performance 50 mm 4blade propeller designed as a direct spare part for remote control boat models. Precision machined and built for reliable replacement or upgrade, this propeller restores thrust and handling for simulation and hobby boats. Key benefits Precise fit: 50 mm diameter, 8 mm pitch, M4 righthand thread for straightforward installation on compatible RC boat shafts. Stable performance: Fourblade design delivers smoother thrust and improved lowspeed control compared with twoblade alternatives, making it easier to steer and maintain course. Durable material: Copper construction offers good wear resistance and longevity in model boating applications. Easy replacement: Standard M4 mounting allows quick swap of worn or damaged propellers without special tools. Features and specifications Diameter: 50 mm Pitch: 8 mm Blade count: 4 blades Thread: M4 righthand Material: Copper Function: Propulsion for remote control nautical and simulation boat models How this propeller solves common problems stripped or damaged props quickly to get your model back on the water. Reduce vibration and improve thrust balance for more predictable handling. Use as a spare part to minimize downtime during events, practice sessions, or leisure runs. Typical use scenarios and maintenance: Swap in this propeller after a crash or after prolonged use to restore original propulsion and handling characteristics. Performance tuning: Install as an upgrade to improve lowspeed maneuverability for scale simulation or slowpace demonstrations. Spare for events: Carry as a replacement during races or meetups to reduce downtime caused by damaged propellers. Compatibility notes Designed for RC nautical and simulation boat models that accept 50 mm, 8 mm pitch, M4 righthand propellers. Verify shaft thread and rotation direction before . Contents One 50 mm, 4blade copper propeller with M4 righthand thread. This propeller provides a reliable, easytoinstall replacement to keep RC model boats performing consistently on the water.