The Jonker JS-3 Rapture is a glider built of glass-fibre, carbon fibre and Kevlar.

The structural and chief designer is Attie Jonker, while the airfoil and main aerodynamic features were developed by Johan Bosman in co-operation with the Delft University of Technology.

[5] The JS3 is equipped with Tost nose and centre of gravity release hooks, retractable main undercarriage leg with elastomeric shock absorbers, and a fixed pneumatic 180 mm (7.09 in) tail wheel with an aluminium hub.

A goose-neck microphone is optional, as are two independent speakers for radio, with the antenna in the rudder and a navigation computer in the instrument panel.

[6] The prototype flew in the 2017 World Gliding Championships[7] Data from JS 3 Rapture 18m – Jonker Sailplanes[6]General characteristics Performance