Wing Design

Wing Design Day 3: Preliminary Aileron Design

PRELIMINARY AILERON DESIGN

We couldn’t find much information online on how ailerons are typically hinged so Ollie reached out to the Homebuilt Airplanes forum and got some great responses. It seems that the most common hinging mechanisms for ultralights are a series of separate piano hinges or two U brackets bolted together. Bearings typically aren’t used on ultralights simply to save weight. Delrin® bushings are used instead. Since we are planning to use integrated ailerons rather than “cheepo” ailerons attached on the trailing edge (primarily for sex appeal but also to save weight), we need to use the U bracket configuration, as piano hinges simply wouldn’t work. Based on some conceptual calculations done by Ryan on the physics team, Ollie began drafting a variablized aileron design. To attach the ailerons to the wing, the aft spar was also moved further back.

*Editors note: the thought processes and design choices presented in this article don’t necessarily represent those implemented into the final design and are subject to change. Flight Club Aerospace is a group of amateur students with no formal education in any fields of engineering. We present this information for educational purposes only, with the understanding that it is not to be re-created without adequate professional oversight and mentorship. For our latest designs and updates, please see our most recent blog posts.

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