Key takeaways
- Cargo aboard changes the condition being modelled.
- A laden leg is not necessarily the whole commercial voyage.
Separate passage and employment boundaries
An arrival forecast may concern only the next sea passage, while an earnings estimate covers a longer period. Put a label on each duration so the team does not use one figure for both purposes.
- Identify the loading completion and subsequent cargo-carrying passage.
- Record the relevant vessel condition and performance assumptions.
- Show discharge time and other employment activities separately.
If the vessel has more than one discharge call, describe how the cargo-carrying condition changes along the itinerary. Do not silently reuse the initial condition for every leg when preparing an operational estimate.
Common mistakes
Avoid equating laden distance with total voyage distance. Do not blend port consumption and sea-passage consumption into an unexplained average. Keep the technical basis provided by the vessel team visible to the commercial reviewer.
Where Zeaclub fits
Zeaclub supports agentic, AI-assisted operations with a human in control.
Zeaclub provides a multi-party shared workspace for owners, charterers, brokers and port agents.
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Educational information only; not legal, financial or trading advice. Contract wording and applicable rules control. Verify current requirements and obtain qualified advice before acting.
Frequently asked questions
Does laden mean fully loaded?
Not necessarily. A ship can carry cargo without using all available capacity.
Is laden passage time the entire voyage duration?
No. Positioning and port activity may also belong in the calculation.
Why distinguish laden and ballast assumptions?
The vessel's condition can affect the performance inputs used in planning.
Who confirms the operational basis?
The appropriate vessel and operations personnel should supply and review that information.