‘Rem Gambler’ - a safe bet

Rem Gambler running her sea trials Rem Gambler running her sea trials
Industry Database

When the Fosnavåg-based offshore fleet operator Rem Maritime ordered its first AHTS vessel back in May 2007, the owner, Åge Remøy, took a gamble that the market would need the vessel and named it, appropriately, 'Rem Gambler'.

Recently delivered from the STX Europe yard at Brattvåg where the 95m long, 24m wide Tulcea, Romania, built hull was outfitted, the newbuilding is based on Aker Yards Projects’ AH12 design. At the time of writing, the 5,000 dwt, 8,053gt vessel claims the distinction of being the world’s most powerful AHTS with a 344 tonne bollard pull.

The hybrid propulsion power plant delivering this performance comprises two 7,680kW medium speed Wärtsila 16V32 mechanic diesels each driving a Wärtsilã/Lips 4.6m diameter 11,180kW FP propeller for a maximum speed of 18.9 knots. Each main engine also drives a 4,000kW ABB M6-FG 3 shaft generator with a 3,500kW PTI electric motor.

Auxiliary power is generated by means of four 2,100 kWe Caterpillar 3516 gensets and one 340 kWe Caterpillar C18 emergency generator. These gensets power a collection of Rolls-Royce propulsors comprising two 1,200kW TT2400 DPNFP bow thrusters, one UL2001 FP 1,500kW retractable azimuth thruster forward, one 1,200kW TT2400 DPNFP stern thruster and one 1,500kW UL2001 FP retractable azimuth thruster aft. To further aid manoeuvrability, the vessel is fitted with two Becker SC-2550/580 K2 rudders. A Kongsberg Maritime dynamic positioning system is installed for a DP2 capability.

This hybrid engine solution system enables the vessel to operate either in a diesel mechanical mode, diesel electric mode or a combination of both. The newbuilding is also capable of carrying out sub sea construction work and is fitted with a ROV roller gate and ROV side-door from TTS. Its cargo carrying capacity includes a 760m2 cargo deck area with deck strength of 10 t/m2, 932.9m3 fresh water, 3,673.8m3 ballast water, 2,006m3 fuel oil and 1,000m3 rig chain lockers in six tanks. The 6m long, 4.5m diameter stern roller provides a SWL of 500 tonnes.

For anchor handling, the vessel has a special handling drum with a 500 tonne pull capacity representing 14,800m of 76mm or 2,180m of 203mm wire. Towing equipment consists of two 450 tonne towing/working drums and two 170 tonne Brattvåg secondary winches each capable of handling 1,600m of 203mm rope, two rope reels for storage of 2x1,600m 210mm fibre rope and one reel for storage of 1,800m 90mm spare wire. In addition, there are five Rolls-Royce tugger winches, shark jaws, two cargo-rail cranes with Rolls-Royce manipulators for safe anchor handling and a 250/315 tonne A-frame. There is also an offshore crane foundation prepared for a 250 tonne crane.

Accommodation and equipment is provided for 70 persons in 20 single cabins and 25 double cabins. There is a 15 person MOB Mare GTC700 rescue boat in addition to six 35-person life rafts.

The spacious bridge offering all round vision has been fitted with a comprehensive range of navigation equipment including a Furuno FAR2117 X-band radar, a Kongsberg K-pos DP21 DGPS2 (132), DGPS1(200), an El-Chart/ECDIS Telchart tecdis + backup and a Furuno VDR voyage recorder. Above the bridge there is an aluminium helicopter deck with a maximum take-off weight of 12.8 tonnes.

Classed by DNV, the newbuilding has 1A1, SF, SUPPLYVESSEL TUG, E0, DYNPOS-AUTR, Comf-V(3) Clean Design, Naut OSV(A), DK(+), HELDK classification, T-mon.

Principal dimensions

Length oa: 95.00m

Length bpp: 85.00m

Breath mld: 24.00m

Draught: 7.15m

Draught summer: 7.80m

Deadweight: 5,000 tonnes

Gross tonnage: 8,053 tons

Main engines: 2 x 7,680kW medium speed Wärtsilã 16V32 mechanical diesels

Auxiliary engines: 4 x 2,100 kWe Caterpillar 3516 gensets

Main propellers: 2 x 11,180 KW 4,600 mm Wärtsilã/Lips

Max speed: 18.9 knots

Service speed: 12 knots

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