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Length-data coverage

Selected category: Missing / unusable

2,022 matching records / counted units

These are the same counted units and category assignments used in the summary snapshot, calculated 17 Sep 2026, 16:35 BST. Names are not automatically reconciled to unique vessels or people. Pagination shows 30 at a time; it does not limit the full result set.

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1,621 / 2,022 · vessel

SHAMROCK

Indexes
In both indexes
Type
Unrecorded / conflicting
Usable length (ft)
Not recorded / not usable for this calculation
Usable build year
Not recorded / not usable for this calculation

Counted source identifiers: vessel register 1837, 1848, 1853 · Orde 117

Vessel research record →
1,622 / 2,022 · vessel

SHANNON

Indexes
Vessel register only
Type
Sailing Barge
Usable length (ft)
Not recorded / not usable for this calculation
Usable build year
Not recorded / not usable for this calculation

Counted source identifiers: vessel register 1858

Vessel research record →
1,623 / 2,022 · vessel

SHARPSHOOTER J68

Indexes
Vessel register only
Type
Fleet Minesweeper
Usable length (ft)
Not recorded / not usable for this calculation
Usable build year
Not recorded / not usable for this calculation

Counted source identifiers: vessel register 1760

Vessel research record →
1,624 / 2,022 · vessel

SHAWFORD

Indexes
Vessel register only
Type
Barge
Usable length (ft)
Not recorded / not usable for this calculation
Usable build year
Not recorded / not usable for this calculation

Counted source identifiers: vessel register 1765

Vessel research record →
1,625 / 2,022 · vessel

SHEARWATER L39

Indexes
Vessel register only
Type
Corvette
Usable length (ft)
Not recorded / not usable for this calculation
Usable build year
Not recorded / not usable for this calculation

Counted source identifiers: vessel register 1816

Vessel research record →
1,626 / 2,022 · vessel

SHEEMICK

Indexes
Vessel register only
Type
D
Usable length (ft)
Not recorded / not usable for this calculation
Usable build year
Not recorded / not usable for this calculation

Counted source identifiers: vessel register 1873

Vessel research record →
1,627 / 2,022 · vessel

SHEILA

Indexes
Vessel register only
Type
Dinghy
Usable length (ft)
Not recorded / not usable for this calculation
Usable build year
Not recorded / not usable for this calculation

Counted source identifiers: vessel register 1863

Vessel research record →
1,628 / 2,022 · vessel

SHELDRAKE

Indexes
In both indexes
Type
Motor Yacht
Usable length (ft)
Not recorded / not usable for this calculation
Usable build year
Not recorded / not usable for this calculation

Counted source identifiers: vessel register 1770 · Orde 1051

Vessel research record →
1,629 / 2,022 · vessel

SHELDRAKE LO6

Indexes
Vessel register only
Type
Corvette
Usable length (ft)
Not recorded / not usable for this calculation
Usable build year
Not recorded / not usable for this calculation

Counted source identifiers: vessel register 1868

Vessel research record →
1,630 / 2,022 · vessel

SHEPPERTON FERRY

Indexes
Vessel register only
Type
Train Ferry
Usable length (ft)
Not recorded / not usable for this calculation
Usable build year
Not recorded / not usable for this calculation

Counted source identifiers: vessel register 1842

Vessel research record →
1,631 / 2,022 · vessel

SHERFIELD

Indexes
In both indexes
Type
MN Motor Barge
Usable length (ft)
Not recorded / not usable for this calculation
Usable build year
Not recorded / not usable for this calculation

Counted source identifiers: vessel register 1821 · Orde 401, 826

Vessel research record →
1,632 / 2,022 · vessel

SHERINGHAM

Indexes
Vessel register only
Type
Cargo Ship
Usable length (ft)
Not recorded / not usable for this calculation
Usable build year
Not recorded / not usable for this calculation

Counted source identifiers: vessel register 1775

Vessel research record →
1,633 / 2,022 · vessel

SHETLAND

Indexes
Vessel register only
Type
Dumb Barge
Usable length (ft)
Not recorded / not usable for this calculation
Usable build year
Not recorded / not usable for this calculation

Counted source identifiers: vessel register 1878

Vessel research record →
1,634 / 2,022 · vessel

SHIKARI D85

Indexes
Vessel register only
Type
Destroyer
Usable length (ft)
Not recorded / not usable for this calculation
Usable build year
Not recorded / not usable for this calculation

Counted source identifiers: vessel register 1834

Vessel research record →
1,635 / 2,022 · vessel

SHIP'S LIFEBOATS: BEAVERDALE, MODASA, MALDA, DURENDA, DUNBAR CASTLE, EDAM, FLANDERS, GEORGIC, HAWNBY, LOLWORTH, PARALES, ROSLIN CASTLE, UPWEY GRANGE

