Public Vessel Record
THOR II
ex OLYMPIC HERCULESCall sign MOJE3
- Type
- AHTS
- Lifecycle
- Active
- Flag
- Isle of Man
- Built
- 2002
- Class
- DNV
THOR II (IMO 9235672) is an AHTS built 2002, Isle of Man-flagged, DNV-classed.
250 t
Bollard pull (BP)
23,500 hp
BHP
DP Class 2
DP class
3,750 t
Deadweight (DWT)
How verification works5 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, tug, supply vessel, sf, oilrec, e0, dynpos- autr, ice c, dk(+), hl(2.5)[3]
Reference databasecorroboratedReport02 — Ownership & build
03 — Hull & capacity
04 — Propulsion & performance
05 — Capability
06 — Deck & accommodation
07 — Class-notation capabilities
Dynamic Positioning
DP Class 2
Class notation
Ice Class
DNV ICE-C
Class notation
Oil Recovery
Recovery-capable
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 (6)
Data updated
- 1Owner / operator company websitehttps://ulstein.com/references/olympic-hercules ↗
- 2IACS — Vessels in Class public registerhttps://iacs.org.uk/membership/vessels-in-class ↗
- 3Commercial reference databases (not individually named)grouped category; individual databases are not publicly named
- 4
- 5Refvik (published)https://www.refvik.info/OSV/Offshore-Design-History-book-June-2025.pdf ↗
- 6
Source labels show provenance, not endorsement or certification. Reference only; verify before use. See About this experiment.