Lifeboat fuel-tank sizing for ≥ 24 h continuous autonomy per LSA Code 4.4.6 - includes 25 % safety margin.
Formula
$$ V_{tank} = \frac{P \cdot f \cdot \text{SFC}}{\rho} \cdot 24 \cdot 1.25 $$
Symbol legend
| Symbol | Meaning | Unit | Source |
|---|---|---|---|
| $P$ | Engine rated power | kW | maker plate |
| $SFC$ | Specific fuel consumption | g/kWh | engine data |
| $f$ | Mean load fraction | - | operating profile |
| $\rho$ | Fuel density | kg/L | BDN |
Sources
- LSA Code 4.4.6.