COSL 286

Type of vessel:  ROV & DSV
Design:  ST-263

141 x 29 m Offshore Construction Vessel


The ST-263 design is a Multi-purpose Offshore Construction Vessel designed for COOEC by Skipsteknisk. The vessel is specially designed for operations under severe weather conditions and with high maneuverability and station keeping capability.

The vessel is outfitted for the following duties:

  • Pipe-laying and cable-laying over VLS through moon pool or over stern.
  • ROV operations, like pipeline / route survey.
  • Subsea installation work through moon pool and over side.
  • Crane operations for bottom positioning of subsea modules.
  • Anchor handling/mooring operations

Main Characteristics

Length overall  140.75 m
Length between p.p.  126.70 m
Breadth moulded  29.00 m
Depth to main deck  12.80 m
Deck area aft of hangar  1900 m2
Accommodation  150 POB
Main crane  400t @ 16m (200t@31m) mast crane
Secondary crane  50 knuckle boom
AH winch for mooring  250t
A/R winch  250t