Baltic Workboats AS built 23-meter wind farm service catamaran to German owner


The Christening ceremony of Wind Force II, a wind farm catamaran built by Baltic Workboats, occurred end of May 2013 in Norddeich, the homeport of FRISIA Offshore (FO) vessels in Northern-Germany.

Wind Force II is a sistership of FO-s Wind Force I and also the fifth vessel within the FO fleet.

Although, Baltic Workboats has extensive experience in building vessels for a wide variety of applications including catamarans, this is the first Wind Farm service catamaran being built in the Nasva yard.

What makes it special is the fact that the vessel is built to fulfill new DNV HSLC Windfarm Service II requirements. It makes the catamaran to be first vessel ever built to fully comply with these new rules.

Although being second in the series this vessel has many more improved features. Including a totally new and innovative approach to navigation, communication and vessel control and monitoring system. Vessel displacement is reduced by approx. 6 tons down to 73 tons.

The 22,02 m long and 8,0 m wide vessel with a 1,85m draft, is driven by two MTU 10V2000M72 main engines, each of 900 kW at 2250 rpm, providing a speed of 25 knots. Also featuring are two ZF3050 2,5:1 marine gearboxes, two Cummins Onan 27 kW generators and two Sleipner 50 hp hydraulic bow thrusters.


Catamaran characteristics:


Length Overall – 22,02 m 

Beam – 8 m 

Depth – 3,16 m 

Draft max – 1,9 m 

Displacement lightship – 62 T

Construction – Marine grade aluminium

Crew – 3

Special personnel – 25

Fuel - 9000 liters

Fresh Water – 1000 l

Sewage - 1000 l

Engine - 2 x MTU 10V2000M72

Power - 2 x 900 kW @ 2250 rpm 

Propulsion 2 x Fixed Pitch Propeller

Bow thruster - 2 x Side Power SH550

Generators – 2 x Cummins 27 MDKBU

Speed (Service) –22 knots

Speed (Max) –25 knots

Flag - German

Classification – DNV *1A1 HSLC R1 Windfarm Service 1 E0 (Declaration of Compliance to Windfarm Service 2)