HM Denham

HM Denham is a custom built 17 m catamaran work boat, which is a stable and adaptable vessel. With 240 and 24 volt electric supply throughout, a wide range of equipment can be mobilised on board. She offers a comfortable and well equipped working area both inside and on deck.

HM Denham can be supplied with master, crew and work teams that are fully qualified and trained for the job at hand.

The vessel has 4 berths, a well equipped workshop, a shower & WC, and a comfortable galley / mess. An additional 4m inflatable can be mobilised on request.

This vessel is a proven workhorse having completed numerous dive, ROV and
survey contracts including the return of many clients for repeat work.


Vessel Dimensions

LOA 17.0 m
Beam 7.00 m
Draught 2.00 m


Work Boat Code ‘CAT 2’ (IMCA certified)
Coded for maximum 12 persons


Service speed 8 – 10 kts
Twin 270 kW Doosan marine diesel engines

Power Supplies & Communication

2 x 10 kVA marine generators
Stand-alone hydraulic power unit (diver friendly)
Dual VHF

Additional Features

  • 30 m2 operations deck
  • 2 x 3T Gilson winches
  • 2 x 350 kg capstan winches
  • 1 x 3T Hiab (bow) & 1 x 1.5T Hiab (stern)
  • 2 m x 1.5 m Moonpool

Work Scopes

Commercial diving
ROV & AUV operations
Filming / photography
Guard vessel
Training & educational
Ships husbandry


Supplies / hot shot
Moorings deployment / recovery
Marine construction
Archaeological investigation
2-4 point mooring operations

Survey Work Scopes

Inshore / near shore geophysical survey

MBES survey
UXO survey
SSS survey
Shallow geology surveys
USBL incl. Diver / ROV tracking

Environmental Survey

Water sampling
Seabed sampling
Marine mammal surveys
Fish surveys

Oceanographic Survey

Oceanographic equipment deployments / recover
Current monitoring
Tide gauge deployment / recovery