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MAYFLOWER 400

Research Vessel · Research Ship class · Built 2020s · USCG Northeast District (CGD-NE)

MAYFLOWER 400 is a 2020 research vessel. The Coast Guard has recorded 1 inspection in 2020.

Records in 2020. Most recent: inspection, 30 September 2020.

Built: 2020
Last inspected: 30 September 2020
Documentation: Expired · documentation file of 10 August 2026
Inspections: 1
Deficiencies: 0 recorded · 0 without a recorded resolution
Controls: None recorded without a removal date

Identity

1313622

—

WDM3729

1642420

Flag

UNITED KINGDOM

Maury page id

psix-1642420

This record may be incomplete: the most recent inspection recorded for this vessel was 6 years ago. Maury shows what the Coast Guard recorded, not whether the vessel has been inspected since, is still in service, or what condition it is in. Coast Guard record current through 23 August 2026, retrieved 5 September 2026 from PSIX. Every field on this page was recorded by the Coast Guard. Records for the Research Ship class in Maury's sources begin in 2016.

Inspections, by type

Recorded inspections1

…physical examinations1

Years with a record 1 calendar year (2020)

This is a sparse record, and that is what the archive holds. 1 inspection recorded in 2020, and no deficiencies were written. This vessel does not appear elsewhere in the 2016–2026 record for its class. An absent record is not evidence of compliance, and it is not evidence of a problem — it is the absence of a record.

Every line above is a count of records the US Coast Guard wrote, or a date it recorded. The counts in the strip above are the same counts; this table splits the inspections by the kind of activity recorded. A blank resolution means none was recorded in this data; it does not establish that a deficiency is outstanding. Years with a record are calendar years in which a record exists, not years in service. What Maury does not do.

Documentation record

Registered dimensions (L × B × D)Not recorded

Registered tonnagegross 11 / net 11

ITC dimensions (L × B × D)Not recorded

ITC tonnageNot recorded

BuilderPROMARE INC · PLYMOUTH, DEVON, UNITED KINGDOM · built 2020

Hull materialAluminum

PropulsionDiesel Electric

Hull shapeShip

Hull configurationTri Hull

Hailing portPLYMOUTH, MA

Trade endorsementsRecreational, Registry

DocumentationExpired · issued 13 April 2021

Service, as the file records itResearch Vessel

Hull formpowered (Maury's inference from propulsion, hull shape, material and length, rule hf-1; not a recorded fact)

Tonnage as PSIX records it11 - Simplified, Gross Ton
11 - Simplified, Net Ton
5 - Displacement, Ton

Every line above is a field of the National Vessel Documentation Center's file as served by NOAA Fisheries, dated 10 August 2026, matched to this hull on its Official Number. Registered and ITC measurements are two systems and are never combined. One snapshot is held so far; documentation history begins with the next.

Vessel history report

A report is not offered for this hull. Its Coast Guard record spans fewer than two calendar years. That is a statement about the record, not about the vessel. What a sparse-record report looks like.

Inspection history · 1

30 September 2020 In-Service Inspection

Physical examination · USCG Northeast District (dp) · USCG Northeast District (CGD-NE) · Activity 7069330

Deficiency record · 0

No deficiencies recorded against this vessel. This means none were written in the records covered — it is not a statement about the vessel's condition. What a recorded resolution is.

Ownership record

The Coast Guard's documentation record for this hull -- the Abstract of Title, with its owners and liens as filed -- is not in PSIX. Ask, and Maury buys it from the National Vessel Documentation Center, files it here with its date, and every reader of this page gets it.