What does SOB stand for?
| Full form | Souls on Board |
|---|---|
| Category | Transport & aviation |
| Type | Initialism |
The initialism SOB stands for Souls on Board in the cited aviation and maritime records. It is a people-count expression. The exact record still needs to say which people, grouping and point in time its count covers.
A people count needs a scope as well as an expansion. An NTSB recommendation from 17 July 1995 expands SOB in a historical dispatch account; a Dstl article from 10 August 2021 uses Souls on Board in a Royal Navy personnel-accounting trial. Those records establish documented contexts, not a universal current reporting procedure. For a reader comparing numbers, distinguish a total, a passenger subtotal and separately listed crew or other people. Do not add a passenger count to a total that already includes those passengers, or combine snapshots taken at different times without a reconciliation. The calculator uses an explicitly declared model: passengers, crew and other people are non-overlapping groups, cover everyone in the supplied record and refer to the same instant. Under that assumption, fictional counts of 12 passengers, 3 crew and 1 other person sum to 16 people. If a group is missing or people appear twice, that arithmetic does not establish the actual total. Enter an explicit zero only when the supplied group really has zero people. The tool sums your declared groups; it does not identify who is aboard or replace an operational muster, manifest or dispatch process.
Meaning in context
- Souls on Board
- The documented expression in the cited transport records; retain the particular record’s count scope.
- Total and subtotal
- A passenger-only number and a complete people total are different quantities; check which groups are included.
Practical examples
Add disjoint groups, not a total twice
- Before
Invented complete snapshot: 12 passengers, 3 crew and 1 other person, with no overlap. Draft: There are only 12 people aboard.
- After
Under the fictional grouping, the people total is 12 + 3 + 1 = 16.
The passenger figure is a subtotal in this explicitly complete, non-overlapping example.
Keep snapshots separate
- Before
Invented records: 16 people at 10:00 and 18 people at 11:00; no movement reconciliation supplied. Draft: Exactly 34 people are aboard at one moment.
- After
The fictional records supply two different snapshots, not one established simultaneous total.
Adding counts from different times can count the same people more than once. No common-snapshot result is supplied here.
Original illustrative examples, not quotations or reports of actual events.
Add a declared people snapshot
Do these SOB figures describe one complete people count, or overlapping subtotals and different snapshots?
See all guidance
Read a total
Identify which people the record includes and when it applies.
The fictional total includes all three declared groups at 10:00.
Read a subtotal
Retain the group label instead of renaming it as everyone.
Twelve is the supplied passenger subtotal.
Compare snapshots
Keep timestamps separate until a reconciliation is supplied.
The 10:00 and 11:00 records are different snapshots.
Keep the time, included groups and total/subtotal distinction with the number before adding or comparing people counts.
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By AcronymIndex Editorial Team · Editorial policy