The 14x5.5 Multi-Rotor Propeller is a lightweight, 14-inch prop designed for quadcopters and other multi-rotor aircraft. Part of APC’s Multi-Rotor (MR) line, it sits between Thin Electric and Slow Flyer props, offering a lighter profile with higher RPM potential for efficient lift and responsive handling in multi-rotor flight. With a 14-inch diameter and 5.5-inch pitch, this MR prop is optimized for multi-rotor use. APC’s suggested maximum RPM is 105,000 divided by the prop diameter in inches; for a 14-inch prop that’s roughly 7,500 RPM. MR props are lighter than Thin Electric props and provide higher RPM capability than Slow Flyers, making them a balanced choice for stable hover, quick throttle response, and efficient climb on many quadcopter configurations.
