PBCF - Propeller Boss Cap Fin Savings
Estimated fuel saving from a Propeller Boss Cap Fin (PBCF) - 3–5 % through hub-vortex elimination, scales with propeller load.
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Formula, assumptions, and limits
| Symbol | Meaning | Unit |
|---|---|---|
| Main-engine power | kW | |
| Specific fuel consumption | g/kWh | |
| ESD saving fraction |
Source: MOL PBCF technical bulletins
In short
Estimated fuel saving from a Propeller Boss Cap Fin (PBCF) - 3\u20135 % through hub-vortex elimination, scales with propeller load.