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APC Pattern Prop 14.0x12.0 (Nitro/Gas)

Old Price: $4.99

Special Price: $2.50

Part Number: LP-SPP-140120

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Quality Propellers that are Competition Proven.

APC Composite Pattern propellers are for use with Glow or Gas powered airplanes. The trend in glow pattern has been to use relatively low diameter props with a lot of pitch. The smaller diameter keeps the prop tip speed low to minimize prop noise and the high pitch loads the engine to keep the rpm down. Pattern is another name for precision aerobatics, contestants fly a prescribed set of maneuvers or the "pattern" while judges grade the maneuvers. Sort of like figure skating. There is a noise limit and judges can downgrade for excessive noise With soft mounting, special mufflers, and props designed for low noise, these glow planes put some electric planes to shame in the quiet department.

APC props are manufactured using a pultrusion process. This method causes the fiberglass "fibers" to be oriented axially in 1/2 inch long pellets. This long fiber compound allows a higher fiber (60%) to resin (nylon binder) density than short or chopped fiber compounds. Viscous (skinning) effects during injection molding cause these long fibers to remain dominantly oriented in the propeller span-wise axis. This provides substantially higher strength and stiffness compared to more conventional processes which use short or chopped fibers. The long fiber composite material is both stiffer and stronger than glass filled nylon. The additional stiffness is beneficial to the control of vibration resonance response. The natural frequencies of the propeller must be kept high enough to preclude excitation from engine torsional vibration and aero-elastic flutter. The higher strength allows the use of (relatively) thinner cross-sections, beneficial to weight and aerodynamic efficiency in Pattern propellers.


  • 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 carbon fibers help maintain true, constant pitch at any rpm

Included with the package:

  • APC Pattern Prop 14.0x12.0 (Nitro/Gas) x 1


  • Diameter: 14"
  • Pitch: 12"
  • Hub Diameter: 1.13 in.
  • Hub Thickness: 0.67 in.
  • Shaft Diameter: 5/16 in.
  • Weight: 2.72 oz.
  • Color: GREY