How Jonker started to Build Gliders in South Africa
15:38
YouTubeStefan Langer
How Jonker started to Build Gliders in South Africa
Together with the opening ceremony of the South African Nationals, Jonker Sailplanes was celebrating their 300. glider manufactured in South Africa. Uys Jonker spoke about the beginning of their aviation journey and how they started Jonker Sailplanes. Follow @SoaringSocietyofSouthAfrica for more insights of flying in South Africa. My Equipment ...
18.3K viewsOct 24, 2023
Jonker Sailplanes Models
Jonker Sailplanes 2026 “An Exciting Year Ahead” - Through the eyes of CEO Uys Jonker. Follow the link and read all about it! https://jonker-sailplanes.com/jonker-sailplanes-2026-an-exciting-year-ahead-through-the-eyes-of-ceo-uys-jonker/ | Jonker Sailplanes
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Jonker Sailplanes 2026 “An Exciting Year Ahead” - Through the eyes of CEO Uys Jonker. Follow the link and read all about it! https://jonker-sailplanes.com/jonker-sailplanes-2026-an-exciting-year-ahead-through-the-eyes-of-ceo-uys-jonker/ | Jonker Sailplanes
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829 views3 months ago
Uys Jonker (CEO Jonker Sailplanes) explaining some nice features and the operation of the JET sustainer on the JS3. | Jonker Sailplanes
7:56
Uys Jonker (CEO Jonker Sailplanes) explaining some nice features and the operation of the JET sustainer on the JS3. | Jonker Sailplanes
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8.8K viewsJul 27, 2019
Jonker Sailplanes Design Engineer AP Kotze introduces the JET sustainer. #js3 #jonkersailplanes #js3jet #aerofriedrichshafen2019 | Jonker Sailplanes
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Jonker Sailplanes Design Engineer AP Kotze introduces the JET sustainer. #js3 #jonkersailplanes #js3jet #aerofriedrichshafen2019 | Jonker Sailplanes
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5.7K viewsApr 11, 2019
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An incredible milestone was achieved! The JS5 Rey takes to the sky for the very first time! Congratulations to the Design Team at On-Track Technologies for all your effort in making this Dream a reality. #jonkersailplanes #MaidenFlight #gliding | Jonker Sailplanes
7:37
An incredible milestone was achieved! The JS5 Rey takes to the sky for the very first time! Congratulations to the Design Team at On-Track Technologies for all your effort in making this Dream a reality. #jonkersailplanes #MaidenFlight #gliding | Jonker Sailplanes
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22.8K viewsNov 9, 2023
Uys Jonker engaging with one of our customers at AERO, discussing our JS products and sharing exciting news about our new factory in Potchefstroom, South Africa. | Jonker Sailplanes
5:19
Uys Jonker engaging with one of our customers at AERO, discussing our JS products and sharing exciting news about our new factory in Potchefstroom, South Africa. | Jonker Sailplanes
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3.2K viewsApr 11, 2025
Every JS glider goes through a vigorous inspection program during the manufacturing process. The final inspection step is the test flight, undertaken by JS's flight test team. JS3 serial number 95... test flown by Uys, towed by Rowan ... built by a passionate team... 👍🏼 | Jonker Sailplanes
2:38
Every JS glider goes through a vigorous inspection program during the manufacturing process. The final inspection step is the test flight, undertaken by JS's flight test team. JS3 serial number 95... test flown by Uys, towed by Rowan ... built by a passionate team... 👍🏼 | Jonker Sailplanes
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4.6K viewsSep 22, 2020
Jonker Sailplanes History
Exciting News from Jonker Sailplanes! 🚀 In late 2023, our cutting-edge flagship, the JS5 Rey, took to the skies for its maiden flight, marking a milestone in JS's legacy of innovation. 🛩️ We're thrilled to share that numerous customers and potential clients had the privilege of experiencing the remarkable capabilities of the JS5 first hand, providing invaluable feedback to our design team. 🌟 Among them was our esteemed customer, Lumpy Patterson, who embarked on a 14-hour journey across multip
5:32
