Wilchief 1

Published specifications

11 particulars

Source dates describe the evidence, not current certification or operational availability. Operating roles may be historical. Reference-only screenshot figures and ratings are not used in this summary.

Build yearPublished source: 1984
Length overallPublished source: 78.3 m
BeamPublished source: 18 m
Dynamic positioningPublished source: DP2
Saturation depthPublished source: 250 m
Saturation diversPublished source: 15
Bell configurationPublished source: Single bell
Bell occupancyPublished source: 3 people
Main cranePublished source: 70 t at 12 m tested capacity
Deck areaPublished source: 550 m²
DraftPublished source: 5.562 m

Not sourced in this summary: Published operating role, Hyperbaric lifeboats (SPHL), Saturation system manufacturer.

Specification research notes

Historical technical sheet updated 28 December 2016 was checked. It supports 250 msw and tested 70 t crane capacity; a potential 140 t upgrade is not an installed rating. A self-driven hyperbaric lifeboat is described without an explicit count. Fresh Dolphin company-page review did not identify Wilchief 1’s current operator. No current operator or complete SAT-system manufacturer was established.

Supporting capability records

3 records

Published design and equipment particulars are evidence of the source configuration, not a current certificate or availability guarantee.

Reported build year

1984

Published vessel particulars; publication date is not stated. These figures do not establish current class or equipment certification.

vesselfinder.com ↗Publication undated · Reviewed 17 Oct 2026

Reported length

78.3 m

Published vessel particulars; publication date is not stated. These figures do not establish current class or equipment certification.

vesselfinder.com ↗Publication undated · Reviewed 17 Oct 2026

Reported beam

18.01 m

Published vessel particulars; publication date is not stated. These figures do not establish current class or equipment certification.

vesselfinder.com ↗Publication undated · Reviewed 17 Oct 2026

Research coverage & limitations (1)

Detailed diving, lifting and ROV equipment specifications are not yet verified for this vessel. Any listed particulars retain the scope of their cited source.

Wilchief 1 identity reference ↗

Checked 17 Oct 2026

Ownership & identity

2 records

Registered owner, group owner, operator, manager and P&I entered owner are different roles. Each record retains the role and date stated by its source.

Vessel identity

IMO number: 8304799
MMSI: 419001201

Names in the reviewed record: DSV Alliance · Red7 Alliance · Alliance

Very old AIS snapshot from 7 March 2024; current precise position is unverified. Mumbai Port Authority lists Wilchief 1 at berth 11ID on 22 June 2026, but a berth name is not an AIS coordinate and must not overwrite this observation. VesselFinder corroborates current identity and historical names.

vesselfinder.com ↗Publication undated · Reviewed 17 Oct 2026

AIS identity cross-check

Wilchief 1 — IMO 8304799; MMSI 419001201.

Public AIS-provider identity listing. Review date is not an AIS observation date, ownership confirmation or current certification.

VesselFinder ↗Publication undated · Reviewed 17 Oct 2026

Reported flag

India

Published vessel particulars; publication date is not stated. These figures do not establish current class or equipment certification.

vesselfinder.com ↗Publication undated · Reviewed 17 Oct 2026

Research coverage & limitations (1)

The reviewed identity listing does not establish current registered ownership, beneficial ownership, charterer or operator. See any separately cited role-specific evidence.

Wilchief 1 identity reference ↗

Checked 17 Oct 2026

Inspection & class records

0 records

These are historical records within each source’s coverage. Missing records are not a clean bill of health, and class descriptions do not prove current certification.

No verified records are available in this section of the collection.

Research coverage & limitations (1)

A complete inspection history has not been verified. No inference of a clean inspection record or current certification should be made from missing records.

Wilchief 1 identity reference ↗

Checked 17 Oct 2026

Project history

1 record

Vessel-specific events and contextual project records retain their dates and limitations. A regional contract award alone does not establish vessel employment.

Published port presence

Mumbai Port Authority listed Wilchief 1 at Indira Dock berth 11ID in its daily vessel list.

A dated port listing; no precise AIS coordinates and no inference that the vessel remains there.

Mumbai Port Authority ↗Applies to 22 Jun 2026 · Published 22 Jun 2026 · Reviewed 17 Oct 2026

Research coverage & limitations (1)

A complete vessel-specific project history has not been verified. Any dated events below are limited to their cited evidence.

Wilchief 1 identity reference ↗

Checked 17 Oct 2026

Published specifications

Supporting capability records

Reported build year

Reported length

Reported beam

Ownership & identity

Vessel identity

AIS identity cross-check

Reported flag

Inspection & class records

Project history

Published port presence

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