TPC from Waterplane Simpson's Rule
Tonnes per centimetre (TPC) at any draft from waterplane-area ordinates using Simpson's composite rule - the hydrostatic table entry for draft sensitivity.
Waterplane area A_w
2,800.0m²
TPC
28.700t/cm
Formula, assumptions, and limits
Ordinates y are half-breadths at each station (0 to 4). Multiplies by 2 for full area. Valid for ships with symmetric waterplane about centreline.
Symbol legend
| Symbol | Meaning | Unit | Source |
|---|---|---|---|
| Waterplane area (full) | m² | Simpson sum × 2 | |
| Water density | kg/m³ | hydrometer |