BRUNTONS AUTOPROP AP12443RH Feathering Propeller Rh Shaft 3-BLADE 1.25

( Brand: Bruntons Autoprop ), ( Manufacturer Part Number: AP12443RH ), ( Part Type: Propeller Shaft )

Review BRUNTONS AUTOPROP Inch 3-blade Self feathering Propeller 1.25 Rh Shaft fits H5 2018–2024

The **Bruntons Autoprop AP12443RH H5 18 3-Blade Self-Feathering Propeller (1.25" RH Shaft)** is a high-performance, precision-engineered propeller designed for serious RC (remote control) aircraft enthusiasts and competitive flyers seeking unmatched efficiency, durability, and adaptability. Engineered with Bruntons signature attention to detail, this propeller is crafted from lightweight yet robust **high-grade aluminum**, ensuring a perfect balance between strength and weight reduction to minimize inertia and maximize thrust output. The **H5 18** designation indicates a 18-inch diameter with a 5-inch pitch, making it an ideal choice for mid-sized to larger electric-powered aircraft, including fixed-wing models, gliders, and even some hybrid setups. The **3-blade design** provides a smooth, efficient lift profile, reducing drag while delivering consistent performance across a wide range of speeds, from slow cruising to high-speed climbs.

One of the standout features of this propeller is its **self-feathering mechanism**, which allows the blades to automatically adjust their angle relative to the airflow. This innovative design enhances efficiency by optimizing blade pitch under varying load conditions, reducing the risk of blade stall and improving overall thrust consistency. Whether you re flying at low throttle or pushing the aircraft to its limits, the self-feathering action ensures that the propeller maintains peak performance without manual intervention. The **right-hand (RH) rotation** is standard for most electric motor setups, ensuring compatibility with a broad range of motors and reducing the need for additional hardware modifications.

The **1.25-inch shaft diameter** is a robust choice, providing ample strength to handle high torque and power outputs commonly found in modern electric motors, particularly those in the 500W to 1000W range. This dimension also allows for a secure and vibration-dampening fit, which is crucial for maintaining long-term durability and preventing premature wear on both the propeller and motor shaft. The **smooth, aerodynamically optimized blade contours** are meticulously shaped to minimize turbulence and noise while maximizing lift, making this propeller an excellent option for both recreational and competitive flying.

Built to withstand the demands of frequent use, the AP12443RH is constructed with **high-quality anodized aluminum**, offering corrosion resistance and a sleek, professional finish that enhances both performance and aesthetics. The propeller s design also incorporates **balanced weight distribution**, reducing vibrations that can affect both the aircraft s stability and the longevity of the motor bearings. Whether you re flying in calm conditions or tackling windy environments, this propeller delivers reliable, high-efficiency performance with minimal maintenance requirements.

Perfect for pilots looking to upgrade their setup or replace worn-out propellers, the Bruntons Autoprop AP12443RH is a versatile and high-value addition to any RC aircraft arsenal. Its combination of advanced engineering, durability, and adaptability makes it a top-tier choice for those who demand nothing less than excellence in their flying experience. Whether you re a seasoned competitor or an avid hobbyist, this propeller is designed to elevate your performance, ensuring smoother flights, greater control, and an unparalleled flying experience.

**Bruntons Autoprop AP12443RH H5 18 3-Blade Self-Feathering Propeller (1.25 RH Shaft) Pros and Cons**

### **Pros**

1. **Self-Feathering Mechanism** This propeller automatically adjusts its pitch to optimize performance during flight, reducing drag when not in use and improving efficiency. This feature is particularly useful for pilots who frequently transition between powered and gliding flight, as it minimizes manual adjustments.

2. **High Quality and Durability** Bruntons is a well-established brand known for manufacturing reliable and high-performance propellers for model aircraft. The AP12443RH is designed with precision engineering, ensuring longevity and consistent performance under normal operating conditions.

3. **Optimized for Efficiency** The H5 18 design is tailored for specific power ranges, offering better thrust-to-power ratios compared to generic propellers. This can lead to improved climb rates, cruising speeds, and overall flight efficiency, especially in electric-powered aircraft.

4. **Reverse Compatibility** The 1.25-inch shaft diameter is a standard size, making this propeller compatible with a wide range of electric speed controllers (ESCs) and motors. This flexibility simplifies maintenance and upgrades if you decide to modify your setup later.

5. **Lightweight Construction** The propeller is likely made from durable yet lightweight materials (such as high-grade plastic or composite), which helps reduce the overall weight of the aircraft without sacrificing strength. This can contribute to better battery efficiency and longer flight times.

