Jonker JS-1 Revelation

The JS-1 Revelation is a 18 metre class glider built of glass-fibre, carbon fibre and Kevlar.

The manufacturer is Jonker Sailplanes of Potchefstroom South Africa, founded in 2004 by two brothers, Attie and Uys Jonker. The designer is Attie Jonker, while the airfoil was developed by Johan Bosman in co-operation with the Delft University of Technology. The wing has full-span flaperons, an elliptical planform and uses winglets. It is in 4 pieces, each tip is 1.5 metres.

Two novel features are:
* a double-hole blowing/suction system in the wings to minimise drag. The two rows of blow holes on the lower surface prevent turbulent flow at specific locations for different flap settings, thus reducing drag
* a jet engine for the self-sustaining version. A self launching version is to be developed.

The first flight of the JS-1 was on 12 December 2006. After certification, series production of the JS-1 Revelation is expected to start at the end of 2007.Fact|date=June 2007

Attie won the 18 metre class South African National Championship in 2008 with a JS-1 Revelation.

References

* [http://www.jonkersailplanes.co.za/main1.htm Jonker Sailplanes CC]
* [http://www.jonkersailplanes.com Jonker Sailplanes Inc]