Design
MT6022XL
Boskalis ↗Published Apr 2020 · Reviewed 17 Oct 2026
VESSEL PROFILE · IMO 9441221
BOKA Atlantis
Published capabilities, ownership records and history. Evidence stays attached to every fact.
Open interactive profile 10 sources · 30 evidence records
Published specifications
14 particularsSource 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.
- Published operating roleCatalogue source
- Boskalis
- Length overallPublished source
- 115.4 m
- Hyperbaric lifeboats (SPHL)Published source
- 2
- Saturation system manufacturerPublished source
- Drass Galeazzi
- Main cranePublished source
- TTS 140 t AHC, two-fall, 5.5–7 m radius; 650 m hook depth
Published catalogue figure. Open the profile for its evidence and qualifications.
Catalogue source ↗Publication undated · Reviewed 17 Oct 2026
Length overall; dated equipment sheet.
Boskalis ↗Published Apr 2020 · Reviewed 18 Oct 2026
Two SPHLs, each for 18 divers; configuration at publication.
Boskalis ↗Published Apr 2020 · Reviewed 18 Oct 2026
Boskalis ↗Published Apr 2020 · Reviewed 17 Oct 2026
Boskalis ↗Published Apr 2020 · Reviewed 17 Oct 2026
Specification research notes
Existing sourced DP, SAT depth and operator are retained. Added normalized dimensions and explicit SPHL count from the dated Boskalis sheet; no live status or certificate validity implied.
Supporting capability records
20 recordsPublished design and equipment particulars are evidence of the source configuration, not a current certificate or availability guarantee.
Dimensions
115.4 m length × 22.2 m beam
Boskalis ↗Published Apr 2020 · Reviewed 17 Oct 2026
Deadweight
5,662 t at zero trim
Boskalis ↗Published Apr 2020 · Reviewed 17 Oct 2026
Maximum draft
7.035 m
Boskalis ↗Published Apr 2020 · Reviewed 17 Oct 2026
Positioning
DP2; GE Converteam ADP-21
Boskalis ↗Published Apr 2020 · Reviewed 17 Oct 2026
Saturation system
Drass Galeazzi; 18 divers; 300 msw
Boskalis ↗Published Apr 2020 · Reviewed 17 Oct 2026
Diving bells
Two three-person bells, 6 m³ each
Boskalis ↗Published Apr 2020 · Reviewed 17 Oct 2026
Hyperbaric evacuation
Two 18-person lifeboats
Boskalis ↗Published Apr 2020 · Reviewed 17 Oct 2026
Surface diving
Two DDCs; two two-person LARS
Boskalis ↗Published Apr 2020 · Reviewed 17 Oct 2026
Diving gas
18,000 m³ storage; gas reclaim
Boskalis ↗Published Apr 2020 · Reviewed 17 Oct 2026
Main deck
1,120 m²; 10 t/m²; 3,300 t payload
Boskalis ↗Published Apr 2020 · Reviewed 17 Oct 2026
Main crane
TTS 140 t AHC, two-fall, 5.5–7 m radius; 650 m hook depth
Boskalis ↗Published Apr 2020 · Reviewed 17 Oct 2026
Single-fall crane mode
70 t at 5.5–10 m radius; 2000 m hook depth
Boskalis ↗Published Apr 2020 · Reviewed 17 Oct 2026
Auxiliary crane
40 t at 5.5–13.5 m radius; 150 m hook depth
Boskalis ↗Published Apr 2020 · Reviewed 17 Oct 2026
ROV
Seaeye Cougar, light work class
Boskalis ↗Published Apr 2020 · Reviewed 17 Oct 2026
Accommodation
120 persons
Boskalis ↗Published Apr 2020 · Reviewed 17 Oct 2026
Moonpools
Work: 5 × 5 m; bells: two 3.9 × 3.9 m
Boskalis ↗Published Apr 2020 · Reviewed 17 Oct 2026
Helideck
Sikorsky S92; 12 t maximum take-off weight
Boskalis ↗Published Apr 2020 · Reviewed 17 Oct 2026
Energy storage retrofit
Boskalis confirms an energy storage system was fitted.