Exciting News from Jonker Sailplanes! 🚀 In late 2023, our cutting-edge flagship, the JS5 Rey, took to the skies for its maiden flight, marking a milestone in JS's legacy of innovation. 🛩️ We're thrilled to share that numerous customers and potential clients had the privilege of experiencing the remarkable capabilities of the JS5 first hand, providing invaluable feedback to our design team. 🌟 Among them was our esteemed customer, Lumpy Patterson, who embarked on a 14-hour journey across multip
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7.1K viewsMar 29, 2024
This never gets old, sweet sound & smell - great job Jonker Sailplanes, the JS1C is a beautiful glider 😍 | Adam Woolley's Gliding Adventures
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This never gets old, sweet sound & smell - great job Jonker Sailplanes, the JS1C is a beautiful glider 😍 | Adam Woolley's Gliding Adventures
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45.9K viewsJun 13, 2023
Jonker Sailplanes on Reels
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Jonker Sailplanes on Reels
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10.3K views5 months ago
An incredible milestone was achieved! The JS5 Rey takes to the sky for the very first time! Congratulations to the Design Team at On-Track Technologies for all your effort in making this Dream a reality. #jonkersailplanes #MaidenFlight #gliding | Jonker Sailplanes
7:37
An incredible milestone was achieved! The JS5 Rey takes to the sky for the very first time! Congratulations to the Design Team at On-Track Technologies for all your effort in making this Dream a reality. #jonkersailplanes #MaidenFlight #gliding | Jonker Sailplanes
22.8K viewsNov 9, 2023
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Uys Jonker engaging with one of our customers at AERO, discussing our JS products and sharing exciting news about our new factory in Potchefstroom, South Africa. | Jonker Sailplanes
5:19
Uys Jonker engaging with one of our customers at AERO, discussing our JS products and sharing exciting news about our new factory in Potchefstroom, South Africa. | Jonker Sailplanes
3.2K viewsApr 11, 2025
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Every JS glider goes through a vigorous inspection program during the manufacturing process. The final inspection step is the test flight, undertaken by JS's flight test team. JS3 serial number 95... test flown by Uys, towed by Rowan ... built by a passionate team... 👍🏼 | Jonker Sailplanes
2:38
Every JS glider goes through a vigorous inspection program during the manufacturing process. The final inspection step is the test flight, undertaken by JS's flight test team. JS3 serial number 95... test flown by Uys, towed by Rowan ... built by a passionate team... 👍🏼 | Jonker Sailplanes
4.6K viewsSep 22, 2020
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How a glider is designed and produced at Jonker Sailplanes
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How a glider is designed and produced at Jonker Sailplanes
9.6K viewsDec 18, 2019
YouTubeJonker Sailplanes
Jonker Sailplanes Factory Tour 2022
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Jonker Sailplanes Factory Tour 2022
9.6K viewsDec 19, 2022
YouTubeJonker Sailplanes
Uys Jonker (CEO Jonker Sailplanes) explaining some nice features and the operation of the JET sustainer on the JS3. | Jonker Sailplanes
7:56
Uys Jonker (CEO Jonker Sailplanes) explaining some nice features and the operation of the JET sustainer on the JS3. | Jonker Sailplanes
8.8K viewsJul 27, 2019
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AND HERE WE GO AGAIN......! Another brand new JS3 Rapture is test flown for the first time in South Africa before it takes its last journey to its new owner overseas. As the gliding season is approaching on the northern hemisphere we would like to share some fun we sometimes have during our test flight programs ;-))) | Jonker Sailplanes
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AND HERE WE GO AGAIN......! Another brand new JS3 Rapture is test flown for the first time in South Africa before it takes its last journey to its new owner overseas. As the gliding season is approaching on the northern hemisphere we would like to share some fun we sometimes have during our test flight programs ;-))) | Jonker Sailplanes
5.1K viewsMar 4, 2021
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0:19
John Gonzalez, owner of JS3 RES serial number 03-121, asks Uys Jonker about the "South African Boomerang" supplied in his glider's toolbag and gives it a test throw. Enjoy! | Jonker Sailplanes
1.8K viewsAug 27, 2022
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3:16
