TYPE: Service Operation Vessel (SOV)
OWNER: Østensjø Rederi A/S (Norway)

The first vessels of their kind ever built in Spain, these SOVs are functioning as  mother ships for wind turbine technicians, as they perform maintenance work at offshore wind farms on the North Sea. To grant the safety of technicians during transfer operations, these vessels are equipped with cutting edge technology such as an UPTIME 23 m length heave compensated “walk-to-work” gangway, a cutting edge 3D compensated crane and a CTV landing system with bunkering facility. Aligned with the environmentally friendly mindset of the offshore wind industry, the consumption and efficiency of  Edda Passat  and Edda Mistral are greatly improved thanks to their variable rpm control system which enables the generators to run at their optimal speed.

General information
Hull materia Steel
Type Service Operation Vessel (SOV)
Delivery 2018
DNV-GL Class notation ✠ 1A1 BIS BWM(T) Clean(Design) COMF(C-2, V-2) DK(+) DYNPOS(AUTR) E0 NAUT(AW) Recyclable SPS Walk2work HLDK
Length overall 82 m
Length between perpendiculars 72.1 m
Breadth moulded 17 m
Depth from main deck 7.3 m
Draught 5.4 m
Fuel oil 830 m³
Fresh water 500 m³
Deadweight at maximum draught 1.900 t
Cargo deck area 360 m² outside deck, 350 m³ inside deck (cargo hold)
Accommodation for 60
Cabins 58 single outward cabins + 2 single inside cabins
Propulsion / Manouvering
Propulsion System Diesel-Eléctrico / Rolls Royce Marine SAVe Cube system
Main Engines 4 x MTU 16V4000 M63L, 2,240 kW each
Main Azimuth Propellers 2 x RRM US 205P20 CP, 1,500 kW each
Bow Tunnel Thrusters 3 x RRM TT2000 DPN CP Super Silent , 925 kW each
Maximum speed 13,5 kn
Transit speed 11 kn
Deck / Special equipment
Deck crane 1 x Deck crane 2 t at 16 m
3D Motion Compensated Crane 1 x SMST 1 t at 26 m
Daughter craft 1 x Daughter craft 25 knots, 11 m length 10 people capacity
Fast rescue craft 1 x MOB waterjet, 7 people capacity 220 HP
Active compensated motion gangway 1 x UPTIME 23 m length
Helideck 17.5 m diameter helideck, helicopter type: Sikorsky S76, BELL 212, BELL 412, Augusta Westland AW 139 y en español: 17,5 m de diámetro para helicópteros tipo:  Sikorsky S76, BELL 212, BELL 412, Augusta Westland AW 139

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