Website: thingiverse
Author: kwalus
Price: Free Download
File format: .Stl 3d printable
Description:
This balloon helicopter is a neat toy, tool for teaching basic flight physics, and very nice case study in design and experimentation that could be useful in the undergraduate or high school teaching lab. Notes on flying:Current best configuration: 16mm blades (blade_16.stl), 13 degree rotor (rotor_13.stl). Short flying