Answer
Oct 08, 2025 - 12:09 PM
The numbers on an outboard prop represent the diameter and pitch of the propeller. The first number is the diameter, which is the distance across the circle that the propeller would make when it rotates, and the second number is the pitch, the theoretical distance the propeller would move forward in one revolution. This information was found on "https://www.boats.net/blog/understanding-propeller-size" under the section 'Reading Prop Sizes.'
