Collision Bulkhead Position (SOLAS II-1 Reg 11)
Collision bulkhead must sit between 0.05·Ls and 0.08·Ls from the forward perpendicular (up to 3 m).
Minimum distance from FP
10.00m
Maximum distance from FP
16.00m
SOLAS Reg 11 compliance
Compliant
Formula, assumptions, and limits
$$0.05 L_s \leq x \leq 0.08 L_s$$
SOLAS II-1 Reg 11 - the first watertight bulkhead fwd. Upper limit 0.08 Ls relaxed to 0.10 for certain passenger ships per latest amendments. Forecastle extension must be stepped - plans must show it.
Symbol legend
| Symbol | Meaning | Unit | Source |
|---|---|---|---|
| $L_s$ | Subdivision length | m | SOLAS Reg 2 |
| $x$ | Bulkhead distance from FP | m | GA plan |
Spotted an error in this calculation? . We acknowledge editorial corrections within two working days.