21m

We operate a fleet of safe, fast & multipurpose 21 metre crew transfer vessels (CTVs) designed, surveyed and classed to DNV + IAI HSLC R2 Wind Farm Service 1 notation.

To download a pocket plan please click below.

 

The design of our vessels incorporates the feedback from some of the most experienced professionals in the offshore windfarm industry, from the windfarm owners and builders to cable layers, surveyors and existing skippers of crew transfer vessels.

Our vessels have been designed by naval architect’s BMT Nigel Gee, one of the world’s foremost fast catamaran designers. Their hull designs operate around the world and are proven in the harshest of conditions.

Our vessels are built by Strategic Marine who were chosen for their extensive experience and high build quality of aluminium vessels. 

Dimensions

Length Overall: 20.6m

Moulded Beam: 7.4m

Service Draft: 1.4m

Deadweight: 18t

Foredeck: 32m2

Aftdeck: 20m2

Range: 650 nautical miles

Main Engines: 2 x MTU 8VS2000 M72 (965bhp each)

Aux Engines: 17.5kW Genset

Propulsion: 2 x FPP (Optimised for Speed & Bollard Push/Pull)

Tank Capacities

Bunkers: 10,000l

Fresh water: 500l

Speed

Sprint Speed: 26knts (@ 100% MCR)

Service Speed: 23knts (@ 85% MCR)

Crew Comforts

– Individual crew and passenger suspension seating with 240v sockets

– Additional seating (sofa style) and communal table area

– Wireless Internet access

– 2 x LCD TVs with DVD/Sat TV & Chart/CCTV Mirroring

– Air Conditioning/De-misting/Heating system

– Noise/Vibration insulation (max 75db @ service speed)

– Non-Skid flooring in all crew areas

– Drying storage area (incl numbered racks)

– Spare Parts Storage Area

– WC & shower

– Full galley

 

Addititional features

– Fuel Transfer System (incl 40m deck reel)

– High pressure washer

– 10ft Container Deck twist lock points on fwd & aft decks

– Multiple lashing pots/tie down points for deck cargo

– 6.5t Deck Knuckle Crane

– CCTV covering all areas incl engine room

– Intercom covering all areas incl engine room

– Loud hailer, Flood Lighting & Search Lighing

– Removable A-frame

– Dive Platforms

– Lifting Davits (& Strops)

– Transfer Access System ‘ready’

– VisSim ‘ready’

 

Our 21m CTVs are fitted with fixed pitch propellers propelled by MTU 8V2000 engines.

We expect to get approximately an extra 15% fuel/speed efficiency with an increased bollard pull of approx 30-40% over water jet systems of a similar power.

DNV is one of the world’s leading maritime classification societies. Building and classifying a vessel to their notation sets a benchmark for the design, build quality and fit out of vessels working on offshore windfarms.

Their standards are designed to minimise risks for those working offshore by setting minimum quality and redundancy standards for the vessel’s materials, hull structure, and the vessel’s systems and machinery.

DNV’s windfarm notation meets the minimum requirements for international flag states. This allows the vessels to work on offshore windfarms throughout the EU.