47 x 40 x 4.8 mm Nylon 2Vane Rotating RC Boat Propeller Black A compact, reliable replacement propeller designed for small electric and radio controlled boats. The twovane profile and nylon construction deliver predictable thrust and long service life while keeping weight low. Key benefits Improved responsiveness: Twovane design provides efficient thrust and quick acceleration for lightweight hulls. Durable construction: Molded nylon resists impact and flex, making it suitable for regular use and minor strikes. Precise fit: Specified dimensions make it easy to match with models and adapters that accept a 4.8 mm interface. Easy replacement and upgrade: Direct swap for worn or damaged props to restore performance without complex modifications. Low maintenance: Corrosion resistant and easy to clean after pond or lake runs. Important attributes Function: Twovane rotating propeller for RC boat propulsion. Size: 47 x 40 x 4.8 mm. Material: Nylon for a balance of strength and light weight. Color: Black. Compatibility: Intended for use with small RC boat drive systems that accept a 4.8 mm hub or adapter. Verify shaft or adapter dimensions before installation. Practical use scenarios Field replacement: Keep a spare on hand to quickly a damaged propeller after debris strike during a pond run. Performance tuning: Swap props when testing hull and motor setups to evaluate handling, acceleration, and speed changes. Model building and repairs: Use when assembling or refurbishing micro electric boats, small harbor craft models, and experimental watercraft. Installation notes Confirm that your shaft or adapter matches the 4.8 mm dimension for a secure fit. Inspect and balance the propeller before speed runs to reduce vibration and wear. Tighten mounting hardware according to your model motor or drive manufacturer recommendations. This propeller offers a practical, nofrills option for hobbyists and modelers who need a dependable 47 x 40 x 4.8 mm nylon 2vane replacement in black.