VESSEL REVIEW | Magni – Iceland’s tug fleet gets a boost with powerful new harbour tug

TUG & SALVAGE WEEK
Photo: Gunnlaugur Rögnvaldsson

Associated Icelandic Ports (Faxaflóahafnir) took delivery of its brand new tug Magni last week in Reykjavik harbour after a journey of more than 10,000 nautical miles from Damen’s Song Cam Shipyard in Hai Phong, Vietnam.

Thanks to her operational flexibility, Magni can be used for harbour and terminal (un)berthing operations, escort operations, coastal towage operations and fire fighting operations. She replaces a smaller Damen tug of the same name built in 2006.

Magni will operate across a number of Icelandic ports. An increase in the number of cruise vessels visiting the country, as well as general shipping traffic, has made a powerful tug increasingly necessary.

With the brief being for a reliable, high quality tug with 85-tonne bollard pull and fire-fighting capability, Magni is 32 metres long, 12 metres in beam and is equipped with two 2,025kW main engines (a total of 6,772 horsepower).

The towing capacity of the tug is 85 tonnes forward and 84 to the rear, which is equal to the towing power of the combined existing Faxaflóahafnir tug fleet, comprising four vessels.

Magni is a highly manoeuvrable, high performance, environmentally friendly tug of modern design. The long distance between the towing point and the stern rudder propellers results in good manoeuvrability.

As a harbour and terminal tug, Magni is equipped with a forward rendering-recovery winch. The winch is a proven system to support offshore towing and escort operations in the toughest conditions. It works by preventing the peak loads that can occur in the towing wire in rough conditions, which can result in breakages. This is accomplished by rendering speeds of up to 80 metres per minute with line force of 100 tonnes and recovery speeds of up to 40 metres per minute with a line force of 30 tonnes.

Giving or taking a rope is simplified as the tug can go forward all the way up to the vessel to be towed, give or take a rope, and then pull away.

Magni features a large freeboard and more pronounced V-shape in the lines of the fore ship in combination with a raised forecastle deck to ensure a relatively dry working deck.

Her effective dynamic stability, deep skeg, bilge keels and relatively low wheelhouse position result in low accelerations for increased comfort, safety and sea keeping performance.

Magni’s optimised fendering system also ensures safe operations in offshore conditions.

Photo: Gunnlaugur Rögnvaldsson

The tug is equipped with a pair of Caterpillar 3516C TA HD/D main engines for a total of 5,050 bkW (6,772 bhp) at 1,800 rpm, driving Rolls Royce US 255 P30 FP azimuth thrusters with propeller diameter of 3,000mm.

She is prepared for the SCR/IMO Tier III system, giving Faxaflóahafnir the possibility of easily upgrading the tug from IMO Tier II to IMO Tier III emission limits, simply by installing additional equipment.

Magni also features a slipping clutch HD, to enable full fire-fighting driven by the main engines, while still remaining in full control of the propulsion power and thrust to manoeuvre the vessel. This saves the need to have a separate diesel engine and the additional maintenance that entails, or in cases of connection with the main engine without a slipping clutch, compromised manoeuvrability.

Photo: Gunnlaugur Rögnvaldsson

On the fore deck, a hydraulic double drum rendering-recovery winch is fitted. One drum is used for regular towing duties, and the other is fitted with an identical line and can be used as a standby in case of emergencies. The winch has a brake holding force of 200 tonnes on the second layer.

Photo: Gunnlaugur Rögnvaldsson

On the aft deck, between the towing bitt and deckhouse, a hydraulic towing winch is fitted. The winch is driven by a two speed hydraulic motor in combination with a gearbox, and also has a brake holding force of 200 tonnes on the second layer.

A Heila HLM 20-3S hydraulic operated foldable crane is also fitted on the aft deck, with lifting capacity of 1.7 tonnes at 10.56 metres.

In the coming days and weeks, Magni will be switched to the Icelandic flag before crews begin their training with her.

See all the content from the current Tug and Salvage Week right here

Magni
SPECIFICATIONS
Type of vessel: Harbour tug
IMO Number: 9855903
Classification: Lloyd’s Register 100 A1 Escort Tug (bollard pull =85t) LMC UMS IWS Fire fighting 1 with water spray, Green passport EU, ECO
Port of registry: Reykjavik
Flag: Iceland
Owner: Associated Icelandic Ports
Operator Associated Icelandic Ports
Designer: Damen Shipyards, Netherlands
Builder: Damen Shipyards, Vietnam
Construction material: Steel
Length overall: 32.70 metres
Beam: 12.82 metres
Draught: 5.90 metres
Depth: 5.35 metres
Displacement: 800 tonnes
Gross tonnage: 453
Net tonnage: 135
Main engines: 2 x Caterpillar 3516C HD TA/D, each 2,525 kW bkW (3,386 bhp) @ 1,800 rpm
Propulsion: 2 x Rolls Royce US 255 P30 fixed pitch, propeller diameter 3,000 mm
Generators: 2 x Caterpillar C4.4 TA, each 400 V, 107 kVA, 50 Hz
Maximum speed: 14 knots
Bollard pull: 85.5 tonnes (ahead); 84.2 tonnes (astern)
Radar: Furuno FAR-1518-BB
Echo sounder: Furuno FE-800
VHF Radios: 2 x Sailor 6222
Fire-Fighter radio: Sailor 3965 UHF
MF/HF radiotelephone: Furuno FS-1575
Autopilot: Simrad AP-70
Compass: Cassens & Plath Reflecta 11
Satellite compass/GPS: Simrad GN70/HS80A
GMDSS: Area A2
AIS: Furuno FA-170
Towing winch fore: Rendering/recovery winch, pull/low speed 30t up to 27 m/min on 2nd layer, pull/high speed 30t up to 44 m/min on 2nd layer, rendering 112t up to 82 m/min on 2nd layer, 200t brake
Towing winch aft: Damen Marine Components hydraulically driven single drum two speed winch with spooling device and warping head, high pull/low speed 31t up to 12 m/min, slack rope speed up to 39 m/min, 200t brake
Capstan: 2 x 5t at 15 m/min
Crane: Heila HLM 20-3S with winch
Other deck equipment: Mampaey SWL 100t towing hook
Fi-fi equipment: Main engine driven pump, 2,400m3 (FiFi 1) with water spray
Alarm system: Praxis Automation
Paints/coatings: International paint
Interior designer: Damen Shipyards
Liferafts: 2 x Viking, each 10-person
Fuel capacity: 148.3 m3
Freshwater capacity: 15.4 m3
Sewage capacity: 5.1 m3
Accommodation: 6 crew cabins, galley, mess/dayroom, switchboard room, dry store and sanitary facilities
Crew: 8

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