The Maupin Woodstock One is an American

high-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 ...

, single-seat

glider Glider may refer to: Aircraft and transport Aircraft * Glider (aircraft), heavier-than-air aircraft primarily intended for unpowered flight ** Glider (sailplane), a rigid-winged glider aircraft with an undercarriage, used in the sport of glidin ...

Soaring Magazine ''SOARING'' is a magazine published monthly as a membership benefit of the Soaring Society of America. It was first published in 1937. The headquarters is in Hobbs, New Mexico. The magazine's article topics include safety issues and accounts of in ...

'', page 34. Soaring Society of America, November 1983. USPS 499-920

Design and development

The Woodstock was designed in the late 1970s by Maupin, with assistance from

Irv Culver Irven Harold Culver (May 11, 1911 – August 13, 1999) was an American aeronautical engineer. Most notable of all his accomplishments, Culver is credited for solving a fatal flaw in the Lockheed P-38, related to high-speed compressibility pr ...

, who designed the

airfoil An airfoil (American English) or aerofoil (British English) is the cross-sectional shape of an object whose motion through a gas is capable of generating significant lift, such as a wing, a sail, or the blades of propeller, rotor, or turbine. ...

for the wing. Culver's airfoil is of 18% thickness at the

root In vascular plants, the roots are the organs of a plant that are modified to provide anchorage for the plant and take in water and nutrients into the plant body, which allows plants to grow taller and faster. They are most often below the sur ...

, thinning to 13% thickness at the

wing tip A wing tip (or wingtip) is the part of the wing that is most distant from the fuselage of a fixed-wing aircraft. Because the wing tip shape influences the size and drag of the wingtip vortices, tip design has produced a diversity of sha ...

and incorporates no washout. The aircraft's design goals were low cost and simplicity of construction. Four design principles were employed: using the least expensive materials, using as little material as possible, keeping the design simple and utilizing as many common parts as possible. The resulting airframe is all-wood, with the major structural parts fabricated from

Douglas fir The Douglas fir (''Pseudotsuga menziesii'') is an evergreen conifer species in the pine family, Pinaceae. It is native to western North America and is also known as Douglas-fir, Douglas spruce, Oregon pine, and Columbian pine. There are three va ...

. The tail and wing covering are

birch A birch is a thin-leaved deciduous hardwood tree of the genus ''Betula'' (), in the family Betulaceae, which also includes alders, hazels, and hornbeams. It is closely related to the beech-oak family Fagaceae. The genus ''Betula'' contains 30 ...

. The wing and

tailplane A tailplane, also known as a horizontal stabiliser, is a small lifting surface located on the tail (empennage) behind the main lifting surfaces of a fixed-wing aircraft as well as other non-fixed-wing aircraft such as helicopters and gyroplane ...

ribs are made in pairs from marine-grade fir

plywood Plywood is a material manufactured from thin layers or "plies" of wood veneer that are glued together with adjacent layers having their wood grain rotated up to 90 degrees to one another. It is an engineered wood from the family of manufactured ...

using a

bandsaw A bandsaw (also written band saw) is a power saw with a long, sharp blade consisting of a continuous band of toothed metal stretched between two or more wheels to cut material. They are used principally in woodworking, metalworking, and lumb ...

. The wing

spar SPAR, originally DESPAR, styled as DE SPAR, is a Dutch multinational that provides branding, supplies and support services for independently owned and operated food retail stores. It was founded in the Netherlands in 1932, by Adriaan van Well, ...

is a hollow box for the first from the root and then changes to a "C-section" outboard. Top surface spoilers are provided. The main landing gear is an

go-cart A go-kart, also written as go-cart (often referred to as simply a kart), is a type of sports car, close wheeled car, open-wheel car or quadracycle. Go-karts come in all shapes and forms, from non-motorised models to high-performance racing ...

wheel mounted as a fixed monowheel, with a brake fashioned from aluminium sheet and employed as a band brake, actuated by a bicycle brake lever mounted on the

control stick A joystick, sometimes called a flight stick, is an input device consisting of a stick that pivots on a base and reports its angle or direction to the device it is controlling. A joystick, also known as the control column, is the principal cont ...

Operational history

The Woodstock won first place in the 1984 Sailplane Homebuilders Association design contest. In 1998 Gary Osoba won the US Region 9 Sports Class contest in his Woodstock. In April 1998, Osoba earned US National and World Records in the Ultralight Category for Straight Distance, Distance to a Goal, and Distance up to Three Turnpoints for a flight of 340 miles in his Woodstock. In August 2000 Osoba set the US National and World Record for the Ultralight Category for speed around a triangle of in his Woodstock. Also in August 2000, Osoba flew his Woodstock to a US National and World Record for Out and Return Distance of . In July 2008 Osoba flew his Woodstock on a flight of over from

Zapata, Texas Zapata is a census-designated place (CDP) in and the county seat of Zapata County, Texas, United States. The population was 14,018 at the 2010 census. As an unincorporated community, Zapata has no municipal government but like all 254 Texas count ...

to northeast of

Lubbock, Texas Lubbock ( ) is the 10th-most populous city in the U.S. state of Texas and the seat of government of Lubbock County. With a population of 260,993 in 2021, the city is also the 85th-most populous in the United States. The city is in the northw ...

, likely the longest distance flight ever achieved in a Woodstock. The flight was not documented to World Record standards but beat the standing Ultralight Free Distance World Record by nearly . In May 2002 Matt Michael established 7 Iowa State Records for Distance to a Declared goal for a flight of in his Woodstock. In May 2003 Michael established 10 Iowa State Records for Triangle Distance and Distance up to 3 Turnpoints for a flight of in his Woodstock. In that same flight, he set the Iowa State Altitude and Altitude Gain records at and , respectively.

Variants

;Woodstock One :Original prototype with wingspan. ;Woodstock (12.5m) :Version with wingspan. ;Woodstock (13m) :Version with wingspan.

Specifications (prototype)

References

{{Jim Maupin aircraft 1970s United States sailplanes Aircraft first flown in 1978

Design and development

Operational history

Variants

Specifications (prototype)

See also

References