NACA duct for foamboard RC plane
thingiverse
Made a little NACA duct insert for a foamboard RC plane, perfect for my scratch-built FT Goblin (https://www.flitetest.com/articles/ft-goblin-release). To install, I simply cut a 31 x 46 mm hole in the desired location and then glued the duct insert from inside the plane. When printing on foamboard, I just pressed down on it and cut around the mark it left behind. Print orientation was not an issue as support was unnecessary when printed upright.
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