Bunker Survey - Wedge Formula
Wedge-formula approximation for fuel volume in a trimmed tank - used when the tank is not fully level (typical sounding condition).
Approx wedge volume
4.90m³
Formula, assumptions, and limits
Only valid when fuel is below aft ullage sensor - gives zero if sounding 0. Surveyors cross-check with capacity tables + trim correction from tank calibration.
Symbol legend
| Symbol | Meaning | Unit | Source |
|---|---|---|---|
| Sounding at low end | m | UTI tape | |
| Wetted length along tank | m | trim geometry | |
| Tank breadth | m | tank GA |