Richardson Devine launches 35 m catamaran workboat

Written by Nick Blenkey

outerlimitsAustralia’s Richardson Devine Marine has launched Outer Limit, a 35 m Incat Crowther catamaran work boat. It is the third vessel from Richardson Devine and Incat Crowther for operator Offshore Unlimited, following 2008’s Unlimited and 2010’s Limitless.

The vessel will be able to carry 125 t of deadweight, with capacity for up to 56 passengers on day operations and 32 berths for overnight operations. Drawing on operating experience with Unlimited and Limitless, Outer Limit features numerous work spaces, with desks in every cabin and an upper deck workspace with 14 seats. This workspace will be fitted with direct wireways to the aft deck to allow for quick installation and configuration of deck mounted equipment, whilst an adjacent bathroom improves functionality.

Two large cabins on the upper deck have half height glass bulkheads with blinds to allow interaction between the workstations and the helm.

The main deck cabin houses a wet room with lockers and bathroom, lounge, galley, mess, medical room and 6 cabins. A pair of these cabins will be able to be joined by retracting a dividing wall, creating a large 4 berth cabin.

The vessel’s hulls house a further 6 cabins, 4 of which also feature a sliding joining partition. In addition to these cabins, the hulls house refrigerator and freezer rooms, as well as service and storage spaces which offer increased range and operational flexibility.

The aft working deck features over 160 sq.m of work space – enough to accommodate four 20 foot containers. A Heila HLM 35-4S deck crane is fitted with remote control. A moon pool is also fitted and there are mounts for a removable luffing A-Frame of 20 t capacity.

The vessel is powered by a pair of Caterpillar C32 ACERT main engines, each producing 1,600 hp. Propulsion is by a pair of five-bladed propellers.

In recent trials, Outer Limit achieved a loaded speed in excess of 22 knots. Service speed will be 20 knots and the range will be 1,800 nm. Maneuvering is enhanced by a pair of Wesmar bow thrusters.

Length Overall  35.00 m
Length Waterline  34.44 m
Beam Overall  11.5 m
Draft (skeg)  2.23 m
Depth  3.90 m
Construction Marine grade aluminum

Fuel (main tanks) 37,000 liters
Fresh Water  2,000 liters
Sullage 6,000 liters
Passengers (day) 56
Passengers (berthed) 32
Aft Deck Area 160 m2
Deadweight 125 t

Speed (Max) 22 knots
Speed (Service) 20 knots
Main Engines 2 x Caterpillar C32 ACERT
Power 2 x 1193 kW (1,600hp) @ 2,300 rpm
Propulsors 2 x Five-bladed propellers
Generators 2 x Caterpillar C9, 200 ekW

Flag Australia
Class / Survey NSCV 2A/1B

March 29, 2012

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