Public Vessel Record
SUBSEA RESPONDER IV
ex SURF CHALLENGER · DMT EMERALDCall sign V7A5057
- Type
- MPSV
- Lifecycle
- Active
- Flag
- Marshall Islands
- Built
- 2006
- Class
- ABS
View the original spec sheet
Owner-published PDF source · View all 2 PDFs
SUBSEA RESPONDER IV (IMO 9400693) is a MPSV built 2006, Marshall Islands-flagged, ABS-classed.
9,924 hp
BHP
DP Class 2
DP class
3,175.147 t
Deadweight (DWT)
89 m
Length o.a.
How verification works16 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
02 — Ownership & build
03 — Hull & capacity
04 — Propulsion & performance
05 — Capability
06 — Deck & accommodation
07 — Class-notation capabilities
Dynamic Positioning
DP Class 2
Class notation
Fire-fighting (FiFi)
FiFi 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 (8)
Data updated
- 1Owner-published documenthttps://hydrasubsea.com/wp-content/uploads/2025/10/Hydra-SSR4-Vessel-Spec-Sheet-2024.pdf ↗
- 2
- 3Owner vessel webpagehttps://hydrasubsea.com/vessel/subsea-responder-4/ ↗
- 4IACS — Vessels in Class public registerhttps://iacs.org.uk/membership/vessels-in-class ↗
- 5Commercial reference databases (not individually named)grouped category; individual databases are not publicly named
- 6
- 7
- 8USCG Port State Information Exchange (PSIX)https://cgmix.uscg.mil/PSIX/ ↗
Source labels show provenance, not endorsement or certification. Reference only; verify before use. See About this experiment.