The props of Biela-Sport type are new developed with laminar airfoil of the prop blades, similar to the EX-Racing series, but with blade shape more similar to the D type props. The efficiency is around 10 % better compared to the standard version, also there is a better motor cooling at lower speeds (e. g. torque rolls)
The Biela propellers are already balanced and homologated for up to 8,000 rpm (from 36 '' to 6,000 rpm). It is a light but very strong and rigid propeller with a low noise level. The propellers are made of carbon fiber and reinforced in the central area with hard wood, then they are lacquered.
The propeller shown in the picture has standard paint, the rear of the propeller is always black and the front is white with red tips.
No. Blades: 2
Diameter: 18 "
Pitch: 8 "
HUB thickness: 26.1mm
Shaft diameter: 8mm
Weight: 110g (Approx)
RPM / Max: 8000
Motorization: Combustion and Electric
Recommended motor: 20 to 25 cm³
Turn: Normal Left
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