Prop Calculator app for iPhone and iPad

Prop Calculator is a tool that calculates good propeller solutions for a given vessel and engine configuration. Prop Calculator determines both the diameter and pitch for a suitable propeller for both 3-Blade and 4-Blade configurations. It also provides an estimate of the recommended propellers efficiency and the vessels top speed with the given propeller.

Some assumptions must be made to reduce the burden of data collection on the user, and no computational model exists that can account for all of the complexities involved in marine propulsion. As such, the numbers presented by Prop Calculator should be treated as guidelines only, and the experience of a qualified professional should be relied upon to make any final determinations.