USER GUIDE
Solve common problems safely
If a source, access, location permission or vessel detail is missing, CaptainCalc explains what is needed. Check the connection, permissions and data date, then try again without using an outdated value.
How to interpret it safely
If a source, access, location permission or vessel detail is missing, CaptainCalc explains what is needed. Check the connection, permissions and data date, then try again without using an outdated value.
The user guide explains what the information means, how the result is produced and which warnings or limits matter.
See the main screens
What to know before you use it
How to use this feature well
If a feature is unavailable, check vessel setup, installed data, connection, permissions and access one by one. Keep local records safe and confirm recovery before repeating the task.
Where the information comes from
Solve common problems safely: Before using a result, check its provider, datum, time basis, confidence and installed-data details.
Check your inputs
Solve common problems safely: Complete missing information and correct inconsistent or out-of-range vessel, position and calculation values.
Understand the calculation
Solve common problems safely: Keep the units, vessel particulars, time zone and selected method in view when reading a result or export.
When to stop and review
Solve common problems safely: Read each warning, correct its cause and recalculate before continuing.
Use it within its limits
Solve common problems safely: CaptainCalc supports decisions; approved vessel documents, official publications and the master's judgement remain authoritative.
Continue learning
CaptainCalc is decision support. It never replaces approved stability data, loading computers, ECDIS, official publications, procedures or professional judgment.
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