SLEIPNIR

SLEIPNIR (IMO: 9781425) sailing under the Panama flag. It has an overall length of 722 feets and a beam of 335 feets.

Vessel Identification

• MMSI: 374887000
• IMO: 9781425
• Call Sign: 3FER4
• Flag State: Panama
• Vessel Type: Heavy Lift Crane Vessel
• AIS Type: Special Craft

Specification

• Gross Tonnage: 198,967 GT
• Deadweight: 117,741 DWT
• Length Overall: 220.0 m
• Beam: 102.0 m
• Draft: 10.8 m
• Displacement: approximately 270,000 tonnes

Propulsion

• Propulsion Type: Diesel-Electric
• Engine Configuration: 6 × Wärtsilä diesel generating sets
• Total Power Output: approximately 96,000 kW
• Propulsion Units: 8 × Azimuth thrusters (4 forward, 4 aft)
• Dynamic Positioning: DP3 class
• Speed: approximately 10 knots

Shipyard

• Builder: COSCO Shipyard (Qidong), China
• Year Built: 2019
• Delivery Date: 2019

Owner / Operator

• Owner: DEME Group (Deckhand Shipping Company S.A.)
• Operator: HEBO Maritiemservice / Boskalis (commercial operations via Boskalis and DEME consortium)
• Technical Manager: DEME Group
• Registered Owner Entity: Sleipnir Shipping Company S.A., Panama

Navigation / Communications Equipment

• Dynamic Positioning System: DP3 (DNV GL certified)
• AIS Class: Class A Transponder
• Navigation Systems: DGPS, integrated bridge systems
• Communication Systems: GMDSS compliant, VSAT satellite communications
• Radar Systems: Multiple X-band and S-band radars

Operating Region

• Primary Operating Region: Worldwide, with primary focus on offshore oil and gas fields and offshore wind sectors
• Notable Regions: North Sea, Middle East, Asia-Pacific
• Port of Registry: Panama City, Panama

Vessel Description

Sleipnir is the world's largest semi-submersible crane vessel (SSCV) and is owned and operated by DEME Group subsidiary Heerema Marine Contractors. The vessel is equipped with two revolving cranes, each with a lifting capacity of 10,000 tonnes, providing a combined maximum lift capacity of 20,000 tonnes at a 42-metre radius. The vessel is designed for the installation and decommissioning of large offshore structures, subsea construction, and heavy lift operations in the offshore energy sector, including both oil and gas platforms and offshore wind foundations. Named after the mythological eight-legged horse of the Norse god Odin, Sleipnir operates under DNV GL class notation and meets the most stringent offshore operational standards. The vessel features accommodation for up to 400 personnel and incorporates an integrated living quarters module with full operational support facilities.