This is the APC 7x4.1 Slow Flyer "SF3D" Propeller, a high-performance propeller designed for smooth and precise flight. Manufactured using an advanced pultrusion process, APC propellers feature a higher fiber-to-resin density, with 60% fiber content and a nylon binder. This cutting-edge manufacturing technique provides substantially higher strength and stiffness compared to propellers made of glass-filled nylon. The additional stiffness effectively controls vibration resonance response, while the enhanced strength allows for the use of thinner cross-sections, resulting in improved weight reduction and optimal aerodynamic efficiency.
Key Features:
• Computer-optimized design ensures a thinner profile, delivering enhanced performance with reduced noise levels and improved
biting capability
• Lightweight molded nylon construction minimizes rotating mass, resulting in higher output and extended lifespan
• Reinforcing fibers help maintain a constant pitch at any RPM, ensuring reliable and consistent performance
Specifications:
• Propeller Diameter: 7 inches (177.8mm)
• Pitch: 4.1 inches (104.14mm)
• Hub Diameter: 0.5 inches (12.7mm)
• Hub Thickness: 0.16 inches (4.064mm)
• Shaft Diameter: 0.216 inches (5.5mm)
• Weight: 0.12 ounces (3.4g)
• Rotation: Counterclockwise (CCW) - Standard/Tractor configuration
