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HQProp 5131 (R31) Poly Carbonate Propeller (2CW+2CCW) - Grey

₹259.00 (Inclusive of all taxes)
Out of Stock

The HQProp 5131 (R31) is a 5.1-inch tri-blade propeller crafted from durable polycarbonate, designed for high-performance FPV racing and freestyle drones operating on 4S-6S LiPo systems. This 2CW+2CCW pack provides a balanced 3.1-inch pitch for an optimal blend of thrust and efficiency.

Features

  • 5.1-inch diameter with a 3.1-inch pitch for aggressive thrust and speed.
  • Constructed from high-impact polycarbonate for durability and consistent flex.
  • Tri-blade (R31) design optimized for high-RPM performance and responsive handling.
  • Includes 2 clockwise (CW) and 2 counter-clockwise (CCW) propellers for a complete set.
  • Features a 5mm shaft bore and a 13.3mm hub for secure motor mounting.

Out of stock

Description

The HQProp 5131 (R31) propeller is engineered for pilots seeking a high-thrust, durable option for 5-inch FPV builds. The polycarbonate construction offers a precise balance of stiffness and resilience, reducing the risk of blade deformation during high-G maneuvers and minor impacts, which is critical for freestyle and aggressive racing.

With a 3.1-inch pitch, these props generate substantial static thrust while maintaining efficient high-speed flight characteristics. The tri-blade configuration and refined airfoil design work to minimize turbulence and vibration, contributing to smoother video feed and more predictable flight behavior, especially when paired with high-KV motors on 4S to 6S power systems.

Key Features

  • High-Performance Airfoil: The R31 profile is optimized for low drag and high thrust efficiency across a wide RPM range.
  • Impact-Resistant Polycarbonate: Provides superior durability compared to standard nylon composites, resisting cracks and fatigue.
  • Precision-Balanced Hubs: Each propeller features a machined 13.3mm hub to ensure minimal vibration out of the package.
  • Wide Voltage Compatibility: Engineered to perform reliably on 4S, 5S, and 6S LiPo battery configurations.
  • Aggressive Thrust Profile: The 5.1x3.1 size delivers powerful acceleration and top-end speed suitable for racing and dynamic freestyle.
  • Standard 5mm Bore: Compatible with the vast majority of 5-inch drone brushless motor shafts.

Applications

  • 5-inch FPV Racing Drones requiring high top speed and aggressive cornering.
  • 5-inch Freestyle Drones where durable props are needed for proximity flying and trick execution.
  • High-performance 4S-6S Long-Range builds that benefit from efficient, high-pitch propellers.
  • Heavy-lift 5-inch Cinewhoop or payload platforms needing reliable thrust.

Technical Specifications

BrandHQProp
Model5131 (R31)
Diameter5.1 inches
Pitch3.1 inches
Blade Count3 (Tri-blade)
MaterialPolycarbonate
Rotation Direction2x CW, 2x CCW
Shaft Bore Diameter5 mm
Hub Diameter13.3 mm
Hub Thickness6.3 mm
Adapter Rings IncludedNo
Weight (per propeller)4.2 grams
ColorGrey

Frequently Asked Questions

What is the recommended motor KV range for the HQProp 5131 (R31) propellers?

These 5.1x3.1 propellers are best paired with medium to high KV motors in the 1700KV to 2600KV range for 5-inch quads. On 4S, aim for 2300-2600KV; for 5S or 6S, use lower KV motors around 1700-2000KV to manage amp draw and maintain efficient performance.

Are these propellers compatible with standard 5mm motor shafts?

Yes, the HQProp 5131 features a standard 5mm bore diameter, making it directly compatible with the vast majority of 5-inch brushless motor shafts. No adapter rings are included or required for motors with a 5mm shaft diameter.

How does the polycarbonate material affect performance compared to nylon?

Polycarbonate offers higher impact resistance and retains its shape better under load than standard nylon composites. This results in more consistent performance and less blade flex at high RPMs, providing predictable thrust and handling, though it may be slightly less forgiving in a direct crash compared to some flexible nylon blends.

Is this a balanced set ready for installation?

HQProp propellers are known for their high manufacturing tolerances and typically exhibit excellent balance straight from the factory. However, for the utmost precision in high-performance racing or cinematic applications, fine-tuning with a propeller balancer is always recommended after installation.

Package Includes

  • 2 x HQProp 5131 (R31) CW (Clockwise) Propellers - Grey
  • 2 x HQProp 5131 (R31) CCW (Counter-Clockwise) Propellers - Grey

Additional Information

Weight 0.03 kg
Dimensions 15 × 15 × 3 cm