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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What a start to the season!

The early birds did it. Elmar Fischer and Reinhard Schramme struck in the first few days. Here is Elmar's report:

Loading of gliders in 2025

On the weekends of September 6/7, 2025, and September 13/14, 2025, 30 gliders were loaded into seven containers to begin the long journey to Bitterwasser, Namibia.

All gliders are very well booked. There are still a few slots available at the beginning of November. If you are interested, please contact  hog@bitterwasser.com.