Falcon 21.5x13 Carbon Fiber Electric Propeller | F3A Pattern RC Aircraft
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Falcon 21.5x13 Carbon Fiber Electric Propeller for RC Airplanes
The Falcon 21.5x13 Carbon Fiber Electric Propeller is built for electric RC pilots who demand precision, efficiency, and consistent performance. Crafted from high-quality carbon fiber, this propeller delivers excellent rigidity, reduced vibration, and superior durability compared to wood alternatives — making it a top choice for F3A, pattern, aerobatic, and giant-scale electric aircraft.
Falcon carbon fiber electric propellers are recognized as one of the best-selling and most trusted brands in the RC propeller market. Known for their consistent manufacturing quality, factory inspection, and pre-balanced construction, Falcon CF props are a proven upgrade for serious electric RC pilots.
Key Features
- Size: 21.5x13
- Material: Carbon fiber construction
- Power Type: Electric RC aircraft
- Factory pre-balanced: Ready to fly right out of the package
- Individually inspected: Leading edges and epoxy verified at the factory
- Solid hub design: Can be drilled for multi-bolt hub setups
- Includes propeller covers: Protective covers included for storage and transport
- Ideal use: F3A, pattern flying, aerobatics, and giant-scale electric airplanes
Specifications
| Brand | Falcon Propellers |
| Propeller Size | 21.5x13 |
| Diameter | 21.5 in. |
| Pitch | 13 in. |
| Material | Carbon Fiber |
| Power System | Electric |
| Balance | Factory pre-balanced |
| Includes | Propeller covers |
| Application | F3A, pattern RC, aerobatic aircraft, giant-scale electric models |
Recommended Use
The Falcon 21.5x13 carbon fiber electric propeller is best suited for large electric RC airplanes that need a high-pitch, large-diameter prop for speed, vertical performance, and aggressive aerobatic capability. This size is commonly used in F3A and pattern competition aircraft, as well as giant-scale electric setups where efficient high-speed airflow and precise throttle response are critical.
Why Choose a Falcon Carbon Fiber Electric Propeller?
Falcon carbon fiber propellers are a top choice for competitive and performance-minded RC pilots who want the best combination of stiffness, balance, and durability. Carbon fiber offers significantly greater rigidity than wood or nylon composite props, reducing flex under load and delivering more consistent thrust at high RPM.
- Superior rigidity reduces blade flex and vibration under load
- Factory inspection ensures correct leading edge shape and bubble-free epoxy
- Pre-balanced from the factory for immediate use
- Solid hub can be drilled to fit multi-bolt prop hubs
- One of the quietest carbon fiber propellers available in this size range
- Trusted by F3A and pattern pilots worldwide
Important Setup Notes
- Verify propeller balance before each flying session, even on factory-balanced props.
- Inspect the propeller for cracks, chips, or shipping damage before installation.
- Confirm adequate motor clearance and ground clearance for your airframe.
- Use the correct prop washer, prop nut, and spinner/backplate for your aircraft.
- Check amp draw with a watt meter after installing to protect your motor and ESC.
- Never stand in line with the propeller arc during motor testing or run-up.
Frequently Asked Questions
Is this propeller for electric or gas RC airplanes?
This listing is for the electric version of the Falcon 21.5x13 carbon fiber propeller. It is designed specifically for electric RC airplane power systems.
Can I use this on a gas or glow engine?
This propeller is intended for electric applications only. For gas or glow engines, use a Falcon gas carbon fiber or gas wood propeller in the correct size for your engine displacement and aircraft.
Is the Falcon 21.5x13 carbon fiber propeller pre-balanced?
Yes. Falcon carbon fiber propellers are factory pre-balanced and individually inspected before shipping. However, it is always good practice to verify balance yourself before each use.
What type of aircraft is this propeller good for?
The 21.5x13 size is commonly used on large electric RC airplanes competing in F3A and pattern events, as well as giant-scale aerobatic and sport aircraft that require a large-diameter, high-pitch propeller for strong vertical and speed performance.
Does this propeller include covers?
Yes. The Falcon 21.5x13 carbon fiber electric propeller includes a set of propeller covers for safe storage and transport.
Do I need to check amp draw after installing this propeller?
Yes. Any propeller change — especially moving to a larger diameter or higher pitch — can significantly affect motor load, ESC temperature, battery draw, and flight time. Always use a watt meter to confirm your setup is within the safe operating limits of your motor, ESC, and battery pack.
What's Included
- One Falcon 21.5x13 carbon fiber electric propeller
- One set of propeller covers
Motor, spinner, prop adapter, hardware, and aircraft shown in example applications are not included unless specifically stated above.