Category: fs36

Article Series fs36 – Wing Test Piece: 5. It Moves!

And now we are at the end of the article series on the fs36 wing test piece. After the state shown in the last article, the fin, flap, and flaperon were trimmed and adjusted to each other, allowing for full movability. Furthermore, all three parts were painted and are now shining with a coat of…
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Article Series fs36 – Wing Test Piece: 4. Last Steps to Sealing the Fin

In this article, we will describe the final steps to completing the main part of the wing test piece, the fin. By now, a large part of the work has been done and the goal of a small wing with a moveable flap and actuator-driven flaperon seems to be within reach. While producing the small…
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Article Series fs36 – Wing Test Piece: 3. Construction of Small Parts to Complete Construction Groups

As hinted in the last article, the time consuming construction of small parts was just around the corner. From a production standpoint, the flap had to be completely built along with its bearing before we could continue with the test piece. The reason for this was the placing of the flap guide rails in the…
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Article Series fs36 – Wing Test Piece: 2. Wing Skin Construction and Detail Design

At the end of the last article, the largest parts of the mold had been completed, and now it was time to start building the structure. Even though it would have been best to start building after the detail design had been completely finished, the tight schedule did not allow it. The wing skins in…
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Articles Series fs36 – Wing Test Piece: 1. Reasoning and Mold Making

During the last year, we built a test piece of the fs36’s wing. We will tell you about the whole process in a series of articles. Design work on our newest prototype, the fs36 “FlyByWire” is progressing quite well and CAD (Computer-Aided Design) work is becoming more and more detailed. During the whole CAD work,…
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Flight Mechanical Model of the fs36

Apart from flight testing the fs35, we’re still hard at work on our newest project, the fs36. Fowler flaps, which are to be installed on the fs36, have only very rarely been incorporated in sailplanes, and therefore not a lot of experience has been gained on their use in the field. To deal with this…
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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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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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