Indexes
Vessel register only
Type
D
Usable length (ft)
Not recorded / not usable for this calculation
Usable build year
Not recorded / not usable for this calculation

Counted source identifiers: vessel register 1826

Vessel research record →
1,636 / 2,022 · vessel

SHIPMATES

Indexes
Vessel register only
Type
Naval Drifter
Usable length (ft)
Not recorded / not usable for this calculation
Usable build year
Not recorded / not usable for this calculation

Counted source identifiers: vessel register 1847

Vessel research record →
1,637 / 2,022 · vessel

SHRIMP

Indexes
Vessel register only
Type
Skiff
Usable length (ft)
Not recorded / not usable for this calculation
Usable build year
Not recorded / not usable for this calculation

Counted source identifiers: vessel register 1883

Vessel research record →
1,638 / 2,022 · vessel

SHUNESTA

Indexes
Vessel register only
Type
Motor Boat
Usable length (ft)
Not recorded / not usable for this calculation
Usable build year
Not recorded / not usable for this calculation

Counted source identifiers: vessel register 1852

Vessel research record →
1,639 / 2,022 · vessel

SIBELLE

Indexes
Vessel register only
Type
A
Usable length (ft)
Not recorded / not usable for this calculation
Usable build year
Not recorded / not usable for this calculation

Counted source identifiers: vessel register 1839

Vessel research record →
1,640 / 2,022 · vessel

SIDWELL

Indexes
Vessel register only
Type
Barge
Usable length (ft)
Not recorded / not usable for this calculation
Usable build year
Not recorded / not usable for this calculation

Counted source identifiers: vessel register 1888

Vessel research record →
1,641 / 2,022 · vessel

SILICIA

Indexes
Vessel register only
Type
D
Usable length (ft)
Not recorded / not usable for this calculation
Usable build year
Not recorded / not usable for this calculation

Counted source identifiers: vessel register 1857

Vessel research record →
1,642 / 2,022 · vessel

SILVER CLOUD

Indexes
Vessel register only
Type
Ipswich Fishing Vessel
Usable length (ft)
Not recorded / not usable for this calculation
Usable build year
Not recorded / not usable for this calculation

Counted source identifiers: vessel register 1844

Vessel research record →
1,643 / 2,022 · vessel

SILVER COAST

Indexes
Vessel register only
Type
Coaster
Usable length (ft)
Not recorded / not usable for this calculation
Usable build year
Not recorded / not usable for this calculation

Counted source identifiers: vessel register 1780

Vessel research record →
1,644 / 2,022 · vessel

SILVER DAWN

Indexes
In both indexes
Type
Naval Drifter
Usable length (ft)
Not recorded / not usable for this calculation
Usable build year
Not recorded / not usable for this calculation

Counted source identifiers: vessel register 1831 · Orde 394, 711

Vessel research record →
1,645 / 2,022 · vessel

SILVER FOAM

Indexes
Vessel register only
Type
Southend Launch
Usable length (ft)
Not recorded / not usable for this calculation
Usable build year
Not recorded / not usable for this calculation

Counted source identifiers: vessel register 1849

Vessel research record →
1,646 / 2,022 · vessel

SILVER MOON

Indexes
In both indexes
Type
Motor Boat
Usable length (ft)
Not recorded / not usable for this calculation
Usable build year
Not recorded / not usable for this calculation

Counted source identifiers: vessel register 1862 · Orde 1566

Vessel research record →
1,647 / 2,022 · vessel

SILVER PRINCE

Indexes
Vessel register only
Type
Lowestoft Drifter
Usable length (ft)
Not recorded / not usable for this calculation
Usable build year
Not recorded / not usable for this calculation

Counted source identifiers: vessel register 1785

Vessel research record →
1,648 / 2,022 · vessel

SILVER SPRAY

Indexes
Vessel register only
Type
Unrecorded / conflicting
Usable length (ft)
Not recorded / not usable for this calculation
Usable build year
Not recorded / not usable for this calculation

Counted source identifiers: vessel register 1790, 1872

Vessel research record →
1,649 / 2,022 · vessel

SILVER SPRAY NN120

Indexes
Vessel register only
Type
Newhaven Fishing Vessel
Usable length (ft)
Not recorded / not usable for this calculation
Usable build year
Not recorded / not usable for this calculation

Counted source identifiers: vessel register 1854

Vessel research record →
1,650 / 2,022 · vessel

SILVER VANITY

Indexes
Vessel register only
Type
Motor Yacht
Usable length (ft)
Not recorded / not usable for this calculation
Usable build year
Not recorded / not usable for this calculation

Counted source identifiers: vessel register 1859

Vessel research record →