APC Props Prop 7X4SF-B4 2CW & 2CCW RC Aircraft Propeller - APC07040SF-B4

The APC Props 7X4SF-B4 propeller set (style code APC07040SF-B4) is a four-prop multi-pack designed for counter-rotating RC aircraft setups, supplying two clockwise and two counter-clockwise 7x4 slow-flyer props in a single purchase. APC is a well-regarded name in RC propellers, and this set is aimed at multi-motor fixed-wing aircraft and similar builds where matched pairs of counter-rotating props are required for balanced thrust and torque cancellation.

Key Features

• 7-inch diameter with a 4-inch pitch, suited to slow-flyer motor configurations
• Pack contains two clockwise (CW) and two counter-clockwise (CCW) props, giving you a matched counter-rotating pair plus one spare of each
• Slow-flyer geometry is optimised for lower RPM, high-efficiency power systems common in park flyers and lightweight fixed-wing builds
• APC manufacture their props to consistent pitch and balance tolerances, reducing vibration at the motor
• Four-prop pack makes it practical to replace both positions on a twin-motor aircraft and retain spares

What's Included

• 2 x APC 7x4SF clockwise (CW) propellers
• 2 x APC 7x4SF counter-clockwise (CCW) propellers

What You Need

• Compatible RC aircraft or multi-motor fixed-wing airframe requiring 7-inch counter-rotating props
• Appropriate motor collets, adapters, or prop savers to suit your motor shaft diameter
• Prop balancer recommended to check balance before fitting