As Chief Engineer, what do you coordinate with the master for dry-dock entry, how do you prepare and divide duties among the engineers, and what must be checked with the dock before undocking?

flowchart LR
  A["Entry: stability, docking plan and shore services agreed with the master"] --> B["In dock: work list, permits, earmarked duties"]
  B --> C["Underwater survey passed with the class surveyor"]
  C --> D["Box-up: every opening, valve and plug tallied"]
  D --> E["Authority to flood signed with the dockmaster"]
  E --> F["Watch the openings and stern tube for leaks"]

• Docking is a stability and manoeuvring evolution the master and dockmaster control. Give accurate tank soundings for the docking stability.
• Arrive at a moderate trim, a positive and adequate GM and minimal free surface. Stability can be lost when the keel lands on the blocks and as she lifts off.
• Agree the docking plan and the changeover to shore services (power, cooling water, fire main) before the sea-water systems are shut.
• Undocking is the one-way door: every underwater item must be complete, passed and boxed up before flooding.
• The tailshaft, propeller, rudder, shell plating and sea connections cannot be re-examined once afloat.
• Recompute the refloating stability from the on-block soundings. Sign the authority to flood only when the surveyor has signed off, permits are closed and the dock floor is clear.