Thrust-deduction fraction t from the Holtrop-Mennen resistance regression - used to convert propeller thrust to ship resistance.
Formula
$$ t \approx 0.25 C_B - 0.015 + 0.001 \cdot \frac{B}{L} \cdot 100 $$
Symbol legend
| Symbol | Meaning | Unit | Source |
|---|---|---|---|
| $C_B$ | Block coefficient | - | hydrostatics |
| $B/L$ | Beam-length ratio | - | ship particulars |
Sources
- Holtrop J. - Int. Shipbuilding Progress 1984.