APC 6x4.1SF Slow Flyer "SF3D" Propeller

APC 6x4.1SF Slow Flyer "SF3D" Propeller
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This is the APC 6x4.1SF Slow Flyer "SF3D" Propeller. APC propellers are manufactured using a pultrusion process which allows for a higher fiber (60%) to resin (nylon binder) density. This provides substantially higher strength and stiffness than glass-filled nylon. The additional stiffness is beneficial to control vibration resonance response. The higher strength allows the use of thinner cross-sections, beneficial to weight and aerodynamic efficiency.


  • Computer-optimized design gives these props a thinner profile and more "bite" with less noise
  • Lightweight molded nylon construction reduces rotating mass for higher output and longer life
  • Reinforcing fibers help maintain true, constant pitch at any RPM


  • Propeller Diameter: 6in (152.4mm)
  • Pitch: 4.1in (104.14mm)
  • Hub Diameter: 0.5in (12.7mm)
  • Hub Thickness: 0.1in (2.54mm)
  • Shaft Diameter: 0.216in (5.5mm)
  • Weight: 0.11oz (3.12g)
  • Rotation: CCW (Standard/Tractor)

This product was added to our catalog on September 27, 2022