🏁 South African Nationals & JS WeGlide Challenge 🇿🇦 The South African Nationals are a wrap — and what a week it`s been, with incredible speeds achieved! ☀️💨 Our JS WeGlide Challenge winners, Tuulianna Laukkanen and Mika Rösner, shared stories of fast South African days… and a few “farming stops” along the way too. That’s soaring in true South African style — fast, fun, and full of stories to tell! Congrats to everyone who took part and lent a helping hands to make this event a success. https
1.9K views6 months ago
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0:08
JS2 Revenant - STEP by STEP - Even though the CAD models predicted smooth operation the engineering team could not hide their excitement and satisfaction when the pylon system effortlessly extracted and retracted for the first time. It is amazing how the engineering team integrated such a big powerful engine system in such an elegant small fuselage. #jonkersailplanes #js2revenant | Jonker Sailplanes
588.2K viewsAug 29, 2020
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2:20
🌍✨ Klaus Ohlmann, legendary world record-holding glider pilot, visits JS in Potchefstroom for the first time! 🚀 Besides his multiple world records Klaus Ohlmann holds the world record for the longest distance ever flown in a glider, covering an incredible 3,008.8 km (1,869 miles) in a single flight. He achieved this feat on January 21, 2003, in Argentina, flying in the wave conditions of the Andes. Last Sunday Klaus took his first flight in a JS glider, flying the JS3 Rapture JET in the 15m wi
5.4K viewsFeb 3, 2025
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3:54
✈️ JS WeGlide Challenge Winners Soaring in South Africa! 🇿🇦 A big shout-out to our JS WeGlide Challenge winners, Mika Rösner from Germany (SFZ Aachen) and Tuulianna Laukkanen, just 18 years old from the Omarama Gliding Club in New Zealand! 💪 Both are currently competing at the South African Club Class Nationals in Potchefstroom — Mika in an LS4 and Tuulianna in an LS3. It’s Mika’s first time flying outside Europe, and both already had some exciting outlandings! 😄 Every year, JS invites two j
2.6K views6 months ago
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1:29
Have a look at some in-flight impressions from the JS2 Revenant and JS3 Rapture at the SA Nationals. | Jonker Sailplanes
3.9K viewsDec 18, 2021
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0:11
JS continuously tries to improve their products. This time we made modifications on the JS3 side pockets. For small pilots with the backrest in a forward position the standard side pockets were a bit out of reach. With the sliding side pocket option everything is always in reach. | Jonker Sailplanes
4.9K viewsJun 15, 2022
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1:02
JS’s aerodynamic team uses CFD extensively in their aero research. Constant CFD verification is done. In this case oil flow test are used to verify CFD results around complex flow areas. Here the high-wing / fuselage junction of the JS3 Rapture was tested. | Jonker Sailplanes
4.2K viewsApr 1, 2020
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1:44
CS 22.153 Approach and landing It must be demonstrated that normal approaches and landings can be performed in crosswinds not less than 15km/h or 0.2 Vso. As the maximum allowable Vso is 90km/h we selected 18km/h as the minimum crosswind component to be demonstrated. The worst case CG position for a tail wheel configuration glider is the maximum forward position. It must also be demonstrated that there is no undue tendency to ground loop, pitching oscillation or nose over. To meet the last requi
5.5K viewsAug 10, 2017
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3:09
JS3 RAPTURE: The most modern 15m / 18m EASA certified glider on the market......YOUR DREAM, OUR MISSION! | Jonker Sailplanes
9.4K viewsJul 18, 2019
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4:50
Flying a competition in Rieti is arguably one of the best events for any glider pilot. The 18 m class is filled with many top International pilots with 10 JS gliders. Uys and Arne sharing their experiences after day 2. | Jonker Sailplanes
4.4K viewsAug 5, 2021
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2:03
Impression of a 1,97m tall pilot flying a JS2 Revenant for the first time. | Jonker Sailplanes
4.4K viewsApr 19, 2021
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1:23
