Prismatic Coefficient (Cp)
Longitudinal fullness - Cp = Cb / Cm. A finer stern/bow has lower Cp; a parallel mid-body ship has higher Cp.
Prismatic coefficient Cp
0.822–
Formula, assumptions, and limits
Cp indicates how 'prismatic' the hull is along its length. Cargo ships 0.75–0.85; container / ro-ro 0.60–0.70; fast craft 0.55–0.60.
Symbol legend
| Symbol | Meaning | Unit | Source |
|---|---|---|---|
| Block coefficient | - | hydrostatic table | |
| Midship section coefficient | - | hydrostatic table | |
| Prismatic coefficient | - | result |