Bollard Pull - BHP Conversion
Bollard pull in tonnes from brake horse power using the empirical BP/BHP coefficient - the quick tug-capability screen.
Bollard pull
45.5t
Formula, assumptions, and limits
For certification, BP from static test per ABS/LR/DNV Guides at 100 % MCR. Dynamic BP (at zero speed through water) lower than static due to propeller cavitation.
Symbol legend
| Symbol | Meaning | Unit | Source |
|---|---|---|---|
| Brake power | kW | engine maker | |
| BP/kW coefficient | t/kW | tug trials |