{"id":8909,"date":"2020-05-08T14:55:56","date_gmt":"2020-05-08T12:55:56","guid":{"rendered":"https:\/\/jonker-sailplanes.com\/?p=8909"},"modified":"2025-07-25T15:00:48","modified_gmt":"2025-07-25T13:00:48","slug":"js5-open-class-single-seater-wing-design-from-our-aerodynamic-chief-engineer-johan-bosman","status":"publish","type":"post","link":"https:\/\/jonker-sailplanes.com\/de\/js5-open-class-single-seater-wing-design-from-our-aerodynamic-chief-engineer-johan-bosman\/","title":{"rendered":"JS5 (Open Class Single seater) wing design from our Aerodynamic Chief Engineer Johan Bosman."},"content":{"rendered":"

Die #JS5<\/a> wing has 2 sections per side with a removable winglet (as strongly recommended by Cobra trailer design team). The 4 flaps per side are driven by 4 drivers, as the aerodynamic twist associated with these long wings could just not be structurally designed out. Intensive wing and flap twist modulations were performed to ensure we deliver a slim wing not giving away any of its performance with undesirable twist. The transfer of the aileron functions to the outboard wing is all done with clever auto-connections, as required by the CS22 specification \u2013 so no more complex de-rigging challenges normally associated with open class ships.<\/p>\n\n\n\n

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The water system in the #JS5<\/a> wing comprises of a novel concentric actuator system that allows combined and individual control over the two water tank valves. The water tanks are divided up in smaller compartments with one way restrictor valves to prevent water sloshing when taking off with partial water loads. The design team spent some time to ensure they deliver a very maintainable system with all water system components removable from the wing in less than 15 minutes – we think the maintenance organisations will love us for this improvement.<\/p>","protected":false},"excerpt":{"rendered":"

The #JS5 wing has 2 sections per side with a removable winglet (as strongly recommended by Cobra trailer design team). The 4 flaps per side are driven by 4 drivers, as the aerodynamic twist associated with these long wings could just not be structurally designed out. Intensive wing and flap twist modulations were performed to ensure we deliver a slim wing not giving away any of its performance with undesirable twist. The transfer of the aileron functions to the outboard wing is all done with clever auto-connections, as required by the CS22 specification \u2013 so no more complex de-rigging challenges normally associated with open class ships. The water system in the #JS5 wing comprises of a novel concentric actuator system that allows combined and […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[319],"tags":[],"class_list":["post-8909","post","type-post","status-publish","format-standard","hentry","category-tech-talks"],"aioseo_notices":[],"aioseo_head":"\n\t\t\n\t\n\t\n\t\n\t\n\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t