HQProp 7.5X3.7X3 Light Grey (2CW+2CCW) - Poly Carbonate Triblade Propeller

Name: HQProp 7.5X3.7X3 Light Grey (2CW+2CCW) - Poly Carbonate Triblade Propeller
Brand: HQProp
SKU: DRFC-1738
Price: 329.00 INR
Availability: OutOfStock

₹329.00 (Inclusive of all taxes)

Out of Stock

The HQProp 7.5×3.7×3 Poly Carbonate propeller is a high-performance triblade designed for large 7-inch FPV and multirotor drones. This 4-pack (2CW+2CCW) offers a balanced pitch for efficient thrust and agile handling, compatible with standard M5 motor shafts.

Features

7.5-inch diameter with 3.7-inch pitch for high thrust and efficient cruise performance.
Constructed from durable, impact-resistant polycarbonate material.
Triblade (3-blade) design provides a balance of thrust, efficiency, and prop wash control.
Includes 2 clockwise (CW) and 2 counter-clockwise (CCW) propellers for a complete quadcopter set.
Features a 15mm hub with 6.8mm thickness and standard 5mm shaft bore.

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Description

The HQProp 7.5×3.7×3 propeller is engineered for pilots seeking a robust and reliable option for larger 7-inch class drones. The 3.7-inch pitch provides a versatile performance profile, delivering strong low-end thrust for responsive control while maintaining efficient high-speed flight characteristics. Its polycarbonate construction ensures durability against impacts and flex, maintaining blade integrity during aggressive maneuvers.

Designed with a focus on aerodynamic efficiency, the triblade configuration reduces vortex-induced turbulence (prop wash) compared to higher blade counts, offering a crisp and predictable flight feel. The 15mm hub with a 6.8mm thickness provides a secure and vibration-free mounting interface for M5 threaded motor shafts, essential for maintaining flight controller stability in high-performance applications.

Key Features

Optimized Aerodynamic Profile: Blade geometry is tuned for a balance of high static thrust and efficient forward flight, ideal for freestyle and long-range applications.
High-Strength Polycarbonate: Offers superior impact resistance and fatigue life compared to standard nylon composites, reducing breakage in crashes.
Precision-Molded Hubs: 15mm hub diameter with 6.8mm thickness ensures a perfect concentric fit on 5mm motor shafts, minimizing harmonic vibrations.
Performance-Tuned Balance: Factory-balanced design reduces the need for post-purchase balancing, providing smooth operation out of the package.
Lightweight Construction: At 9.4 grams per propeller, it maintains a favorable thrust-to-weight ratio for dynamic flight performance.

Applications

7-inch long-range FPV drones requiring efficient cruise and strong low-end thrust.
Heavy-lift and aerial photography multirotors built on 7-inch frames.
High-speed 7-inch FPV freestyle quads where durability and predictable handling are critical.
Racing-inspired 7-inch builds that benefit from the prop wash control of a triblade design.
DIY experimental and endurance-focused drones utilizing large-diameter propellers.

Technical Specifications

Propeller Diameter	7.5 inches
Propeller Pitch	3.7 inches
Blade Count	3 (Triblade)
Material	Polycarbonate
Rotation Direction	2x CW, 2x CCW
Hub Diameter	15 mm
Hub Thickness	6.8 mm
Shaft Bore Size	5 mm
Adapter Rings Included	No
Weight (per propeller)	9.4 grams
Color	Light Grey

Frequently Asked Questions

What size motor shaft are these HQProp 7.5x3.7x3 propellers designed for?

These propellers are designed for a standard 5mm (M5) threaded motor shaft. The hub features a precise 5mm bore and does not include adapter rings for smaller shafts, so ensure your motors have M5 threading.

Are these propellers suitable for 6S LiPo batteries on a 7-inch drone?

Yes, the polycarbonate construction of the HQProp 7.5x3.7x3 provides the necessary strength and rigidity to handle the high RPM and torque generated by 6S power systems on appropriately sized motors. Always ensure your motor KV and battery voltage are matched to avoid over-propping.

What is the advantage of a 3.7-inch pitch on a 7.5-inch propeller?

A 3.7-inch pitch offers a versatile performance profile. It provides substantial low-end thrust for responsive acceleration and climb-out, while also allowing for efficient high-speed cruise and longer flight times compared to higher-pitch props, making it ideal for freestyle and long-range applications.