Our first rotor blade was supposed to be nothing more than a test for the process of building other rotor blades. However we were curious whether it could hold up to aerodynmaic forces so this blade could create thrust for our test rig.
Our test rig’s goal is to obtain values for aerodynmaic forces of our rotor and duct. For that we need a rotor with the correct geometry. Our first test rotor is very heavy and has a weak point at it’s root. Therefore we were suspicious whether it could hold up in our test rig.
However, we were proven wrong: It was able to carry four times the load which it endures in our test rig. Actually we didn’t have enough containers of water to simulate aerodynamic forces, so we filled up extra large containers which fit 12 kgs of water each.
For hovering, Ephemeron’s whole rotor will create 25 kgs of thrust. Our rotor blade for our test rig has proven capability for loads beyond 100kgs.