Master Airscrew K Series Propellers are performance propellers for model aircraft. They have been factory balanced for easy installation.
The K series provides great performance and durability with low noise. They are designed for larger 2 and 4 stroke engines and electric conversion models.
Propeller Diameter: 13"
Propeller Pitch: 4"
Hub thickness: 5/8"
Shaft Diameter: 1/4" - 5/16"
Propeller Weight: 1.55oz
Rotation: CCW (Normal / Tractor)
Material: Glass Fiber R Composite
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great price, but I bought this prop for Giles 3d type using a OS 52 fourstroke to try instead of the apc 13x4 prop. I pursumed it would give me better thrust and vertical climb because of the wide blades ..... IT DID NOT! it spun fast enough but I found I lost about a 1/4 of the thrust and speed but gained alot of noise!
I have changed back to the APC bought from here...muy buenas y aguantan cantasosGreat for 4 stroke ASP 61RFSnesse preo no tem disculso s comprar.Barang yang bagus dengan harga yang relatif murah. rekomen untuk di coba.good product. I put this on a Flip 3D by Kyosho powered by a OS 55 AX. now it climb after a torque.so noisy!!!Only thing I don't like about these props is how thick the prop is at the mounting hole compared to the APCs. Other than that I love these thingsA good prop, just for ASP FS61AR Four Stroke Glow Engine, only the sharp edge, it is necessary to blunt.