Deep Cygnus

Type of vessel:  ROV & DSV
Design:  ST-256L

122.0 m Multi Purpose Vessel / Offshore Combatant Vessel for owner Volstad Maritime AS


"Deep Cygnus", designated ST-256L, is a purpose built Offshore Construction Vessel built at Bergen Group Fosen, Norway, yard no. 81 for owner Volstad Maritime AS. It was delivered in 2009.

The vessel is specially designed for operation under severe weather conditions and with high maneuverability and station keeping capabilities.

The vessel is outfitted and prepared for the following duties:

  • •Cable laying from carousel
  • •Trencher operations over the side
  • •ROV operations from hangar
  • •General DP operations
  • •General offshore construction services
  • A-frame operations over stern

Main Characteristics

Length over all  122.40 m
Length between p.p.  108.00 m
Breadth moulded  22.00 m
Depth to main deck  10.00 m
Max draft  7.30 m
DWT at SWL / 7.30 m  approx. 7900 tons
Deck area aft of hangar  1400 m2
Gross tonnage  9423 tons
Speed  14.5 knots
Accommodation  106 pers + hospital
IMO  9479541