Optimum B-Series Propeller (Fixed diameter) - Calculator

Use this calculator to determine the optimum Wageningen B-Series propeller for a given propeller diameter.

The expanded area ratio Ae/Ao can be estimated using the proposed equation by Keller to avoid cavitation if 0 is entered below.

Use following link for example use: link

Please be aware that the calculator do not account for everything. Garbage in equals garbage out.

Property Symbol Value Unit
Ship speed Vs knots
Required thrust Tr kN
Wake fraction w
Number of propellers NP
Propeller diameter D m
Number of propeller blades per propeller Z
Expanded area ratio (Enter 0 and it is estimated using Keller) Ae/Ao
Depth from water surface to propeller hub center
(Only needed if 0 is entered as expanded area ratio)		 h m