boat propeller

Sizing Form

Please complete our online SIZING FORM to better assist you.


Basic diagnosis of engine RPM/prop pitching problems

Prop Expert

(more detailed and accurate than UCALC)
PropExpert is a software tool for the sizing and analysis of propellers for work boats and pleasure craft. It provides the tools needed for the proper selection of propulsion system components - engine, reduction gear and propeller - and has been selected as the principal propeller sizing tool of many of the best known manufacturers and distributors of marine engines and propellers.

Crystal Ball

Used to demonstrate how changes in the physical nature of a propeller can affect engine RPM.

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AccuTech Marine Propeller, Inc, Propellers, Dover, NH
Member of the National Marine Propeller Association