- Folkerts SK-1
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Folkerts SK-1 Role Racing aircraft National origin United States of America Manufacturer Mono-Aircraft Corp Designer Clayton Folkerts Introduction 1930 Number built 1 The Folkerts SK-1,Speed King One, Mono Special, Matilda, Fordon-Neumann Special, Hardwick-Whittenbeck Special was a racer built for the 1930 American Cirrus Aircraft Engine Company sponsored American Cirrus Derby.[1]
Contents
Development
Clayton Folkerts designed the "Mono Special" while working for the Mono-Aircraft Corporation. It was later renamed the SK-1. [2]
Design
The aircraft was a strut-braced mid-winged conventional geared aircraft with a slender tapered tail and undersized wheels and fairings.
Operational history
- 1930 American Cirrus Derby, John Livingston was hired, but Stub Quimby flew in his place after an illness. The team did not win any earnings.
- 1930 National Air Races Quimby placed fourth in the 650 Cubic inch class at 142 mph.
- 1933 American Air Races The aircraft was renamed the Folkerts SK-1, with modified lift struts and addition of wheel pants. The aircraft won first place twice in the 350 Cubic inch class, and third in the 500 cubic inch class piloted by Harold Neumann, and fifth piloted by Marcellus King.[3]
- 1933 International Air Races - Roy Ligget, and Roy Hosler won two fifths and one fourth at a speed of 170mph.
- 1934 Pan American Air Races - Renamed to "Matilda".
- 1935 National Air Races[4] - Raced as the "Fordon-Neumann Special" placed second at 187mph with a modified headrest fairing.
- 1937 National Air Races - Raced as the "Hardwick-Whittenbeck Special" [5]
Specifications (Folkerts SK-1)
Data from Sport Aviation
General characteristics
- Capacity: 1
- Powerplant: 1 × Cirrus 310 cubic inch Inline four cylnder supercharged., 90 hp (67 kW)
Performance
- Maximum speed: 162 kn; 301 km/h (187 mph)
See also
- Related development
- Folkerts SK-2
- Folkerts SK-3
- Folkerts SK-4
Notes
References
- ^ "National Air Races". http://www.airrace.com/Pre-warNational.htm. Retrieved 31 May 2011.
- ^ Sport Aviation. September 1958.
- ^ Sylvester H. Schmid, Truman C. Weaver, EAA Aviation Foundation. The Golden Age of Air Racing: 1927-1933.
- ^ Thomas G. Matowitz. Cleveland's National Air Races.
- ^ Sport Aviation. September 1958.
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