Open-Water KT - Wageningen B-Series
Dimensionless thrust coefficient KT at a given advance coefficient J for a B4-40 Wageningen B-series propeller at P/D = 1.0 - simple regression lookup for preliminary design.
KT (approx)
0.2000 -
Formula, assumptions, and limits
Simplified fit for B4-40 at moderate J. Real B-series uses 39-term polynomial regression (Oosterveld-van Oossanen 1975). For design use full regression or MARIN database.
Symbol legend
| Symbol | Meaning | Unit | Source |
|---|---|---|---|
| Advance coefficient | - | J = V_A / (nD) | |
| Pitch-diameter ratio | - | propeller geometry |