Public Vessel Record
BOKA TOPAZ
ex REVER TOPAZ · BIBBY TOPAZCall sign LARH7
- Type
- Offshore
- Lifecycle
- Active
- Flag
- Norway
- Built
- 2007
- Class
- DNV
View the original spec sheet
Owner-published PDF source · View all 2 PDFs
BOKA TOPAZ (IMO 9382815) is an Offshore built 2007, Norway-flagged, DNV-classed.
15,449 hp
BHP
DP Class 2
DP class
5,337 t
Deadweight (DWT)
106.6 m
Length o.a.
How verification works17 of 19 specs from a primary source or corroborated beyond the reference databases
Primary sourceIndependent sourceReference databaseDerivedCorroborated = two or more sources agreeHow we rank sources
Class / registryOwner doc.Cross-sourcePublished ref.Single ref.No source
01 — Identification
Class notation
dnv + 1a1 sf, comf-v(3)c(3), heldk-sh, eo dynpos-autr, clean, dsv-sat, dsv-surface[6]
Primary sourcecorroboratedReport02 — Ownership & build
03 — Hull & capacity
04 — Propulsion & performance
05 — Capability
06 — Deck & accommodation
07 — Class-notation capabilities
Diving Support
Saturation diving
Class notation
Dynamic Positioning
DP Class 2
Class notation
Normalized from the vessel's class notation across societies — a DNV DYNPOS-AUTR, ABS DPS-2 and LR DP(AA) all read as DP Class 2. Provenance follows the class-notation source.
Sources cited (9)
Data updated
- 1Owner spec sheet (PDF)https://boskalis.com/media/ogqck3oe/boka-topaz-022026.pdf ↗
- 2Owner spec sheet (PDF)https://boskalis.com/media/z3ypfgen/boka_topaz.pdf ↗
- 3Owner / operator company websitehttps://volstad.com/fleets/boka-topaz/ ↗
- 4IACS — Vessels in Class public registerhttps://iacs.org.uk/membership/vessels-in-class ↗
- 5Norwegian Ship Registers NOR/NIS — Sjøfartsdirektoratethttps://skipssok.sdir.no ↗
- 6Commercial reference databases (not individually named)grouped category; individual databases are not publicly named
- 7
- 8Refvik (published)https://www.refvik.info/OSV/Offshore-Design-History-book-June-2025.pdf ↗
- 9
Source labels show provenance, not endorsement or certification. Reference only; verify before use. See About this experiment.