For hobbyists seeking high-thrust, scale-like performance from electric ducted fans, larger diameter fans deliver impressive speed and lift. The following selection focuses on high-thrust, 64mm to 90mm and beyond, suitable for 6S and higher power configurations. Each entry includes key specs, recommended setups, and practical notes to help you compare options for bigger RC jets and models.
Summary of Selected Products
- ApisQueen 90mm EDF, 6S, 2300KV — Up to 3790 g thrust
- XFLY-MODEL 70mm 12-Blade EDF, 6S — Up to 2400 g thrust
- ApisQueen 70mm EDF, 6S, 2300KV — Up to 2240 g thrust
- XFLY-MODEL 64mm 12-Blade EDF, 6S — Up to 1800 g thrust
- XFLY-MODEL 64mm 12-Blade EDF, 4S — Up to 1250 g thrust
ApisQueen 90mm EDF 6S 1450KV 3790G Thrust Belt 12 Blades
The ApisQueen 90mm electric ducted fan (EDF) features a 6S 1450KV motor setup designed for high thrust. The package includes an 11- or 12-blade high-quality ducted fan, a compact design, and a belt-driven assembly approach that supports robust performance. With a maximum thrust rating reported around 3790 g and full-load efficiency, this unit targets larger RC jets and scale aircraft requiring substantial lift and speed. Compatible with ESC and battery configurations suitable for 6S operation, it emphasizes a stable, high-temperature capable motor and reliable operation across sustained flight. The total EDF weight is around 178 g, and the motor weight is roughly 108 g, helping maintain favorable balance on larger airframes.
XFLY-MODEL 70mm 12 Blades EDF Ducted Fan
The XFLY-MODEL 70mm EDF uses a brushless inrunner with a high-efficiency KV rating (2680-KV2200) and anhedral blade design aimed at delivering strong thrust for large RC jets. With a max continuous current up to 100 A and thrust around 2400 g, this unit requires a robust 6S configuration and an ESC rated for 80 A. The combination of an upgraded EDF housing and 12 blades contributes to stable operation and strong pull in demanding aerobatic and scale flight scenarios. The unit weight is approximately 239 g, making it a substantial install for mid- to large-size airframes.
ApisQueen 70MM EDF 6S 2300KV 2240G Thrust Belt
This 70mm EDF from ApisQueen is built for 6S operation with a 2300 KV motor, delivering up to 2240 g of thrust. It uses a high-quality ducted fan with 11 blades and a removable guide ring for model versatility. The unit weighs around 178 g for the complete EDF assembly and 108 g for the motor itself. The design emphasizes easy operation and reliable power delivery for faster-scale jets and sport models, with banana plug soldering completed on all motors for straightforward installation.
XFLY-MODEL 64mm 12 Blades EDF Ducted Fan 6S 2840-KV3200
This 64mm EDF from XFLY-MODEL pairs a brushless outrunner 2840-KV3200 motor with a 6S battery to deliver up to 1250 g of thrust. The unit emphasizes a matte-finish finish on the EDF housing and blades, with a recommended 40 A ESC. Weighing about 133 g for the EDF, this option is well-suited for smaller-large airframes and sport jets where compact size and solid thrust are desired. The design supports stable, continuous operation for extended flights and robust performance in racing- or profile-style models.
If you are seeking additional 64mm and 50mm options, consider the remaining entries in this list that balance thrust, weight, and power draw for different model sizes and flight regimes. These large EDF choices are designed to help pilots scale up their jets while maintaining dependable handling and efficiency.
Buying Guide: Key Purchase Considerations
- Size and compatibility: Match the EDF diameter (e.g., 64 mm, 70 mm, 90 mm) to your airframe’s intake, fuselage, and mounting points. Larger fans require more robust airframes and cooling, plus space for mounting hardware and wiring.
- Motor type and KV rating: Brushless outrunners (external) vs. inrunners influence thrust, efficiency, and heat. Higher KV motors deliver more RPM and thrust but may demand higher current and better cooling; ensure your ESC and battery can handle sustained loads.
- Battery and ESC pairing: For 6S configurations, select an ESC with a continuous current rating above the maximum draw of the fan-motor system (often 40–100 A or more). Battery capacity and discharge rate (C rating) should align with peak current demands and airframe balance.
- Thrust-to-weight and balance: Consider the total thrust achievable with the EDF and how it compares to your model’s weight. Aim for a positive pitch thrust-to-weight ratio that matches your flight profile (sport, scale, or aerobatic).
- Cooling and endurance: Larger fans pull more power and generate heat. Ensure adequate cooling paths around the motor and ESC, and account for operational temperatures during longer flights or high-thrust maneuvers.
- Installation and integration: Check for compatibility with existing mounting plates, spinner designs, and guide rings. Verify soldering quality and connector types (banana plugs, bullet connectors) to minimize resistance and ensure reliable power delivery.
- Maintenance and durability: Look for robust housing materials, blade quality, and adjustable components (e.g., removable guide rings) to simplify maintenance and field repairs after flights.
- Flight planning considerations: When upgrading to a large EDF, adjust control settings and flight envelopes to account for altered throttle response, acceleration, and stall characteristics inherent to higher-thrust fans.