Customizable Fan Duct System - for Quadcopters.

thingiverse

This is a customizable module I've been working on, designed to let you create your own propeller duct system. The research behind it suggests that it will give you a significant boost in duration and/or power from your system, as long as you keep it light and stick close to the referenced figures. The module is meant for use in my ducted quad-copter design, but I like to share my work so others might find it useful. If you need more details that aren't clear in the Customizer app, take a look at the .SCAD file itself - I've included a key to all the variables near the top. References: Hover and Wind-Tunnel Testing of Shrouded Rotor Blades for Improved Micro Air Vehicle Design ~ Jason L. Pereira, Ph.D., 2008. https://capolight.wordpress.com/2015/01/14/quadcopter-rotor-duct/ ~ Richard (?). Thanks to both of them for their contributions to this area of research.