3D printed 7x4 propeller survives first test

I determined the blade stresses due to centripetal force and found that at the maximum speed of 12,500 RPM, it has a safety factor of 2.8. I mounted a 2200kV 350W motor and installed the propeller on it and spun it up with a 3 cell LIPO. A video of the test is attached above. At max speed, the power usage on the meter reads ~360W (~32A): estimated speed: 12,500RPM.

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