The Shirlen Big Cootie is an American
homebuilt
Homebuilt machines are machines built outside of specialised workshops or factories. This can include different things such as kit cars or homebuilt computers, but normally it pertains to homebuilt aircraft, also known as amateur-built aircraft or ...
biplane that was designed by Roy Shirlen.
Design and development
The Big Cootie is a modernized version of the
Powell PH Racer
The Powell PH Racer was a 1920s air racer which held the distinction of having won all the races it entered.
Design and development
The aircraft was designed by Professor C.H. Powell, teacher at the Aeronautics Department of the University of D ...
biplane for homebuilt construction. The aircraft is a single seat biplane with
conventional landing gear
Conventional landing gear, or tailwheel-type landing gear, is an aircraft undercarriage consisting of two main wheels forward of the center of gravity and a small wheel or skid to support the tail.Crane, Dale: ''Dictionary of Aeronautical Term ...
, designed for mild
aerobatics
Aerobatics is the practice of flying maneuvers involving aircraft attitudes that are not used in conventional passenger-carrying flights. The term is a portmanteau of "aerial" and "acrobatics". Aerobatics are performed in aeroplanes and glide ...
. The
fuselage
The fuselage (; from the French ''fuselé'' "spindle-shaped") is an aircraft's main body section. It holds crew, passengers, or cargo. In single-engine aircraft, it will usually contain an engine as well, although in some amphibious aircraf ...
is welded steel tube construction with
aircraft fabric covering. The cowling is
fiberglass
Fiberglass (American English) or fibreglass ( Commonwealth English) is a common type of fiber-reinforced plastic using glass fiber. The fibers may be randomly arranged, flattened into a sheet called a chopped strand mat, or woven into glass clo ...
. The
ailerons are controlled with push-pull tubes. The wings use wooden
spars with
plywood leading edge
The leading edge of an airfoil surface such as a wing is its foremost edge and is therefore the part which first meets the oncoming air.Crane, Dale: ''Dictionary of Aeronautical Terms, third edition'', page 305. Aviation Supplies & Academics, ...
s.
Operational history
The prototype survived an in-flight impact with powerlines during its initial testing. It was rebuilt at the
Piedmont Aerospace Institute at
Smith Reynolds Airport
Smith Reynolds Airport is a public airport 3 miles (5 km) northeast of Winston-Salem in Forsyth County, North Carolina. The airport has two runways, and is used for general aviation and flight training as there is now no scheduled passenger ...
in
Winston-Salem, North Carolina
Winston-Salem is a city and the county seat of Forsyth County, North Carolina, United States. In the 2020 census, the population was 249,545, making it the second-largest municipality in the Piedmont Triad region, the 5th most populous city in ...
. A
Continental A-80
The Continental O-170 engine is the collective military designation for a family of small aircraft engines, known under the company designation of A50, A65, A75 and A80. The line was designed and built by Continental Motors commencing in the 194 ...
engine replaced the
Lycoming O-145
The Lycoming O-145 is a family of small, low-horsepower, four-cylinder, air-cooled engines. It was Lycoming Engines' first horizontally opposed aircraft engine and was produced from 1938 until the late 1940s. The family includes the reduction-ge ...
engine installed in the prototype.
Specifications (Shirlen Big Cootie)
See also
References
{{reflist
Homebuilt aircraft