Some impressions of our JS5 Rey and JS3 Rapture soaring over Namibia December 2024! ✨☀️ Soon, the European gliding season will be in full swing again! 🚀 JS will be at AERO Friedrichshafen in April 2025—come and see us there! ✈️ #Gliding #JS5Rey #JS3Rapture #Namibia #AERO2025 | Jonker Sailplanes
4K viewsFeb 27, 2025
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1:37
Jonker Sailplanes is proud to present the roll out of JS3 Rapture number 100 on the anniversary date of both the JS1 and JS3. OK we have to admit we delayed the roll-out with a few weeks to make the anniversary even more special. Today 14 years ago the JS1 had its maiden flight and 4 years ago the 15m version of the JS3 experience the African sky, before its 14.000 km record breaking flight to Australia (with the help of QANTAS of course). It's amazing how the weather always makes our maiden fli
8.6K viewsDec 11, 2020
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5:04
CS-22.73 Back to the high speed descend... we received quite some interest in this topic, and published the attached video of the 18m and 21m versions of the JS-MD 1C test program. Despite the sudden acceleration, the wings does not bend as much as we expected, due to their inertia, and the fact that the acceleration is only for a split second. For those who remembered the momentum change formula of dP=F.dt this will make a lot of sense.... | Jonker Sailplanes
24.2K viewsJul 12, 2017
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2:07
Another new JS3 Rapture, serial number 94, is ready to be handed over to its new customer. Test flown by Uys, towed by Rowan ... built by a passionate JS team... 👍🏼 | Jonker Sailplanes
4.8K viewsOct 3, 2020
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0:21
Jonker Sailplanes 2026 “An Exciting Year Ahead” - Through the eyes of CEO Uys Jonker. Follow the link and read all about it! https://jonker-sailplanes.com/jonker-sailplanes-2026-an-exciting-year-ahead-through-the-eyes-of-ceo-uys-jonker/ | Jonker Sailplanes
7.5K views3 months ago
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1:33
Certification flight tests of the JS-3 started with test instrument calibration and the test of emergency equipment. The deployment and successful jettison of the anti-spin chute has be to tested in controlled conditions. The concept of the anti-spin chute is to stop to the high yaw rate during an unrecoverable spin that may be encountered during the spin program. After deployment a descent rate of 10m/s was recorded - too high to attempt a safe landing. | Jonker Sailplanes
11.5K viewsJun 14, 2017
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Jonker Sailplanes Design Engineer AP Kotze introduces the JET sustainer. #js3 #jonkersailplanes #js3jet #aerofriedrichshafen2019 | Jonker Sailplanes
5.7K viewsApr 11, 2019
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0:57
Ever wondered how gliders find their way up into the skies? Take a look at how our Sling tugs this Jonker JS-3 sailplane. An epic moment where two forms of South African flight work together. Want to see more? Watch the full interview with James and our Chief Test Pilot, Riaan, on our YouTube channel: https://youtu.be/0g997WHo_ns Also, visit their website to learn more about this privately owned, South African company that designs, manufactures and maintains all Jonker sailplanes from their main
10.8K viewsAug 15, 2023
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First JS3 RES electric self launch in Veronica Namibia 🇳🇦 .This morning Bernd DOLBA was already celebrating the begin of carneval which starts in Köln 11.11. at 11:11 o‘clock. He finished his task exactly after 1111 km at 141 km/h. Have a look how powerful the engine runs at 1355 m MSL. The take off is much more powerful compared to the other 2 stroke engines here in Veronica. | Jonker Sailplanes
498K viewsNov 11, 2022
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5:32
Exciting News from Jonker Sailplanes! 🚀 In late 2023, our cutting-edge flagship, the JS5 Rey, took to the skies for its maiden flight, marking a milestone in JS's legacy of innovation. 🛩️ We're thrilled to share that numerous customers and potential clients had the privilege of experiencing the remarkable capabilities of the JS5 first hand, providing invaluable feedback to our design team. 🌟 Among them was our esteemed customer, Lumpy Patterson, who embarked on a 14-hour journey across multip
7.1K viewsMar 29, 2024
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