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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, 20:01 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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1,501 / 2,022 · vessel

ROB ROY

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 1688

Vessel research record →
1,502 / 2,022 · vessel

ROBERT CLIFF

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 1640

Vessel research record →
1,503 / 2,022 · vessel

ROBERT L HOLT

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 1666

Vessel research record →
1,504 / 2,022 · vessel

ROBERTA

Indexes
Vessel register only
Type
lost
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 1693

Vessel research record →
1,505 / 2,022 · vessel

ROBERTS

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 1698

Vessel research record →
1,506 / 2,022 · vessel

ROBINA TENNANT INS21

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 1703

Vessel research record →
1,507 / 2,022 · vessel

ROBUR III

Indexes
Vessel register only
Type
Polish 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 1645

Vessel research record →
1,508 / 2,022 · vessel

ROCINANTE

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 1671

Vessel research record →
1,509 / 2,022 · vessel

ROCKALL O323

Indexes
Vessel register only
Type
Belgian 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 1702

Vessel research record →
1,510 / 2,022 · vessel

RODD

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 1689

Vessel research record →
1,511 / 2,022 · vessel

ROEBUCK

Indexes
In both indexes
Type
MN 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 1707 · Orde 875, 928

Vessel research record →
1,512 / 2,022 · vessel

ROMAN

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 1684

Vessel research record →
1,513 / 2,022 · vessel

ROSA MARY

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 1676

Vessel research record →
1,514 / 2,022 · vessel

ROSABELLE

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 1650

Vessel research record →
1,515 / 2,022 · vessel

ROSALIE

Indexes
Vessel register only
Type
Rowboat
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 1694

Vessel research record →
1,516 / 2,022 · vessel

ROSE

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 1708

Vessel research record →
1,517 / 2,022 · vessel

ROSE EFFEUILLEE C2716

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 1660

Vessel research record →
1,518 / 2,022 · vessel

ROSE LN19

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 1655

Vessel research record →
1,519 / 2,022 · vessel

ROSE LN76

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 1712

Vessel research record →
1,520 / 2,022 · vessel

ROSE MARIE

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 1699, 1717

Vessel research record →
1,521 / 2,022 · vessel

ROSELYNE

Indexes
Vessel register only
Type
MN 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 1704

Vessel research record →
1,522 / 2,022 · vessel

ROSEMARY

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 1709, 1722

Vessel research record →
1,523 / 2,022 · vessel

ROSS J45

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 1665

Vessel research record →
1,524 / 2,022 · vessel

ROSURA

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 1727

Vessel research record →
1,525 / 2,022 · vessel

ROUEN

Indexes
Vessel register only
Type
French 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 1713

Vessel research record →
1,526 / 2,022 · vessel

ROWAN

Indexes
Vessel register only
Type
Fishing Smack
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 1718

Vessel research record →
1,527 / 2,022 · vessel

ROYAL DAFFODIL

Indexes
In both indexes
Type
Troopship
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 1686 · Orde 375, 455, 562, 761, 947, 1288

Vessel research record →
1,528 / 2,022 · vessel

ROYAL EAGLE

Indexes
In both indexes
Type
Anti-Aircraft Paddle Steamer
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 1723 · Orde 323, 354, 508, 513, 1213, 1232, 1237, 1311

Vessel research record →
1,529 / 2,022 · vessel

ROYAL LADY

Indexes
Vessel register only
Type
Skegness 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 1714

Vessel research record →
1,530 / 2,022 · vessel

ROYAL ROASE SM265

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 1732

Vessel research record →