HIGH PERFORMANCE PROPELLER The APC 9 x 3.8 Slo-Flyer Propeller (model APC09038SF) is engineered to produce exceptional torque even at lower speeds, making it a perfect choice for Slo-Flyer applications. ADVANCED DESIGN This propeller features a computer-optimized design that not only provides a thinner profile but also enhances efficiency by reducing noise. DURABLE AND LIGHTWEIGHT Crafted from lightweight molded nylon, this propeller minimizes rotating mass, delivering both higher output performance and extended longevity. REINFORCED FOR RELIABILITY Incorporated carbon fibers ensure that the prop maintains a true and constant pitch across all RPM levels, guaranteeing stability during flight. INCLUDES ESSENTIAL ACCESSORIES The package comes complete with one carbon-reinforced nylon propeller, a set of small shaft locating rings, and a locating ring instruction sheet. BALANCING AND REQUISITES All props require balancing for optimal performance (recommended use of TOPQ5700). Depending on your setup, a prop reamer may be needed (GPMQ5006 for SAE or GPMQ5007 for metric). The Slo-Flyer propeller is not suitable for Glow engines. Experience the thrill of flight with a propeller designed for low-speed maneuverability, perfect for park-flyers and electric aircraft enthusiasts.