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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 18 Sep 2026, 07:18 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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841 / 2,022 · vessel

IOT

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 932

Vessel research record →
842 / 2,022 · vessel

IOTA

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 930

Vessel research record →
843 / 2,022 · vessel

IOTE

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 941 · Orde 38

Vessel research record →
844 / 2,022 · vessel

IRENE-ROBERT

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 909

Vessel research record →
845 / 2,022 · vessel

IRENIC

Indexes
Vessel register only
Type
Brixham 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 937

Vessel research record →
846 / 2,022 · vessel

IRIS

Indexes
Vessel register only
Type
Motor 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 942

Vessel research record →
847 / 2,022 · vessel

IRISHMAN

Indexes
Vessel register only
Type
TUG
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 946

Vessel research record →
848 / 2,022 · vessel

IRMA

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 883

Vessel research record →
849 / 2,022 · vessel

IRMA ALICE

Indexes
Vessel register only
Type
Belgian Trawler
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 947

Vessel research record →
850 / 2,022 · vessel

IRMA Z71

Indexes
Vessel register only
Type
Belgian Trawler
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 888

Vessel research record →
851 / 2,022 · vessel

IRMA-GERMAINE Z3

Indexes
Vessel register only
Type
Belgian Trawler
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 935

Vessel research record →
852 / 2,022 · vessel

IRMAMARIE

Indexes
Vessel register only
Type
French 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 952

Vessel research record →
853 / 2,022 · vessel

ISA

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 957

Vessel research record →
854 / 2,022 · vessel

ISLANDQUEEN

Indexes
Vessel register only
Type
Poole 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 893

Vessel research record →
855 / 2,022 · vessel

ISLE OF ALDERNEY

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 951

Vessel research record →
856 / 2,022 · vessel

ISLE OF SARK

Indexes
Vessel register only
Type
Passenger 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 903

Vessel research record →
857 / 2,022 · vessel

ISLEOFGUERNSEY

Indexes
Vessel register only
Type
Hospital Carrier
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 898

Vessel research record →
858 / 2,022 · vessel

ISLEOFTHANET

Indexes
Vessel register only
Type
Hospital Carrier
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 956

Vessel research record →
859 / 2,022 · vessel

ISRAEL BRITAIN

Indexes
Vessel register only
Type
Penzance 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 908

Vessel research record →
860 / 2,022 · vessel

IVANHOE

Indexes
In both indexes
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 967 · Orde 270, 299, 333, 407, 630, 712, 719, 752, 950, 1132, 1245, 1402

Vessel research record →
861 / 2,022 · vessel

IVANHOE I16

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 962

Vessel research record →
862 / 2,022 · vessel

IVERFORTH

Indexes
Vessel register only
Type
Minesweeping Trawler
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 961

Vessel research record →
863 / 2,022 · vessel

JABA

Indexes
Vessel register only
Type
HMS Dutch 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 914

Vessel research record →
864 / 2,022 · vessel

JACINTA

Indexes
Vessel register only
Type
Naval Trawler
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 966

Vessel research record →
865 / 2,022 · vessel

JACKAL F22/G22

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 913

Vessel research record →
866 / 2,022 · vessel

JACKETA

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 971 · Orde 1677

Vessel research record →
867 / 2,022 · vessel

JACKEVE

Indexes
In both indexes
Type
Naval Minesweeping 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 918 · Orde 1359

Vessel research record →
868 / 2,022 · vessel

JACOBSEN

Indexes
Vessel register only
Type
French 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 972

Vessel research record →
869 / 2,022 · vessel

JACOMINA

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 923

Vessel research record →
870 / 2,022 · vessel

JACQUELINE

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 928

Vessel research record →