First windfarm service vessels built to DNV 1A1 HSLC R2 classVessel & ROV News // January 25, 2012
Zephyr and Maestro are the first vessels built to the new DNV class.
Now in service with Maritime Craft Services MCS Zephyr is the first vessel in the world to be built under survey to DNV 1A1 HSLC R2 Wind Farm Service 1 Class. The vessel will be followed into service by another, identical craft, MCS Maestro. They are built to UK flag and certified to MA Category 1.
Built by South Boats Special Projects Ltd., the vessels are configured with an off centre wheelhouse providing a 34m2 forward deck capable of carrying up to 8 tonnes of construction and O&M equipment. The aft deck is capable of carrying a further 2 tonnes of equipment.
Powered by twin MTU 8V2000M72 965 bhp diesel engines rated @ 2250 rpm coupled to twin UltraJet 575 waterjets via ZF2050 1.765:1 reduction gearboxes, the craft have a top speed of 26 knots and are capable of cruising at speeds of 24 knots (90 per cent MCR) in arrival condition.
This excellent fuel efficiency allows them to spend more time working on the windfarm structures.
Fitted with an Ultra Dynamics JetMaster joystick control system the vessels are capable of manoeuvring close to the wind farm structures in all weather conditions and keeping position - operations that are often difficult using propeller driven craft.
The passenger saloon onboard the vessels incorporates individual crew and passenger seating for up to 16 and incorporates TV/DVD and forward looking cameras.