This is the APC 9x3.7 Slow Flyer "SF3D" Propeller, a top-notch propeller designed for slow-flying applications. Crafted with precision using the pultrusion process, APC propellers exhibit an impressive fiber (60%) to resin (nylon binder) density, surpassing the strength and stiffness of glass-filled nylon propellers.
The additional stiffness of these propellers plays a crucial role in controlling vibration resonance response, ensuring a smooth and balanced flight experience. Moreover, the higher strength allows for the use of thinner cross-sections, resulting in reduced weight and improved aerodynamic efficiency.
Key Features:
• Incorporates a computer-optimized design, resulting in a thinner profile and enhanced traction while minimizing noise levels
• Constructed with lightweight molded nylon material, reducing rotating mass for increased output and extended propeller lifespan
• Features reinforcing fibers that maintain a consistent pitch at any RPM, ensuring reliable and precise performance
Specifications:
• Propeller Diameter: 9 inches (228.6mm)
• Pitch: 3.7 inches (93.98mm)
• Hub Diameter: 0.5 inches (12.7mm)
• Hub Thickness: 0.16 inches (4.064mm)
• Shaft Diameter: 0.22 inches (5.5mm)
• Weight: 0.18 ounces (5.1g)
• Rotation: Counter-clockwise (CCW) - Standard/Tractor configuration
