Jonkers JS5 – Discovering the Namibian Sky

The latest flagship from Jonker Sailplanes, the JS5 Rey, has successfully completed its first flight in Namibia - in the world-famous thermal oasis of Bitterwasser. Thanks to excellent weather conditions, several 1000-kilometer flights have already been achieved.

With the JS5, Jonker Sailplanes sets new standards in the open class. The development focused on a lightweight structure for optimum climbing in weak thermals and exceptional glide performance at high speeds with a wingspan of 24.2 meters.


We are excited to see what record flights will be possible with this glider in the future!

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Leveling the Landing Area

Early October is the ideal time to prepare the runways for flight operations. You can land at the Bitterwasser Flying Lodge in every which direction—depending on how you look at it, on 8 runways (plus one emergency runway), each in two directions. Jeremias carefully levels the landing area over the course of several weeks.

The Long Journey to Africa

In early September, the containers holding the gliders for the 2026/27 season were loaded in Waghäusel. Transported by trailer, truck, and cargo ship, the gliders are now on their long journey to Namibia, to the Bitterwasser Flying Lodge.