Undated case page; Atlantis capacity and installation date are not specified. Do not apply Da Vinci capacity to this vessel.
Boskalis ↗Publication undated · Reviewed 17 Oct 2026
OEM confirms saturation-system supply
DRASS names Boka Atlantis among vessels outfitted by Korean shipyards with its deep-diving saturation systems.
Retrospective supply reference published in 2024; the system installation date and current maintenance condition are not specified.
DRASS Group ↗Published 18 Jun 2024 · Reviewed 18 Oct 2026
Ownership & identity
4 recordsRegistered 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
- 9441221
- MMSI
- 538003646
Identity reviewed in public vessel listings. Public position snapshots are historical evidence, not a live feed.
myshiptracking.com ↗Publication undated · Reviewed 17 Oct 2026
Vessel identifier review
BOKA Atlantis · IMO 9441221 · MMSI 538003646
Identity reviewed in public vessel listings. Public position snapshots are historical evidence, not a live feed.
marineradar.com ↗Publication undated · Reviewed 17 Oct 2026
Builder / construction
Hanjin Heavy Industries, Pusan, South Korea; built 2011.
Boskalis ↗Applies to 2011 · Published Apr 2020 · Reviewed 17 Oct 2026
Published flag
Marshall Islands
Boskalis ↗Published Apr 2020 · Reviewed 17 Oct 2026
Fleet association
Boskalis DSV fleet; vessels may be owned or chartered.
Undated fleet page; this listing alone does not establish the registered owner.
Boskalis ↗Publication undated · Reviewed 17 Oct 2026
Research coverage & limitations (1)
Current registered owner and ISM manager were not established from the reviewed operator publications.
Checked 17 Oct 2026
Inspection & class records
2 recordsThese 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.
Published class notation
DNV: 1A1, DSV-SAT, DSV-SURFACE, DYNPOS-AUTR, HELDK-SH
Operator specification; not a current class-status or inspection certificate.
Boskalis ↗Published Apr 2020 · Reviewed 17 Oct 2026
Published ISM / ISPS certification
DNV/GL, on behalf of Marshall Islands.
Statement in the April 2020 sheet; current validity has not been checked.
Boskalis ↗Published Apr 2020 · Reviewed 17 Oct 2026
Research coverage & limitations (2)
No exact IMO match was returned by the USCG PSIX vessel search. This is a limited US dataset, not a worldwide inspection clearance.
Checked 17 Oct 2026
No current survey, statutory certificate or port-state inspection record was verified in these publications. The published class notation is historical evidence, not confirmation of current validity.
Checked 17 Oct 2026
Project history
4 recordsVessel-specific events and contextual project records retain their dates and limitations. A regional contract award alone does not establish vessel employment.
Tyra redevelopment — announced assignment
Named for most offshore work on Total E&P Denmark's subsea installation phase II.
Contract-award announcement describes intended deployment, not proof of completed work.
Boskalis ↗Applies to 4 Oct 2018 · Published 4 Oct 2018 · Reviewed 17 Oct 2026
INEOS E&P campaign
Provided saturation diving and ROV support for 20 IRM scopes in Denmark.
Undated project page explicitly identifies the campaign year and vessel.
Boskalis ↗Applies to 2018 · Publication undated · Reviewed 17 Oct 2026
PLC maintenance
DRASS lists 2018 PLC maintenance jointly for Da Vinci and Atlantis.
Shared entry; vessel-specific dates unavailable.
DRASS Group ↗Applies to 2018 · Published 19 Jun 2019 · Reviewed 18 Oct 2026
Danish North Sea construction
Field disconnection/reconnection, tie-in spools, SSIV and connector installation.
Undated project highlight; client and execution dates are not disclosed.
Boskalis ↗Publication undated · Reviewed 17 Oct 2026