Pro-Range D51 2020 Ducted PC 4 Blade 1.5mm Propellers 4CW+4CCW - Clear Gray

Name: Pro-Range D51 2020 Ducted PC 4 Blade 1.5mm Propellers 4CW+4CCW - Clear Gray
Brand: Pro-Range
SKU: DRFC-1175
Price: 249.00 INR
Availability: OutOfStock

₹249.00 (Inclusive of all taxes)

Out of Stock

The Pro-Range D51 2020 is a set of 1.5mm-shaft, 4-blade ducted propellers crafted from polycarbonate (PC) for micro and nano drones. Designed for 1103-1105 brushless motors, these 50.3mm diameter props deliver balanced thrust and stability for smooth, efficient flight in confined spaces.

Features

Ducted 4-blade design optimized for 2-inch and smaller micro/nano drone frames.
Constructed from durable polycarbonate (PC) for a high strength-to-weight ratio.
1.5mm center hole with 3-hole mounting pattern compatible with 1103, 1104, and 1105 brushless motors.
2-inch pitch provides efficient thrust for agile flight performance and improved stability.
Includes a balanced 4CW + 4CCW set for a complete propeller replacement pack.

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Description

The Pro-Range D51 2020 ducted propellers are engineered for the demanding environment of micro FPV and cinewhoop drones. The four-blade configuration and 2-inch pitch generate consistent, smooth thrust ideal for precise control in tight spaces, while the polycarbonate construction ensures the blades can withstand minor impacts without compromising their aerodynamic integrity.

Featuring a 1.5mm shaft diameter and a three-hole mounting pattern, these props are a direct fit for popular 1103, 1104, and 1105 brushless motor sizes commonly used in lightweight builds. The ducted design not only protects the propellers but also enhances low-speed efficiency and directional control, making them a reliable choice for both indoor flight and proximity flying.

Key Features

Four-blade ducted propeller design for enhanced thrust and prop-wash management in confined areas.
High-grade polycarbonate (PC) material delivers excellent durability and vibration damping.
Precision 2-inch pitch and 50.3mm diameter optimized for efficient thrust on 1S-2S micro drone power systems.
1.5mm center hole with triple-hole mounting ensures a secure, concentric fit on 1103-1105 motor shafts.
Clear Gray finish provides a sleek, semi-transparent aesthetic for build customization.
Individually balanced blades from the factory for smooth operation and reduced motor wear.
Ideal balance of stiffness and flexibility to absorb minor impacts without permanent deformation.

Applications

2-inch and smaller micro FPV cinewhoop drones requiring ducted propeller protection.
Lightweight nano drone builds utilizing 1103, 1104, or 1105 brushless motors on 1S-2S LiPo.
Indoor racing and freestyle drones where prop-wash control and durability are critical.
Compact HD digital FPV platforms (e.g., CaddxFPV, Walksnail) that benefit from stable, efficient thrust.
Tiny trainer and beginner drones where propeller guards enhance safety and longevity.

Technical Specifications

Model Series	D51 2020
Number of Blades	4
Material	Polycarbonate (PC)
Rotation Direction	CW & CCW
Set Configuration	4CW + 4CCW
Propeller Diameter	50.3 mm (2 inch)
Pitch	2 inch
Center Hole Diameter	1.5 mm
Mounting Holes	3-hole pattern
Center Thickness	4.5 mm
Compatible Motors	1103, 1104, 1105
Color	Clear Gray
Weight (per prop)	0.91 g

Frequently Asked Questions

What motor sizes are these D51 2020 propellers compatible with?

These propellers are designed for 1103, 1104, and 1105 brushless motors. They feature a 1.5mm center hole diameter and a 3-hole mounting pattern, which is the standard configuration for this motor class. Ensure your motor shaft is 1.5mm and uses a matching 3-hole bolt pattern for a secure fit.

Are these propellers suitable for 3-inch drone frames?

No, the D51 2020 is a 50.3mm (approximately 2-inch) diameter propeller designed specifically for 2-inch and smaller ducted micro and nano drone frames. Using them on a 3-inch frame would result in insufficient thrust and poor flight performance. They are ideal for builds like the Tinyhawk, Mobula6/7, or other compact cinewhoops.

What is the advantage of a 4-blade ducted design over a 2-blade open prop?

The 4-blade design generates more thrust at lower RPMs, improving low-speed control and torque response. The duct (propeller guard) protects the blades from impacts and contains the propeller wash, enhancing stability in turbulent air and during sharp maneuvers. This combination is ideal for precise, indoor FPV flying where durability and smooth handling are prioritized over absolute top speed.

Can I use these on a 3S or 4S LiPo powered micro drone?

It is not recommended. These propellers are optimized for the lower RPM and torque output of 1S and 2S micro drone power systems commonly paired with 1103-1105 motors. Applying 3S or 4S voltage would likely over-speed the props, causing excessive vibration, motor overheating, and potential blade failure due to the high centrifugal forces.

Package Includes

4 x Pro-Range D51 2020 Ducted PC 4-Blade 1.5mm Propellers (CW Rotation) - Clear Gray
4 x Pro-Range D51 2020 Ducted PC 4-Blade 1.5mm Propellers (CCW Rotation) - Clear Gray