Cup
Small radius of curvature located on the trailing edge of the blade. This curved lip on the propeller blade increases efficiency in high speed/high RPM applications where the propeller is cavitating.
The Michigan Wheel guide to understanding propellers. Here you will find everything from propeller parts to terminology that will help you understand how boat propellers work.
Filters
Customer Service
Customer Service hours are 8:00am-5:00pm ET, Mon-Fri. If you have questions, please call toll-free 800-369-4335 or submit an inquiry.
www.mmp-i.com 
