GM from Inclining Experiment
Compute metacentric height from a controlled weight shift and pendulum deflection - the lightship inclining test at delivery and every 5 years.
Measured GM
1.0417m
Formula, assumptions, and limits
IMO IS Code Part B Ch.7 procedure: four weights per side, shift in eight stages, record pendulum deflection at each. Average multiple pendulums to reduce error. Lightship displacement must match the hydrostatic table within ±2 %.
Symbol legend
| Symbol | Meaning | Unit | Source |
|---|---|---|---|
| Each inclining weight moved | t | test equipment | |
| Transverse shift distance | m | test setup | |
| Pendulum length | m | measurement | |
| Pendulum horizontal movement | m | scale reading | |
| Ship displacement at test | t | hydrostatic table | |
| Metacentric height | m | result |