This is a sparse record, and that is what the archive holds. 1 inspection recorded in 2025, and no deficiencies were written. This vessel does not appear elsewhere in the 1980–2026 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.

The 1 inspections in the strip above, split by the kind of activity the US Coast Guard recorded. Years with a record are calendar years in which a record exists, not years in service. What Maury does not do.

Coast Guard record current through 13 September 2026, retrieved 18 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 1980.

Documentation record

Registered dimensions (L × B × D)39.3 ft × 22.0 ft × 10.5 ft

Registered tonnagegross 28 / net 25

ITC dimensions (L × B × D)Not recorded

ITC tonnageNot recorded

BuilderROBERTSON & CAINE (PTY) LTD · CAPE TOWN, SOUTH AFRICA · built 2019

Hull materialFRP (Fiberglass)

PropulsionNot recorded

Hull shapeSail (Distinct Keel)

Hull configurationTwin Hull

Hailing portSANTA CRUZ, CA

Trade endorsementsRegistry

DocumentationValid · issued 9 February 2026 · expires 28 February 2027

Service, as the file records itResearch Vessel

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

Tonnage as PSIX records it28 - Simplified, Gross Ton
25 - Simplified, Net Ton

Every line above is a field of the National Vessel Documentation Center's file as served by NOAA Fisheries, dated 10 September 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.

Radio station licence

No FCC ship-station licence is recorded against this Official Number in the file of 6 September 2026. That is a fact about the licence file, not about the radio.

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. Reports.

Inspection history · 1

17 April 2025 Type not recorded

No type recorded · USCGC RIDLEY (WPB 87328) · USCG Southeast District (CGD-SE) · Activity 8114199

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.