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Alfonso Parra Rubio authoredAlfonso Parra Rubio authored
README.md 1.40 KiB
Fixed Wings for Fab Labs
Fixed wings requires reflex airfoils at least in the root to be stable on flight. Taper angle is highly recommended as they provide:
- Largest area to play with the components and control the center of mass.
- Nice stability (yaw)
- Larger moment in the tip of the flap
We can manufacture the wing as unrolling its (almost) single curvature surface. This makes it a great candidate to be manufactured in a 2.5 axis machine (likely with a knife as we will need to crease our flat preform. The optimal crease is a V cut operation as the Zund provides).
Design
Free tools are available to let us estimate range and endurance, design it while analyze it(XFLR5) and design it (MACHUP).
As an example, I am starting to design a fixed wing for Bhutan. I used XFLR5 and Rhino.
Zund Iterations
Its too heavy, we ordered instead 3mm cardboard that will be the material used for the 2nd iteration.