APC Slo-Flyer Propeller, 7x4 SF

The APC 7x4 Slow Flyer Electric Propeller (model APC07040SF) is engineered for electric-powered RC aircraft, particularly slow flyers and park flyers. Its design emphasizes efficiency, low noise, and precise control at lower RPMs.

Key Features

• Diameter: 7.00 inches (177.8 mm)

• Pitch: 4.00 inches (101.6 mm)

• Hub Diameter: 0.50 inches (12.7 mm)

• Hub Thickness: 0.32 inches (8.13 mm)

• Shaft Diameter: 0.25 inches (6.35 mm)

• Weight: 0.18 ounces (5.1 grams)

• Rotation: Standard (counterclockwise when viewed from the front)

• Material: Fiberglass-reinforced nylon composite

• Color: Grey

Design & Performance

Manufactured using a pultrusion process, this propeller boasts a higher fiber-to-resin ratio, enhancing strength and stiffness compared to traditional glass-filled nylon props. The computer-optimized design ensures a thinner profile, resulting in reduced noise and improved aerodynamic efficiency. Its lightweight construction minimizes rotating mass, leading to better throttle response and extended motor life.

Included Accessories

• One set of adapter rings (LPAR18SF) to fit various motor shaft size.

For optimal performance and reduced vibration, it's recommended to balance the propeller before use. This propeller is intended for electric motors only and is not suitable for glow engines.