Fiala Prop Wooden 22×10 2-blade natural propeller

Fiala Prop Wooden 22×10 2-blade natural propeller

The Fiala Prop Wooden 22×10 2-blade natural propeller is a competition-grade wooden propeller meticulously engineered by Fiala Propellers in the Czech Republic for large-scale, gasoline-powered RC model aircraft. Widely regarded as a benchmark for high-efficiency wood airfoils, Fiala propellers offer premium structural quality at an accessible price point. This substantial 22-inch blade is specifically designed to handle the heavy torque curves, firing pulses, and power profiles of 50cc to 60cc single or twin-cylinder two-stroke petrol engines, adding an elegant, classic scale aesthetic to giant-scale aerobatic planes, warbirds, and vintage models.

Precision Airfoil Carving and Factory Balancing

Running large-displacement gasoline model engines can subject an airframe to intense vibrational stress if the propeller is even slightly out of balance. To eliminate this issue, Fiala props are carved using state-of-the-art multi-axis CNC machinery from premium, hand-selected German Beechwood. This precise manufacturing guarantees flawless dimensional symmetry across both blades. Every single propeller undergoes rigorous static and dynamic factory balancing before being finished. This careful quality control shields your engine’s front crankshaft bearings from premature wear, smooths out mid-range throttle transitions, and reduces harmonic resonance across the aircraft’s structural joints.

Key Features

• Premium European hardwood construction delivers an exceptional strength-to-weight ratio.

• Optimized 22-inch diameter with a 10-inch pitch profile tailored for 50cc–60cc gasoline engines.

• Factory pre-balanced to eliminate harmful high-amplitude engine vibrations.

• 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 design maximizes static thrust and top-end airspeed performance.

• Classically styled natural wood grain finish complements scale and aerobatic RC aircraft.

Aerodynamic Efficiency and Protective Finishing

Giant-scale RC flight demands a rigid propeller that maintains its true pitch shape under heavy G-loads and aggressive snapping maneuvers. Unlike composite plastic or nylon blades that can flex and lose aerodynamic efficiency under load, the dense wooden structure of the Fiala 22×10 prop remains completely rigid. This structural stability provides predictable vertical climbing power and excellent aerodynamic braking performance during steep descents. To safeguard the wood from environmental damage, each prop is sealed in a specialized, fuel-resistant clear lacquer. This transparent varnish highlights the natural wood grain while shielding the core fibers from raw gasoline, exhaust residue, and field humidity.

Technical Integration and Safety

Investing in authentic Fiala hardware ensures exceptional mechanical safety buffers for your giant-scale aircraft. The prop features a standard 10mm center shaft pilot hole, which can be custom-drilled using a precision propeller guide to match standard multi-bolt gas engine hubs like DLE-55, DLE-60, DA-50, or OS Engines. 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 3D hovers and landing flares.