Windfarm Support Vessels

Keel Marine Ltd in conjunction with East Coast Charters Ltd is developing the designs for a fleet of various sized support catamarans for use in maintaining the growing number of offshore windfarm fields.

The design incorporates a double chine hull form that offers great stability at high speeds with the combination of a high deck load capability.

All interior spaces have been designed with the passengers’ comfort and ride given the highest priority, in order to provide a safe relaxed environment with excellent working facilities.

All vessels are designed to DNV 1A1 HSLC R2 Wind Farm Service 2 class and UK MCA Category 2 flag.

Current completed designs have the following specifications:


  18 m Windfarm Support Vessel 21 m Windfarm Support Vessel
Length Over All 18m 21.2m
Length BP 16.25m 19.45m
Breadth 7.5m 7.5m
Fuel Capacity 6000 Ltrs 6000 Ltrs
Cargo Capacity 10,000 Ltrs 10,000 Ltrs
Max Speed 27 knts 28 knts
Passenger complement 12 Persons 12 Persons


The 21m vessel has the capacity for either two 10” ISO containers or a crew transfer system to be located on the foredeck in front of the wheelhouse without impinging visibility.

The all-aluminium construction can be delivered in kit form to ease with construction times and costing.

Specifications and GA

18m WSV Specification and General Arrangement

21m WSV Specification and General Arrangement.

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Keel Marine LTD, Ridgeway Office Park, Unit 6 – 8, Bedford Road, Petersfield, Hants, GU32 3QF, U.K
+44 (0)1730 268889 EMAIL US