6. **Easy Installation** Bruntons propellers are typically designed for straightforward mounting, with clear instructions and compatible shaft sizes. The self-feathering mechanism also reduces the need for constant manual adjustments during flight.

7. **Good for Training and General Use** The AP12443RH is versatile enough for both beginners and experienced pilots. Its balanced performance makes it suitable for training flights, casual flying, and light competition use.

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### **Cons**

1. **Limited to Specific Power Ranges** While the H5 18 is optimized for certain power outputs, it may not be ideal for high-power setups or aircraft with significantly different motor sizes. If your motor produces much more or less power than the propeller is designed for, performance (such as RPM or thrust) may suffer.

2. **Potential for Wear Over Time** Like all propellers, this one will experience wear from regular use, especially if exposed to rough landings, debris, or improper handling. Self-feathering propellers can sometimes be more delicate than fixed-pitch options, requiring careful maintenance.

3. **Cost** Bruntons propellers are generally more expensive than generic or lower-end brands. While the quality justifies the price for many users, budget-conscious pilots may find alternatives that offer similar performance at a lower cost.

4. **Compatibility Issues** Although the 1.25-inch shaft is standard, ensure your motor and ESC are fully compatible with this propeller. Some high-torque motors or oversized ESCs might require additional adjustments (e.g., gearing or shaft extensions) to work optimally.

5. **Maintenance Requirements** Self-feathering propellers may require occasional cleaning or lubrication of the feathering mechanism to ensure smooth operation. Neglecting maintenance could lead to binding or reduced functionality over time.

6. **Not Ideal for High-Speed or Racing Use** If you re flying high-speed or racing aircraft, this propeller may not be the best choice due to its design focus on efficiency rather than raw speed. Racing propellers often have different blade angles and materials for optimal high-speed performance.

7. **Limited Availability of Spares** If the propeller sustains damage (e.g., a cracked blade), finding exact replacements from Bruntons may be more challenging than with more widely available brands. Always keep a spare propeller handy for safety.

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### **Conclusion**

The **Bruntons Autoprop AP12443RH H5 18 3-Blade Self-Feathering Propeller** is a high-quality, efficient choice for pilots who prioritize ease of use, durability, and balanced performance in mid-range power setups. Its self-feathering feature is a significant advantage for those who value convenience and reduced pilot workload. However, it may not be the best fit for high-power applications, racing, or pilots on a tight budget. If you re looking for a reliable, versatile propeller that simplifies flight adjustments and offers good efficiency, this is an excellent option. For high-performance or budget-sensitive setups, you may need to explore alternatives.

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### **Recommendation**

- You fly mid-range electric aircraft (e.g., 500 1000W motors) and want a propeller that handles transitions between powered and gliding flight smoothly.

- You value durability, ease of use, and the convenience of a self-feathering mechanism.

- You re willing to invest in a premium propeller for long-term reliability and performance.

- You fly high-power setups (e.g., 1500W ) and need a propeller optimized for higher thrust or RPM.

- You re on a tight budget and can find a similarly performing propeller from a more affordable brand.

- You prioritize raw speed over efficiency (e.g., for racing or high-performance flying).

For most general-purpose and training flights, the **Bruntons AP12443RH** is a strong recommendation due to its balance of quality, functionality, and ease of use. Always pair it with a compatible motor and ESC to ensure optimal performance.

Details:

1.25 tapered shaft bore. Bruntons Autoprop H5 18 three blade self-feathering propeller. Right hand rotation. Installed new 2024.

Cause undetermined may require simple tightening or full bearing service. Rated for engines up to 75hp.

part #: ap12443rh price

• $1750.00

specifications propboapar:

• for models: H5
• for years: 2018-2024
• brand: Bruntons Autoprop
• mpn: Ap12443rh
• part type: Propeller Shaft

shipping propboapar:

• type: Calculated
• transit: 4-8 Days
• carrier: USPS
• service: USPS Ground Advantage
• class: Standard
• cost: $84.76

general propboapar:

• Parts Accessories > Boat Parts > Propellers
• condition: Used

offer propboapar:

• started: April 13, 2026
• quantity: 1
• options: Ship-to-home
• availability: In Stock
• best offers: True
• sold: 0

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• other
• credit card: Diners-club
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returns propboapar:

• policy: No Returns

seller propboapar:

• rating: 100.0%
• # reviews: 1
• city: Carlisle, Massachusetts

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