Master Airscrew MA1860C 18x6 Classic Series Two-Blade Propeller  [MA1860C]

18x6 Two-Blade Prop for Electric Fixed-Wing Models

This Master Airscrew MA1860C Classic Series 18x6 propeller is an RC-scale replacement part intended for fixed-wing model aircraft. The 18x6 designation describes diameter and pitch which guide its expected thrust and RPM band, making this propeller useful when changing performance balance between climb and top speed without altering motor or ESC setup.

The propeller is presented as a standard two-blade unit for general-purpose sport and scale airframes. When replacing a propeller, check hub fit and shaft clearance, ensure thread lockers or appropriate nuts are used if required by your spinner assembly, and confirm direction of rotation matches your motor setup.

For setup and tuning, treat the propeller as part of the propulsion system: pairing an 18x6 prop with different motors or battery voltages will change load and current draw. Use a wattmeter to confirm the motor stays within safe operating range, and consider prop balancing and static checks before flight to reduce vibration and wear on the airframe and powertrain.