Fiala Prop Wooden 24x10P 2-blade natural propeller

Fiala Prop Wooden 24x10P 2-blade natural propeller

The Fiala Prop Wooden 24x10P 2-blade natural propeller is a highly specialized, competition-grade wooden airfoil manufactured in the Czech Republic by Fiala Propellers. Distinct from standard tractor layouts, the “P” designation identifies this as a Pusher (Reverse Rotation) propeller. It is engineered specifically for giant-scale gasoline RC aircraft utilizing a rear-engine configuration, large flying wings, or expansive scale twin-engine models requiring counter-rotating props to cancel out engine torque steering effects. Built to handle the massive torque curves, sharp firing pulses, and power profiles of 60cc to 85cc petrol engines, this 24-inch wood blade combines a classic natural wood aesthetic with high-grade European mechanical balancing.

The Crucial “P” (Pusher / Reverse Rotation) Engineering

When viewing an aircraft from the front facing the cockpit, a standard tractor propeller rotates counter-clockwise (CCW) to pull the aircraft forward. In contrast, the Fiala 24x10P Pusher propeller features an inverted airfoil pitch orientation designed to rotate clockwise (CW) to generate forward thrust. This reverse-pitch configuration allows pilots to mount standard gasoline engines backward—such as on pusher-prop flying wings, canard-style aircraft, or scale replica industrial UAV platforms—without needing to physically reverse the internal mechanical rotation of the engine’s crankshaft.

Precision Airfoil Carving and Factory Balancing

Rear-mounted pusher engines operate in inherently turbulent, “dirty” air trailing behind the fuselage or wings. To minimize structural drag and vibrations under these demanding conditions, Fiala propellers are carved on precise multi-axis CNC machinery from premium, hand-selected German Beechwood. This manufacturing guarantees absolute dimensional symmetry across both blades. Every single propeller undergoes rigorous static and dynamic factory balancing before being finished, protecting your rear engine’s front crankshaft bearings from premature wear and smoothing out complex mid-range throttle transitions.

Key Features

• Explicit “P” Type (Pusher / Clockwise CW Rotation) design optimized for rear-engine installations.

• Premium European hardwood construction delivers excellent structural rigidity under heavy G-loads.

• Optimized 24-inch diameter with a 10-inch pitch profile tailored for 60cc–85cc gasoline engines.

• Factory pre-balanced to prevent high-amplitude harmonic resonance through the airframe.

• Coated in a fuel-proof, high-gloss transparent varnish to resist oil and gas staining.

• Low rotational mass enables crisp throttle tracking and rapid RPM acceleration curves.

• Features a standard 10mm pilot shaft hole, easily reamed for custom multi-bolt hubs.

• High-efficiency 2-blade geometry maximizes static thrust and top-end airspeed performance.

Aerodynamic Efficiency and Protective Finishing

Giant-scale RC aircraft demand a rigid propeller that maintains its true pitch shape under heavy flight loads and aggressive snapping maneuvers. Unlike composite plastic or nylon blades that flex and lose efficiency under high load, the dense wooden structure of the Fiala 24x10P prop remains completely rigid. This gives pilots highly predictable vertical climbing power and excellent aerodynamic braking performance during steep descents. To shield the wood fibers from the elements, each prop is sealed in a specialized, fuel-resistant clear lacquer. This transparent varnish highlights the natural wood grain while shielding the core from raw gasoline, exhaust residue, and field humidity.

Technical Integration and Safety

Investing in authentic Fiala hardware ensures exceptional mechanical safety buffers for giant-scale aircraft. The prop features a standard $10\text{ mm}$ center shaft pilot hole, which can be custom-drilled using a precision propeller drill guide to match standard multi-bolt gas engine hubs like DLE-61, DLE-85, DA-60, DA-70, or GP-88. Due to its lightweight wooden composition, it possesses significantly lower rotational inertia than equivalent carbon fiber or plastic blades, allowing your engine’s carburetor to track throttle changes rapidly without bogging down, giving you total control during critical low-altitude maneuvers.