Brave Tern / Bold Tern Self‐elevating Wind Turbine Installation and Crane Units


Classification and Rules Vessel type: Gusto MSC NG‐9000C‐HPE


Class: DNV +1A1, CLEAN DESIGN NAUT‐OSV(A) OPP‐F DYNPOS‐AUTR EO HELDK Delivery: May 2012 / September 2012 Yard: Lamprell PLC, Dubai Flag: Republic of Malta


Principal Dimensions Hull length o.a. [m]: 132 Hull breadth mid [m]: 39 Hull depth [m]: 9


Minimum draft (unloaded) [m]: 4 (+0.8 to spud can tip) Max draft (jacking) [m]: 5.2 (+0.8 to spud can tip)


Cargo Capacity Typical payload [t]: 5300 Deck area [m2]: 3200


Jacking System


Type: MSC continuous hydraulic double‐acting system Effective jacking capacity [t]: 5300 per leg Pre‐loading capacity per leg [t]: 9000 Holding capacity per leg [t]: 9000


Jack‐up lifting / lowering speed [m/min]: 0.4 / 0.5 Leg handling speed [m/min]: 0.6


Legs and Spudcans


Number & type: 4 cylindrical Diameter [m]: 4.5 Length [m]: 78.4


Max leg length below ship baseline [m]: 58 Spudcan area [m2]: 106


Safety Systems Uniform deck loading [t/m2]: 5 ‐ 10


WTG topsides capacity (typical): 10 of 3MW, 5 of 6MW Jacket foundation capacity (typical): 3 (40m water depth)


Propulsion, Maneuvering and Positioning Aft propulsion: 3 x 3800 kW Voith Schneider propellers


Fwd maneuvering: 3 x 1750kW Wärtsilä Lips tunnel thrusters Transit speed [knots]: 12 Positioning: DP2


Water depth range1 [m]: 7.5 – 45 Transit fully loaded: up to 3.5m Hs seas Jacking: up to 1.8m Hs seas


Operational Limitations


Elevated standby1: Survival waves 10.8m Hs Main Crane


Elevated crane operations1: 4m Hs


Type and location: Gusto GLC‐800‐ED around aft port leg Main hook: 800 t at 24m outreach, 102m height over deck Auxiliary hook: 50t at 90m outreach (certified for man‐riding)


Min / max outreach [m]: 21 / 94 Wind limit [m/s]: 16


Power generation


4 diesel electric Wärtsilä generators: 1 x 12v32 5760kW, 1 x 6L32 2880kW, 2 x 9L32 4230kW Harbor (emergency) generator. CAT 3512B 1400kW Output range: 60 Hz, 230‐690V


1Dependent on soil conditions and site specific assessment


Fire and safety systems: Compliant with DNV Offshore Code, IMO MODU Code and SOLAS/SPS Code, North Sea Standard Gas and fire detection: Shipwide integrated system with ESD


Fire extinguishing: Ultra Fog water mist system Life saving: 100% complement fully enclosed lifeboats and inflatable rafts on each side of ship


MOB: high speed rescue boat + CrewFinder system Access


Helicopter deck D22m, 12.8t (CAP437) Gangway to foundation or quay Man riding cranes


Accommodation and Facilities Total complement: 80 persons in 56 cabins Cabins equipped with en suite bathroom, Sat TV/video


Client offices and workshop, fitness room, laundry, TV room, etc. Leg retrieval system (jetting)


Capacity: 150m3/h @30bar Capacity: 300m3/h@ 10bar 6 nozzles on each spudcan


Fuel consumption Transit speed of 12 knots [t/24h]: 53


Jacked up incl./excl. crane operations [t/24h]: 10 / 8.5 Deck Cranes


2 cranes of type 20t SWL, 27m max radius Certified for man riding


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