Marine Propeller Wageningen B-Series Thrust Calculator

Compute propeller advance ratio ($J$), thrust coefficient ($K_T$), torque coefficient ($K_Q$), open water efficiency ($\eta_0$), and Keller cavitation blade area ratio.

Propeller Geometry & Operating Speeds

Propeller Diameter D (m):

Pitch-to-Diameter Ratio P/D:

Shaft Speed n (RPM):

Advance Speed v_A (knots): Speed through wake: v_A = V_s · (1 - w)

Number of Blades Z:

Expanded Area Ratio (A_E / A_0):

Thrust, Torque & Open Water Efficiency

Delivered Thrust (T)

Open Water Efficiency (η₀)

Thrust Coeff K_T

Torque Coeff K_Q

Shaft Torque (Q)

Keller Cavitation Inception Check

Min Keller Blade Area Ratio: -- | Cavitation Status: OK

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Marine Propeller Wageningen B-Series Thrust Calculator

Propeller Geometry & Operating Speeds

Thrust, Torque & Open Water Efficiency

Frequently Asked Questions