# Gehrlein GP-1

> Mediated Wiki article. Canonical URL: https://mediated.wiki/source/Gehrlein_GP-1
> Markdown URL: https://mediated.wiki/source/Gehrlein_GP-1.md
> Source: https://en.wikipedia.org/wiki/Gehrlein_GP-1
> Source revision: 1321146109
> License: Creative Commons Attribution-ShareAlike 4.0 International (https://creativecommons.org/licenses/by-sa/4.0/)

The **Gehrlein GP-1** is an American [mid-wing](/source/Mid-wing), single seat [FAI Standard Class](/source/FAI_Standard_Class) [glider](/source/Glider_(sailplane)) that was designed by Jay and Rod Gehrlein and first flown in July 1968.[1][2]

## Design and development

When their father, glider pilot [Larry Gehrlein](/source/Larry_Gehrlein) was on an extended vacation, his two sons, Rod and Jay decided to design and build a new glider as a surprise for his return. The resulting GP-1 was designed and built in under a year, between the summer of 1968 and the summer of 1969.[1][2]

Unlike Larry Gehrlein's earlier [Gehrlein Precursor](/source/Gehrlein_Precursor), the GP-1 is an original design and uses no [Schweizer Aircraft](/source/Schweizer_Aircraft) parts in its construction.[2]

The GP-1 is an all-metal aircraft, with a 15 m (49.2 ft) wingspan. The wing is of a constant 30 in (76 cm) chord and employs a Wortmann FX-61-184 [airfoil](/source/Airfoil). Glide path control is via a set of scissor-type [spoilers](/source/Spoiler_(aeronautics)) and [air brakes](/source/Air_brake_(aircraft)). The design was intended to be simple to construct. Kits were at one time offered for sale with at least five aircraft being completed.[1][2]

## Operational history

In May 2011 there were still four GP-1s on the [Federal Aviation Administration](/source/Federal_Aviation_Administration) registry.[3]

## References

1. Activate Media (2006). ["GP-1 Gehrlein"](https://web.archive.org/web/20120819220225/http://www.sailplanedirectory.com/PlaneDetails.cfm?PlaneID=125). Archived from [the original](http://www.sailplanedirectory.com/PlaneDetails.cfm?PlaneID=125) on 19 August 2012. Retrieved 11 May 2011.

1. Said, Bob: *1983 Sailplane Directory, [Soaring Magazine](/source/Soaring_Magazine)*, page 43. [Soaring Society of America](/source/Soaring_Society_of_America) November 1983. USPS 499-920

1. [Federal Aviation Administration](/source/Federal_Aviation_Administration) (May 2011). ["Make / Model Inquiry Results"](https://web.archive.org/web/20120804205914/http://registry.faa.gov/aircraftinquiry/AcftRef_Results.aspx?Mfrtxt=&Modeltxt=GP-1&PageNo=1). Archived from [the original](http://registry.faa.gov/aircraftinquiry/AcftRef_Results.aspx?Mfrtxt=&Modeltxt=GP-1&PageNo=1) on August 4, 2012. Retrieved 15 May 2011.

---
Adapted from the Wikipedia article [Gehrlein GP-1](https://en.wikipedia.org/wiki/Gehrlein_GP-1) by Wikipedia contributors ([contributor history](https://en.wikipedia.org/wiki/Gehrlein_GP-1?action=history)). Available under [Creative Commons Attribution-ShareAlike 4.0 International](https://creativecommons.org/licenses/by-sa/4.0/). Changes may have been made.