APC 21x13.5 EPNC Carbon Electric Pattern Propeller
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APC 21x13.5 EPNC Carbon Electric Pattern Propeller
The APC 21x13.5 EPNC Carbon Electric Pattern Propeller is engineered for electric-powered precision aerobatic aircraft, F3A competition airplanes, and advanced pattern flying setups. The EPNC series combines APC’s proven electric propeller design with carbon reinforcement to reduce weight while maintaining excellent stiffness and smooth flight characteristics.
Designed specifically for electric motors, the APC 21x13.5 EPNC features a thin electric hub configuration and lightweight carbon/composite construction for improved throttle response, braking feel, and efficient power delivery.
Key Features
- 21x13.5 electric pattern propeller
- Lightweight APC EPNC carbon/composite design
- Thin electric hub for electric motor applications
- Reduced rotating mass for smoother throttle transitions
- Excellent stiffness and low vibration characteristics
- Designed for F3A, pattern, and precision aerobatic aircraft
- Includes APC adapter rings
- Electric motor applications only
Specifications
| Brand | APC |
| Propeller Size | 21x13.5 |
| Series | EPNC Carbon Pattern Electric |
| Diameter | 21 inches |
| Pitch | 13.5 inches |
| Material | 40% Carbon / 60% Nylon |
| Hub Diameter | 1.25 in. |
| Hub Thickness | 0.46 in. |
| Shaft Diameter | 1/4 in. |
| Weight | 2.79 oz. |
| Application | Electric RC airplanes only |
| Best Use | F3A, precision aerobatics, pattern flying, IMAC electric aircraft |
What Is APC EPNC?
EPNC stands for APC’s lightweight carbon electric pattern propeller series. These propellers are optimized for precision electric aircraft requiring smooth throttle response, low rotational weight, and efficient braking characteristics.
Compared to standard APC composite propellers, the EPNC series uses carbon reinforcement to reduce weight while maintaining stiffness and efficient blade geometry.
Why Choose the APC 21x13.5 EPNC?
The APC 21x13.5 EPNC is especially popular among advanced electric RC pilots who want predictable throttle feel and efficient flight performance during precision aerobatic maneuvers.
- Lightweight rotating mass
- Smooth electric throttle response
- Excellent braking characteristics
- Efficient blade design
- Low-noise operation
- Strong performance for precision aerobatics
- Competition-proven APC blade geometry
Recommended Aircraft Applications
- F3A competition airplanes
- Electric pattern aircraft
- Precision aerobatic RC airplanes
- IMAC electric aircraft
- Advanced sport electric airplanes
- Giant-scale electric aircraft
Important Setup Notes
- Designed for electric motors only
- Always balance the propeller before operation
- Inspect for cracks or shipping damage before installation
- Use proper adapters and mounting hardware
- Verify ESC, motor, and battery compatibility
- Check current draw with a watt meter after installation
- Never exceed APC recommended RPM limits
Frequently Asked Questions
What does EPNC mean?
EPNC refers to APC’s carbon electric pattern propeller series designed for lightweight precision electric aircraft performance. :contentReference[oaicite:1]{index=1}
Is this propeller designed for gas engines?
No. The APC 21x13.5 EPNC is designed specifically for electric motor applications only. :contentReference[oaicite:2]{index=2}
What is the propeller made from?
The APC EPNC series uses a 40% carbon and 60% nylon composite blend. :contentReference[oaicite:3]{index=3}
Does this propeller include adapter rings?
Yes. APC includes LPAR06E adapter rings with the propeller. :contentReference[oaicite:4]{index=4}
What aircraft work best with a 21x13.5 EPNC propeller?
This size is commonly used on F3A pattern aircraft, precision aerobatic RC airplanes, and advanced electric competition aircraft.
What’s Included
- One APC 21x13.5 EPNC carbon electric pattern propeller
- One set of APC adapter rings
Motor, spinner, mounting hardware, and aircraft are not included unless otherwise stated.
- SKU LP210135EPNC