The JS2 Revenant, a high-performance, versatile, easy-to-fly self launcher! The name Revenant was inspired from the French verb Revenir, meaning “to return”. The JS1-C is now making a return with an amazing powerful self-launching system! Only 4 hours to go before our LIVE virtual “walk around” 15h30 UTC! See you there!! …

The maiden flight of any new product is such an amazing and exciting occasion. Imagine the rewarding feeling if everybody involved can be in the cockpit for that first take off… that ultimate moment for the design team. It was a bold step, but JS evaluated the risks and decided that the time was right to share these emotions real time with th …

The JS design team was thrilled when Idaflieg approached them to test the JS3’s performance during their 2020 Summer camp.    Oftentimes, a manufacturer would be nervous at the idea that their glider’s published performance data may come up for scrutinizing and may even refuse to approve such a request at all, yet we see the importance of …

The advantages CAD modeling brings to the table is a much faster integration time for parts. The time it took from the pylon was carried to the fuselage, bolted into position and the pylon actuator tested for the first time did not take more than 15 minutes …

Our chief design engineer did not want to give any performance away with the JS2 fuselage. In fact, he designed the fuselage with even less drag than the JS1C fuselage. Obviously, this raised some concerns to our marketing team if we would be able to fit our better built customers. As soon as the seat pan, seat back and instrument console were inst …

Although South Africa (SA) is currently ranked amongst the top in the world regarding Covid-19 active cases, we are very grateful to report that the effects of the virus have not affected employees of Jonker Sailplanes.  JS has taken all the necessary steps to ensure reduced risk of infection under employees, and not one Covid case has&nb …

Opening the molds for the first time it is like opening a treasure box. You expect something amazing – the result of years of design and many weeks of construction, revealing its BEAUTY. It is an amazing feeling for everyone involved seeing the real product matching the expectation the CAD models promised. …

This week we saw a giant leap towards the completion of the REVENANT. After many weeks of accurately positioning components in the fuselage, verifying computer models and making small design changes, the JS2 fuselage was ready to be closed.JS spend a huge amount of engineering time to construct highly accurate tooling – this to ensure that se …

LSG Waterkant-Zetel e.V. received their JS3, serial number 83, on the 18th of June. They send to us some very uplifting words which we would like to share: “Thank you very much, Jonker Sailplanes and M&D Flugzeugbau for our new Aircraft. This weekend (26th to 28th of June), the first members of our club had the chance to experience their fi …

The latest issue of the gliding magazine SEGELFLIEGEN has just been dispatched to shops in Germany and Austria. This issue covers the 2020 Helli Lasch Challenge in the 5-star game lodge TSWALU, South Africa where some of the world’s top glider pilots enjoyed a week of luxury gliding. The front page picture of a jet equipped JS3-18m over Hamburg …

For those who missed the link in our latest newsletter, here is a copy of the article… Weight and balance is such a critical flight safety component – so often neglected by many of us aviators. Just imagine that the complete weight of an aircraft in flight is carefully balanced somewhere around the main wings, with a small tailplane a few meter …

JS is expanding its product range and plans to release a product in the standard class – the JS4. It is important to have the “voice of the customer” early in the design phase, to ensure we specify a product meeting our customer’s needs. We need to understand who has interest in our new products, what configurations are important and what powe …