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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, 05:26 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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781 / 2,022 · vessel

HAVELOCK H88

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 834

Vessel research record →
782 / 2,022 · vessel

HAWFINCH NN41

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 886

Vessel research record →
783 / 2,022 · vessel

HAZARD

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 839

Vessel research record →
784 / 2,022 · vessel

HEADMAN

Indexes
Vessel register only
Type
Hull 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 844

Vessel research record →
785 / 2,022 · vessel

HEART OF GOLD

Indexes
Vessel register only
Type
Ramsgate 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 849

Vessel research record →
786 / 2,022 · vessel

HEATHER BELL

Indexes
Vessel register only
Type
Lynn 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 813

Vessel research record →
787 / 2,022 · vessel

HEBE

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 823

Vessel research record →
788 / 2,022 · vessel

HEBE II

Indexes
In both indexes
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 854 · Orde 1414

Vessel research record →
789 / 2,022 · vessel

HEBE J24

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 818

Vessel research record →
790 / 2,022 · vessel

HELPMATE

Indexes
Vessel register only
Type
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 828

Vessel research record →
791 / 2,022 · vessel

HENDRICK CONSCIENCE O327

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 891

Vessel research record →
792 / 2,022 · vessel

HENDRIKA

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 875

Vessel research record →
793 / 2,022 · vessel

HENRI LOUIS AD397

Indexes
Vessel register only
Type
French 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 896

Vessel research record →
794 / 2,022 · vessel

HENRI MORY

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 901

Vessel research record →
795 / 2,022 · vessel

HENRI YVONNE

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 877

Vessel research record →
796 / 2,022 · vessel

HENRI Z40

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 872

Vessel research record →
797 / 2,022 · vessel

HENRIETTE

Indexes
In both indexes
Type
French 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 880 · Orde 510

Vessel research record →
798 / 2,022 · vessel

HENRY HARRIS RX2

Indexes
Vessel register only
Type
Rye 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 906

Vessel research record →
799 / 2,022 · vessel

HENRY JAMES

Indexes
Vessel register only
Type
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 859

Vessel research record →
800 / 2,022 · vessel

HERON

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 833, 885

Vessel research record →
801 / 2,022 · vessel

HETTIE MAY

Indexes
Vessel register only
Type
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 864

Vessel research record →
802 / 2,022 · vessel

HIBERNIA

Indexes
In both indexes
Type
Thames 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 869 · Orde 1731

Vessel research record →
803 / 2,022 · vessel

HIBERNIA NN47

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 882

Vessel research record →
804 / 2,022 · vessel

HIGHLANDER H44

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 874

Vessel research record →
805 / 2,022 · vessel

HILDA

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 879, 887 · Orde 105, 415, 650, 684, 1479

Vessel research record →
806 / 2,022 · vessel

HIRD

Indexes
In both indexes
Type
Norwegian 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 884 · Orde 573, 687, 962, 983, 1429, 1442, 1553

Vessel research record →
807 / 2,022 · vessel

HIS MAJESTY

Indexes
Vessel register only
Type
Thames Passenger 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 890

Vessel research record →
808 / 2,022 · vessel

HMS EXCELLENT’S

Indexes
Vessel register only
Type
Anti-Aircraft 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 675

Vessel research record →
809 / 2,022 · vessel

HMS NELSON’S MOTOR BOAT

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 1453

Vessel research record →
810 / 2,022 · vessel

HMS NELSON’S PICKET BOAT

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 1458

Vessel research record →