The Quanum series of carbon fiber propellers have been specially designed for multi-rotors and are manufactured to very exacting standards. They are extremely light and strong and you can expect an increase in performance due to their ultra thin and stiff carbon construction.
These propellers have dual mountings which means they will fit most multi-rotors, you can either use the standard 4mm center hole (which can be reamered for larger shafts) or you can use a tightening cover with 12mm centers and M3 bolts.
Length: 11 inch
Pitch: 5.5 inch
Shaft Diameter: 4mm
Cover Plate Hole Centers: 12mm
Hub Thickness: 2.5mm
Weight: 9g each
Rotation: Clockwise and counterclockwise
Unit Weight (g):
It's a really good quality prop for multirotor.This Carbon fiber props are good.but it has to balance.Work great.The first prop I balanced was nearly exact, the next 3 took quite a bit of balancing, most of the work goes to balancing the center of the prop. I like the name tags, they make identification really easy, they are on the top though so got to watch out when sanding the props. With my Z700 quad, Quanum 2814 880kv motors & multistar 10.0Ah battery, I get 26 min flight time hovering at just over half throttle.Bought 4 pairs of these. Light weight, thin and stiff props. But had to balance them a lot! One of them I had to throw away due to too much unbalanced. Could not get it good. And the center hole was smaller on the CCW than the CW. Will I buy them again? Not as long as they are this hard to balance.