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APC Propellers (APC)
SKU:APC09045MRP
9x4.5 Multi-Rotor Pusher Propeller (APC09045MRP)
9x4.5 Multi-Rotor Pusher Propeller (APC09045MRP)
The 9 x 4.5 inch Multi-Rotor Pusher Propeller is a lightweight, high-RPM option designed for multi-rotor aircraft such as quadcopters. Part of APC’s MR line, it sits between Thin Electric and Slow Flyer propellers, delivering a lighter profile than Thin Electric props while offering higher RPM potential than Slow Flyers.
APC specifies a maximum RPM of 105,000 divided by the prop diameter in inches; for a 9-inch prop, that’s roughly 11,700 RPM. This MR push prop is built to meet the needs of multi-rotor setups that seek a balance of light weight and capable performance at higher speeds.
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Parts List
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Product Manual

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Overview
The 9x4.5 Multi-Rotor Pusher Propeller (APC09045MRP) is specially designed for multi-rotor applications such as quad-copters. APC takes pride in offering propellers that effectively bridge the gap between their Thin Electric and Slow Flyer propellers. The MR propellers are lightweight, providing better performance while maintaining a high RPM capability surpassing that of Slow Flyers.
APC recommends a maximum RPM limit of 105,000 divided by the propeller diameter in inches, ensuring optimal performance for your multi-rotor needs.
Features
- Designed specifically for multi-rotor applications, such as quad-copters
- Bridges the gap between Thin Electric and Slow Flyer propellers
- Lightweight construction for improved efficiency
- Higher RPM capability than Slow Flyer propellers
- APC suggested maximum RPM limit: 105,000 / propeller diameter (inches)
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Specifications
- Propeller Size: 9 x 4.5 inches
- Model Number: APC09045MRP
- Application: Multi-Rotor (Quad-Copters)
- Weight: Lightweight design
- Maximum RPM: 105,000 / propeller diameter (inches)
- Type: Pusher Propeller
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