We have recently added a new range of propellers (10 and 11 inch) size that are very similar to the graupner e-prop, tests show that they have the same performance, but for a fraction of the price! Read more for full details.
Comparison to GraupneR E-Prop
Tests where run on a 850Kv motor, with 40A ESC with a 3S battery, as you can see in the graphs below our 11x50 props are pretty much the same in terms of thrust and efficiency (grams per watt)
Our 10x50 and 11x50 props are manufactured to tight tolerances and most of the time they will not require any balancing.