21 inch DFDL Wooden Propeller

Available sizes are 21×8, 21×10, 21×12, 21×14 propellers. If you are looking for other sizes, materials, or models, please take a look at Kratos Defense Drone Shop’s list of propellers. For a comprehensive reading of related products, please visit the Kratos Defense Drone Shop website. FAQ – 21-Inch DFDL Wooden Propeller (Precision-Balanced UAV Propeller) 1. What are the technical specifications of the 21-inch DFDL propeller? The 21-inch DFDL wooden propeller is designed for small to mid-size UAVs, featuring a 21-inch diameter optimized for efficient thrust and smooth torque delivery. It supports both electric and gasoline engines within moderate RPM ranges. 2. What materials and construction methods are used? The propeller is made from high-quality laminated hardwood, CNC-machined for precise symmetry and balance. A protective finish enhances resistance to moisture, UV exposure, and temperature fluctuations. 3. What UAV applications is it suitable for? It is ideal for fixed-wing drones, training aircraft, and light hybrid UAVs where smooth flight characteristics, low vibration, and natural damping are required. 4. How can customers place orders and make payments? Orders can be placed via Kratos Defense Drone Shop’s online store or by contacting the sales team. Payment methods include PayPal, credit/debit cards, and bank transfers. Special terms and discounts are available for bulk purchases. 5. Does Kratos Defense Drone Shop offer OEM or customization services? Yes. OEM customization includes adjusting the hub design, diameter, and pitch to match specific engines or UAV configurations. Branding and finishing options are also available for manufacturers. 6. What documentation and support are provided? Each propeller includes installation and maintenance instructions. Upon request, customers can receive balance reports, CAD files, and test data. Kratos Defense Drone Shop offers warranty service, spare parts, and technical support for all DFDL wooden propellers.