Dear JS3 RES pilots, owners, and valued customers, We are pleased to confirm that, following the revision of the Emergency Airworthiness Directive (EAD), all operational restrictions on the RES system have now been lifted. From today, 6 May 2026, and provided that all required Service Bulletin actions have been completed and properly signed off, the …
Great news for all JS3 RES pilots EASA has officially lifted the operational restrictions on the RES system following approval of the latest Service Bulletin. This means that, once the required Service Bulletin actions are completed and signed off, your aircraft can safely return to service. From 7 May 2026, JS3 RES gliders will be cleared to fly ag …
For the approximately 150 owners of the Jonker JS3 RES, of which approximately 15 are in the Nordic countries, the wait for the electric RES system to be allowed to fly again has been long. Yesterday, after a 10-month standstill, the long-awaited announcement came that EASA has approved the necessary major change to the engine system. For at least …
Status and Outlook The latest WeGlide Magazine article shares insights into the current status and outlook of Jonker Sailplanes — including developments around the JS5 , the JS2 Type Certification, the new balanced SOLO engine for JS2 and JS5, JS3 RES EAD update, the new JS4 Standard Class project, and the ongoing evolution of the JS glider lineup. Li …
Jonker Sailplanes 2026 “An Exciting Year Ahead” – Through the eyes of CEO Uys Jonker Happy New Year to all! After our summer break, JS is back in full swing and looking forward to an exciting year ahead. We are completing new product lines, introducing fresh projects into our development pipeline, and commissioning our new production facilitie …
Philip Lee’s Flight Across California’s Central Valley JS3 RES pilot Philip Lee of California recently flew from Minden, Nevada to his home field of Hollister, California by executing a brilliant (and seldom-attempted in the soaring community) glide across California’s Central Valley. He conservatively elected to depart Minden usin …
The German Nationals in Open, 18m, and Double Seater class recently concluded, providing pilots with exceptional weather conditions over the past two weeks. Out of 13 possible days in Bayreuth, there were 11 competition days, thanks to the continuous influence of a high-pressure system over the north of Germany. This system brought in a strong and …
From the 27th of May to the 4th of June, 31 pilots gathered to compete in the Open Class at the annual UK Nationals in Lasham. Despite a tough week with primarily blue and windy conditions, Andy Davis once again emerged as the champion flying his JS-MD 1C “80”. In second place was Ian MacArthur flying an 18-meter JS1B “DZ”, …
We are honored to officially announce the winners of the Jonker Sailplanes Challenge 2022. The board has nominated the following juniors who will be competing, in less than 2 weeks’ time, at the South African Club Class Nationals in Potchefstroom (South Africa): Zach Yamauchi, United States of America | California Niklas Hahn, Germany | Lower …
“My first flight in a JS1B was enough to convince me to buy a Jonker sailplane. My first flight in the 21m convinced me that this was the glider I wanted for long-distance flying. My first flight in the JS3 however surprised me after several hundred hours in the JS1 – It’s a completely different bird. So far, I’ve only been ab …
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