Maupin Woodstock One Explained

The Maupin Woodstock One is an American high-wing, single-seat glider designed by Jim Maupin and made available as plans for amateur construction.[1] [2]

Design and development

The Woodstock was designed in the late 1970s by Maupin, with assistance from Irv Culver, who designed the airfoil for the wing. Culver's airfoil is of 18% thickness at the root, thinning to 13% thickness at the wing tip 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 tail and wing covering are birch. The wing and tailplane ribs are made in pairs from marine-grade fir plywood using a bandsaw. The wing spar is a hollow box for the first 81NaN1 from the root and then changes to a "C-section" outboard. Top surface spoilers are provided.

The main landing gear is an 110NaN0 go-cart 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.

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.[3] 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.[4] In August 2000 Osoba set the US National and World Record for the Ultralight Category for speed around a 1000NaN0 triangle of 52.40NaN0 in his Woodstock. Also in August 2000, Osoba flew his Woodstock to a US National and World Record for Out and Return Distance of 162.090NaN0.[5] In July 2008 Osoba flew his Woodstock on a flight of over 7910NaN0 from Zapata, Texas to northeast of Lubbock, Texas, 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 1750NaN0.[6] [7]

In May 2002 Matt Michael established 7 Iowa State Records for Distance to a Declared goal for a flight of 233.810NaN0 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 252.560NaN0 in his Woodstock. In that same flight, he set the Iowa State Altitude and Altitude Gain records at 112000NaN0 and 84000NaN0, respectively.[8] [9]

Variants

Woodstock One
  • Original prototype with 391NaN1 wingspan.
    Woodstock (12.5m)
  • Version with 41.51NaN1 wingspan.
    Woodstock (13m)
  • Version with 431NaN1 wingspan.

    Notes and References

    1. Web site: Woodstock Maupin. 23 April 2011. Activate Media. 2006. https://web.archive.org/web/20120819215948/http://www.sailplanedirectory.com/PlaneDetails.cfm?PlaneID=385. 19 August 2012. dead.
    2. Said, Bob: 1983 Sailplane Directory, Soaring Magazine, page 34. Soaring Society of America, November 1983. USPS 499-920
    3. Dittert. Bob. The 1998 Motorglider Nationals and Region Nine Competition. Soaring. October 1998. 62. 10. 17.
    4. Ruprecht. Judy. Badges & Records. Soaring. July 1998. 62. 7. 44.
    5. Coleson. Arleen. Badges & Records. Soaring. March 2001. 65. 3. 40, 41.
    6. Web site: Flight information - Gary Osoba (US) - 19.07.2008 . 6 July 2011.
    7. Web site: World Record Claims - Class D (Gliders). 6 July 2011. https://web.archive.org/web/20110514150215/http://records.fai.org/data?v1=278. 14 May 2011. dead.
    8. Ruprecht. Judy. Badges and Records. Soaring. November 2006. 70. 11. 42.
    9. Ruprecht. Judy. Badges & Records. Soaring. December 2006. 69. 12. 48.