(Credit: rctestflight) Interestingly, the 2-blade FDM-printed propeller ended up performing the best, while the bi-blade design (with two sets of blades positioned one after the other) performed ...

The structure, the wings, and the overall airframe design were tweaked several times to achieve a successful supersonic flight. However, propeller blades pose a significant challenge due to their ...

MIT recently announced its research on toroidal propellers to create quieter ... [Major] did a design and 3D printed the blades. Watching the comparison with a conventional fan using smoke was ...