科学奥林匹克飞行器项目：Apache24c2翼架计划与全尺寸设计

Science Olympiad FLIGHT Apache24c2: Wing Jig & Full-Size Plan

2024-04-17 03:29:43

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Summary

Here is a jig for constructing the wing of Apache24c2, a 2024 Science Olympiad Flight event design. In addition to the wing jig's stl files, Apache24c2 full-size plan as well as laser-cut files are also uploaded at the "Files" section here. Please check out comments at the youtube video, Apache24c2 - Another Unorthodox Science Olympiad 2024 Div. C Design, https://youtu.be/5QHRFWFHO0I, before taking up the project.

In addition to no-dihedral and no-wingtipplate on all Apache24*, Apache24c2 adapted a significant wash-out angle, not wash-in, at wingtips. This idea came from Prandtl's 1933 paper (and as illustrated by NASA experimental flying wings since 2016), where it essentially says a bell-shape spanload (lift distribution) has less induced drag than the famous elliptical spanload that is deployed on many airplanes. To build Apache24c2 with better accuracy, a 3d printed wing jig is present here.

Apache24c2 is an advanced design with many details. There is no construction guide for it. For beginners, please check out Apache24s design at https://youtu.be/duHd2XiFhw8 and https://www.thingiverse.com/thing:6313844. Fifteen Apache24s flew successfully at a 2023 summer workshop. A derived Apache24s5 placed third at Southern California State at Caltech on 4/6/2024.

Kudos to all students who worked hard for the 2024 SO Flight event. Best wishes to all teams that are heading to Nationals at Michigan. Good luck!

Please feel free to contact me at aero.martin @ yahoo .com if there is any question I can help with. Cheers! :-)

-AeroMartin