Wondering what prop size is being used on a 40hp Honda on a 16 ft c-dory. Got a hobby boat (16ft cabin skiff ) which is a similar design to the c-dory, and it had a prop that was spun on the hub, and the markings indistinguishable. Pretty flat pitch, and a yamaha prop. Would like to go to a Honda oem. Thank you for the help. My day out on the water was offload the boat, idle away from dock, start accelerating and then it sounded like full blown cavitation, and idle back to dock. Tie alongside dock, put in gear, start gassing, and spinning hub. Reload. 95 degree day with 5 minutes on water.
Ron
Ron