Miss Detroit" and pilot Roger Don Rae placed three seconds and one fourth place.
In the 1938 Oakland Air Races, the rear fuselage was metalized. Pilot Gus Gotch was chosen as pilot; he entered a spin on a pylon turn and was killed when the aircraft struck the bay. The cause was undetermined, but fellow racing pilots blamed the heavy locking mechanism for the landing gear as a contributing distraction in high-speed low level flight.
Specifications (Folkerts SK-1)
Data from Sport Aviation
- Capacity: 1
- Length: 19 ft 6 in (5.94 m)
- Wingspan: 16 ft (4.9 m)
- Height: 5 ft 3 in (1.60 m)
- Wing area: 50 sq ft (4.6 m2)
- Empty weight: 700 lb (318 kg)
- Gross weight: 1,000 lb (454 kg)
- Powerplant: 1 × Menasco C4S 363 cubic inch, inline, supercharged four cylinder aircraft engine, 185 hp (138 kW)
- Propellers: 2-bladed Fahlin
- Maximum speed: 202 kn; 375 km/h (233 mph)
- Related development
- Sport Aviation. October 1958.
- Aero Digest. October 1938.
- AAHS Journal (American Aviation Historical Society), Volume 34.
- "Aviation's Guinea Pigs." Popular Science, September 1938, pp. 92–93.
- Aeronautics, Volume 44, 1961.
- Foxworth, Thomas G. The Speed Seekers. New York: New York: Doubleday, 1976. ISBN 0-385-06050-5.
- Matthews, Birch. Race with the Wind: How Air Racing Advanced Aviation. Minneapolis, Minnesota: Zenith Publishing, 2001. ISBN 978-0-7603-0729-8.
- Matowitz, Thomas G. Jr. Cleveland's National Air Races (Images of Aviation). Mount Pleasant, South Carolina: Arcadia Publishing, 2006. ISBN 978-0-7385-3996-6.
- Schmid, Sylvester H. and Truman C. Weaver. The Golden Age of Air Racing: 1927-1933. Oshkosh, Wisconsin: EAA Aviation Foundation, 1983. ISBN 978-0-8168-7816-1.
- Vorderman, Don. The Great Air Races. New York: Doubleday, 1969.
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