The TPC curve，one of the hydrostatic curves in a vessel’s plans，gives the number of tons（）.
- Anecessary to change the angle of list 1°at a given draft
- Bnecessary to change trim 1 cm at a given draft
- Cpressure per square cm on the vessel's hull at a given draft
- Dnecessary to further immerse the vessel 1 cm at a given draft