TECHNICAL SPECIFICATIONS
Overall Length
105.00m
Beam
40.8m
Maximum Draft
5.1m
Year Built
0000
Accommodation
120 Berths
Dynamic Positioning
DP1 System
VESSEL OVERVIEW
A 800-ton self-elevating wind power installation vessel designed for installation of large-megawatt wind turbines, replacement of major wind-turbine components and life-support duties for offshore oil platforms. This vessel is configured as a four-legged self-elevating unit with hydraulic jacking, an 800-ton full-slewing main crane and DP1-assisted manoeuvring capability.
PRINCIPAL PARTICULARS
Vessel type: 800-ton Self-Elevating Wind Power Installation Vessel
Primary applications: Large-megawatt wind turbine installation; major wind-turbine component replacement; offshore oil-platform life support
Classification: CCS
Class notation stated in source: CSA Self-Elevating Offshore Wind Turbine Service Unit; Thruster; Crane Unit; Lifting Appliance; IWS; DP1
Dynamic positioning: DP1
Navigation: Coastal
Length overall: 105 m
Breadth: 40.8 m
Depth: 7.5 m
Load draft: approximately 5.1 m
Maximum operating water depth: 50 m
Accommodation: 120 persons
Variable load: 2,000 tonnes maximum
Main deck load capacity: 120 kN/m²
SELF-ELEVATING / JACKING SYSTEM
Number of legs: 4
Leg diameter: 3.9 m
Overall leg length: 97.7 m
Usable leg length: 76 m
Pile shoe dimensions: 11.6 m × 9.2 m × 2.2 m
Pile pulling capacity: approximately 5,500 tonnes
Single-leg pre-pressure: approximately 6,300 tonnes
Lift-cylinder speed: approximately 0.45 m/min
Jacking system: Hydraulic
Maximum stated operating water depth: 50 m
MAIN CRANE & LIFTING EQUIPMENT
Main crane: 800-ton full-slewing crane
Main hook capacity in jacking condition: 800 tonnes at radii of approximately 24–35 m
Main hook lifting height: up to approximately 143.8 m above deck in the supplied lifting data
Main hook rated capacities by radius: 800 t at 24, 27, 30 and 35 m; 620 t at 40 m; 480 t at 45 m; 380 t at 50 m; 290 t at 55 m; 220 t at 60 m; 160 t at 65 m; 110 t at 70 m; 65 t at 75 m; 30 t at 80 m
Auxiliary hook: 280-ton capacity at approximately 27.9–39.9 m radius in jacking condition
Auxiliary hook maximum stated lifting height: approximately 154.2 m above deck
Auxiliary hook rated capacities by radius: 280 t at 27.9, 31.2, 34.5 and 39.9 m; 235 t at 45.4 m; 190 t at 50.8 m; 140 t at 56.2 m; 105 t at 61.7 m; 75 t at 67.1 m; 55 t at 72.5 m; 40 t at 78.0 m; 25 t at 83.4 m; 15 t at 88.8 m
Rigging hooks: 2 × 10-ton
Main crane floating-state capacity: The supplied lifting data gives reduced floating-state capacities; refer to the vessel's certified crane load chart for operational limits
Auxiliary crane floating-state capacity: The supplied lifting data gives reduced floating-state capacities; refer to the vessel's certified crane load chart for operational limits
PROPULSION, THRUSTERS & POSITIONING
Bow thrusters: 2 × azimuth thrusters, 1,000 kW each
Stern thrusters: 2 × azimuth thrusters, 1,800 kW each
Total installed thruster power: 9,600 kW
Positioning / station keeping: DP1 plus self-elevating jacking and anchoring arrangements
ANCHORING EQUIPMENT
Port anchor winch: 500 kN × 50 mm wire × 650 m – 1 unit
Starboard anchor winch: 500 kN × 50 mm wire × 650 m – 1 unit
Positioning anchors: 2 × 10-ton Deertai HHP anchors
Electric winches: 4 × 10-ton electric winches, 110 m
POWER GENERATION & ELECTRICAL SYSTEM
Main diesel generator sets: 4 × 1,800 kW
Main electrical system: 690 V / 50 Hz
Emergency / harbour generator: 1 × 600 kW
Emergency / harbour electrical system: 380 V / 50 Hz
Total main generator capacity: 7,200 kW
Total generator capacity including emergency / harbour set: 7,800 kW
DECK & CARGO CAPABILITY
Variable load: Up to 2,000 tonnes
Main deck loading: 120 kN/m²
Deck suitability: Configured for heavy offshore wind-turbine installation and major component handling, subject to approved load plans and operational limitations
GENERAL ARRANGEMENT / DECK LEVELS
CRANE OPERATING DATA – SUPPLIED LIFTING INFORMATION
Main deck elevation: 7,500 mm ABL
01 deck: 11,300 mm ABL
02 deck: 14,500 mm ABL
03 deck: 17,700 mm ABL
04 deck: 20,900 mm ABL
Top deck: 24,100 mm ABL
Additional deck levels stated: 1,200 mm ABL and 2,400 mm ABL
Frame spacing: 0.70 m between FR-22 and FR0; 0.60 m between FR0 and FR150
The supplied technical brief includes detailed main-hook and auxiliary-hook load/radius/height information for both jacking and floating conditions. The principal jacking-state main-hook data demonstrates an 800-tonne capacity through approximately 35 m radius, reducing with increasing radius. The supplied charts should be used together with the certified crane load chart, stability booklet and approved operating procedures before any commercial or operational commitment.
INTENDED OFFSHORE APPLICATIONS
Installation of large-megawatt offshore wind turbines.
Installation and handling of major wind-turbine components.
Replacement of major offshore wind-turbine components.
Offshore construction and heavy-lift support within the vessel's certified operating envelope.
Life-support and accommodation duties for offshore oil platforms.
Self-elevating operations in water depths up to the stated 50 m operating limit, subject to site-specific geotechnical and environmental assessment.
COMMERCIAL POSITION
Availability: Offered for sale or long-term charter
Broker: MJM Offshore Ltd
Commercial enquiries: MJM Offshore Ltd will provide further technical, commercial and inspection information to qualified parties subject to owner approval and the applicable confidentiality / due-diligence process.
TECHNICAL & COMMERCIAL DISCLAIMER
This specification has been prepared by MJM Offshore Ltd from the technical information figures are presented as stated in the source material and should not be interpreted as independent verification. Prospective buyers and charterers should conduct their own technical, class, flag, statutory, condition, lifting, stability, jacking, leg penetration, geotechnical and operational due diligence. Final capabilities and operating limits are subject to the vessel's approved documentation, certificates, class requirements, site conditions and the owner's confirmation.