Falcon 89mm (3.5") Carbon Fiber Spinner – 3 Blade Vented

Falcon Spinner, 89mm (3.5") Carbon Fiber, 3 Blade, Vented for RC Planes is a premium lightweight spinner designed for RC airplanes using 3-blade propellers. Built from high-strength carbon fiber and paired with a precision-machined anodized aluminum backplate, this spinner delivers excellent balance, cooling airflow, and a clean scale appearance.

Key Features

• 89mm (3.5") diameter – ideal for mid to large RC airplanes
• Designed specifically for 3-blade propellers
• Lightweight carbon fiber construction reduces rotational mass
• Pre-cut propeller slots – no trimming required
• CNC-machined vented cooling holes for improved airflow
• Precision anodized aluminum backplate with structural support arms
• Improved cooling airflow to motor and ESC during operation

Specifications

• Diameter: 89mm (3.5")
• Length (backplate to tip): 80mm (3.15")
• Weight (with backplate): 27g (0.96 oz)
• Material: Carbon Fiber Spinner Cone + Aluminum Backplate
• Blade Type: 3-Blade
• Shaft Compatibility:
  • 8mm shaft with included insert (common for most motors)
  • 10mm shaft without insert

What’s Included

• Carbon fiber spinner cone
• Anodized aluminum backplate
• 8mm shaft insert adapter
• Mounting hardware

Compatibility & Use

• Electric  RC airplanes using 3-blade propellers
• Scale aircraft requiring a clean and realistic nose profile
• F3A and precision aerobatic models
• Sport and performance RC airplanes needing improved cooling

The vented spinner design allows direct intake of cooling air through the front of the spinner. Combined with the lightweight anodized backplate and integrated support arm structure, airflow is efficiently directed toward the motor and ESC to help reduce operating temperatures.

Why Choose a 3-Blade Spinner?

• Improved scale appearance for warbirds and civilian aircraft
• Smoother throttle response and more controlled flight feel
• Allows larger propeller disk area within a smaller diameter spinner
• Often referred to as the "Poor Man’s Contra" due to smoother and more deliberate flight characteristics

Installation Notes

• Verify shaft size (8mm or 10mm) before installation
• Ensure proper spinner and propeller balance before flight
• Use thread locker on mounting screws
• Check blade clearance within pre-cut slots before operation

Modeler’s Tip

For best performance, pair this spinner with high-quality Falcon 3-blade propellers and ensure proper dynamic balancing. A properly balanced spinner reduces vibration, improves efficiency, and extends motor and bearing life.

Recommended Add-On

• F3A Unlimited Replacement Spinner Screws (10-Pack) – ideal for maintenance and field repairs