Seven Pegasus

Subsea 7 Buys IHC Built Offshore Construction and Dive Support Vessel

Subsea 7 has finalised the acquisition of Toisa Pegasus, a multi-purpose offshore construction and dive support vessel.

The 2009-built vessel is to be renamed Seven Pegasus and will primarily support Subsea 7’s operations in the North Sea and Asia Pacific.

Heavy and Light Construction Work

The versatile vessel can perform both heavy and light construction work scopes. Designed and built by IHC, this highly capable DP3 vessel features a twin-bell 18-man saturation diving system and benefits from a 400 T crane enabling it to support a range of construction projects. Additionally, its large and flexible 1200 m2 back deck provides further scope for a variety of applications. 

The vessel will undergo a docking and crew familiarisation programme before commencing operations in quarter two 2019.

Main Vessel Particulars

  • Built: Netherlands, 2009
  • Flag State Authority: Liberia


  • Length Overall: 133 m
  • Breadth: 22 m
  • Depth: 7.6 m
  • Draught design: 6.75 m
  • Deadweight: 9300 t
  • Gross Tonnage: 9494 t
  • Net Tonnage: 2849 t
  • Dynamic Positioning: DP 3


  • Main Engines: 4x Diesel electric installation B&W MAN 9L27/38 diesel engines, each driving an alternator and each producing 2680 kW at 690 V 3Ph.60Hz. Emergency set of 170 kW located above freeboard deck.
  • Generators Propulsion: 2x Stern fully azimuthing nozzles with fixed pitch propeller units driven by infinitely variable speed frequency controlled motors. Each thruster develops 3000 kW. 2x bow tunnel thrusters of variable pitch type each thruster develops 1335 kW, 1x retractable azimuthing thruster of variable pitch type developing 1200 kW.

Tank Capacities

  • Fuel Oil: 1200 m3
  • Fresh Water: 520 m3
  • Ballast Water: 3100 m3

Cargo Deck and Accommodation

  • Deck Area: 1200 m2
  • Deck Strength: 5 t/m2
  • Accommodation: 199 persons

Author: Mariska

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