Stewart S-51D Mustang
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The Stewart S-51D Mustang is an American
aerobatic 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 glid ...
homebuilt aircraft Homebuilt aircraft, also known as amateur-built aircraft or kit planes, are constructed by persons for whom this is not a professional activity. These aircraft may be constructed from "scratch", from plans, or from assembly kits.Armstrong, Kenn ...
that was designed by Jim Stewart and produced by Stewart 51 of
Vero Beach, Florida Vero Beach is a city in and the seat of Indian River County, Florida, United States. Vero Beach is the second most populous city in Indian River County. Abundant in beaches and wildlife, Vero Beach is located on Florida's Treasure Coast. It is thi ...
, introduced in 1994. When it was available the aircraft was supplied as a kit for amateur construction.Purdy, Don: ''AeroCrafter - Homebuilt Aircraft Sourcebook, Fifth Edition'', page 260. BAI Communications, 15 July 1998. The S-51D is a 70% scale version of the
World War II World War II or the Second World War, often abbreviated as WWII or WW2, was a world war that lasted from 1939 to 1945. It involved the vast majority of the world's countries—including all of the great powers—forming two opposin ...
P-51D Mustang Over twenty variants of the North American P-51 Mustang fighter were produced from 1940, when it first flew, to after World War II, some of which were employed also in the Korean War and in several other conflicts. Allison-engined Mustangs NA ...
fighter aircraft Fighter aircraft are fixed-wing military aircraft designed primarily for air-to-air combat. In military conflict, the role of fighter aircraft is to establish air superiority of the battlespace. Domination of the airspace above a battlefield ...
.


Design and development

Designer Jim Stewart took a leave of absence from his employer,
Pratt & Whitney Pratt & Whitney is an American aerospace manufacturer with global service operations. It is a subsidiary of Raytheon Technologies. Pratt & Whitney's aircraft engines are widely used in both civil aviation (especially airlines) and military aviat ...
, in 1989 to work on the S-51D's tooling and design. The prototype took flight on 30 March 1994 and by late June had completed its 40 hours of test flying. The S-51D Mustang features a cantilever
low-wing A monoplane is a fixed-wing aircraft configuration with a single mainplane, in contrast to a biplane or other types of multiplanes, which have multiple planes. A monoplane has inherently the highest efficiency and lowest drag of any wing confi ...
, a two-seats-in-
tandem Tandem, or in tandem, is an arrangement in which a team of machines, animals or people are lined up one behind another, all facing in the same direction. The original use of the term in English was in ''tandem harness'', which is used for two ...
enclosed cockpit under a
bubble canopy A bubble canopy is an aircraft canopy constructed without bracing, for the purpose of providing a wider unobstructed field of view to the pilot, often providing 360° all-round visibility. The designs of bubble canopies can drastically vary; so ...
, retractable
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 ...
, and a single engine in
tractor configuration In aviation, the term tractor configuration refers to an aircraft constructed in the standard configuration with its engine mounted with the propeller in front of it so that the aircraft is "pulled" through the air. Oppositely, the pusher c ...
. The aircraft is made from sheet
aluminum Aluminium (aluminum in American and Canadian English) is a chemical element with the symbol Al and atomic number 13. Aluminium has a density lower than those of other common metals, at approximately one third that of steel. It has ...
. Its span wing mounts flaps and has a wing area of . The cabin width is . The acceptable power range is . The specified propeller is a diameter, constant speed four-bladed
Hartzell Propeller Hartzell Propeller is an American manufacturer that was founded in 1917 by Robert N. Hartzell as the Hartzell Walnut Propeller Company. It produces composite and aluminum propellers for certified, homebuilt, and ultralight aircraft. The compan ...
unit, that is driven by a spur gear with a (2.13:1) reduction ratio. The S-51D Mustang has a typical empty weight of and a gross weight of , giving a useful load of . With full fuel of the payload for the pilot, passenger, and baggage is . The standard day, sea level, no wind, take off with a engine is and the landing roll is . The manufacturer estimated the construction time from the supplied standard kit as 2000 hours. A fast-build kit was also available.


Operational history

By 1998 the company reported that 72 kits had been sold and two aircraft were completed and flying. In March 2014, 12 examples were registered in the United States with the
Federal Aviation Administration The Federal Aviation Administration (FAA) is the largest transportation agency of the U.S. government and regulates all aspects of civil aviation in the country as well as over surrounding international waters. Its powers include air traffic m ...
, although a total of 19 had been registered at one time.


Specifications (S-51D Mustang)


See also

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Cameron P-51G __NOTOC__ The Cameron P-51G (originally Cameron Grand 51) is an American two-seat turboprop representation of the 1940s North American P-51 Mustang, designed and built by Cameron & Sons Aircraft of Coeur d'Alene, Idaho for sale as completed aircr ...
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Jurca Gnatsum The Jurca Gnatsum is a French homebuilt near scale replica aircraft based on the North American P-51 Mustang. Design & Development The Gnatsum (Mustang spelled backwards) is one of many wooden homebuilt designs from Romanian designer Marcel ...
*
Loehle 5151 Mustang The Loehle 5151 Mustang is a 3/4 scale replica of the P-51 Mustang, designed by Americans, American designer Carl Loehle. Its plans are provided for amateur builders. The aircraft has a wooden fuselage with Aircraft fabric covering, fabric coverin ...
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Papa 51 Thunder Mustang The Thunder Mustang is a modern 0.75 scale replica of the P-51 Mustang. It has joined the ranks of the high-performance P-51 kits alongside the Titan Aircraft T-51, which has a welded steel airframe with a secondary monocoque aluminum shell, the ...
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ScaleWings SW51 Mustang The ScaleWings SW51 Mustang, formerly marketed as the FK-Lightplanes FK51 Mustang, is an Austrian ultralight, light-sport aircraft and homebuilt aircraft that was designed by ScaleWings of Strasswalchen, Austria and was initially produced by ...
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W.A.R. P-51 Mustang The W.A.R. P-51 Mustang is a 53% near-scale homebuilt replica of a North American P-51 Mustang fighter.Downey, Julia: ''1999 Plans Aircraft Directory'', Kitplanes, Volume 16, Number 1, January 1999, page 71. Primedia Publications. Purdy, Don: ...
*
List of aerobatic aircraft An aerobatic aircraft is an aerodyne (a heavier-than-air aircraft) used in aerobatics, both for flight exhibitions and aerobatic competitions. Most fall into one of two categories, aircraft used for training and by flight demonstration teams, wh ...


References


External links


Photo of a Stewart S-51D Mustang
{{aerobatics
P-51D Mustang Over twenty variants of the North American P-51 Mustang fighter were produced from 1940, when it first flew, to after World War II, some of which were employed also in the Korean War and in several other conflicts. Allison-engined Mustangs NA ...
1990s United States sport aircraft Single-engined tractor aircraft Low-wing aircraft Homebuilt aircraft Aerobatic aircraft North American P-51 Mustang replicas Aircraft first flown in 1994