News

Progress on FEM Calculations for the fs36

Even though we still aren’t allowed to hang around our workshop, we’re still working intensively on our fs36 project. One section that had a lot of work put into it were the interface between strength verification and load calculation, along with the FEM model. These will be explained in more detail here. In the past…
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Progress on the Winter Maintenance – G109

Last season, our G109 finally hit 3000 flying hours and thus, it requires a service life extension program. To this end, we started a crowdfunding campaign for the overhaul of our G109, during which we earned more than 3500€. We would like to heartily thank all those who donated. The G109 is getting a new…
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Progress on the Winter Maintenance – fs25

The fs25 is our oldest still flying prototype and of course, we wouldn’t forget about or old girl. This year, the fs25 is going to get a new coat of paint! To this end, we spent hours sanding off the old layers of paint. Since we found one or two damaged areas, we also took…
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Progress on the Winter Maintenance – Twin III

This time around, we decided to mount detachable canards onto our Twin III. This would allow heavier pilots to spin the sailplane better, which in turn lets more pilots do spin practices on the Twin. Besides that we also did the usual winter maintenance work, and the plane got new brake pads and a new…
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Impacts of the Corona-Pandemic on our activities

Dear friends and supporters, the Akaflieg Stuttgart is affected by the measures to combat the Corona-Pandemic too. Therefore the University of Stuttgart decided to close the premises of the Akaflieg until further notice. We also postponed the beginning of our flying season 2020. This means that there is currently no one in the Akaflieg workshop…
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Operation of the fs36’s Flaps

Our newest project, the fs36, will be a fly-by-wire sailplane with Fowler flaps, an idea first attempted by the Akaflieg Stuttgart with the fs34 Albatross. Generally, sailplanes with a variable wing area are designed to achieve an advantage in thermalling by increasing their wing area, while during high speed flight, the flaps are raised, giving…
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Numerical Analysis of Wing-Fuselage Joints for the fs36

Just last summer, Caroline, as part of her Bachelor thesis, ran some tests on a reference configuration of a wing-fuselage joint for the fs36. Said configuration didn’t use any specially designed joint. A CAD model for the joint with the flaps raised and lowered respectively were created. Nets were generated and both Euler and RANS…
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fs36 FlyByWire

A new dimension of Performance and Safety! With this in mind, a new glider prototype is being built at Akaflieg Stuttgart. The most important feature can already be recognized in its name – FlyByWire: For the first time we want to do without the usual mechanical flight controls used in small aircraft construction. Instead, the…
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Flutter Tests on the fs33

This year, we continued with flight tests on the fs33 with the new winglets as part of the Idaflieg Summer Meet in Stendal. Since these new winglets alter both the aerodynamics and mass of the wings, flutter tests at speeds above the maximum permissible airspeed of 280 km/h (174 mph) must be done, specifically up…
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First Flight fs35 Harpyie

We finally did it! On the 13th of August 2019, our fs35 “Harpyie” finally took to the skies for the first time! Thus ends a long chapter in our little club. Ever since the idea for the project was born in 2003 and construction began in 2010, over 70 students have worked together alongside their…
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