VESSEL REVIEW | T Damla 9 – New shallow-draught tug takes on ship handling and firefighting duties at Turkey’s Aliaga Port


Turkish shipbuilder RMK Marine has delivered the second and final unit in a series of ship handling and firefighting tugs ordered by local vessel owner Ditaş Denizcilik for operation by its Istanbul-based harbour services subsidiary, T Damla Denizcilik.

Classed by the American Bureau of Shipping and designed by Canadian naval architecture firm Robert Allan Ltd (RAL), T Damla 9 – as well as sister vessel T Damla 8, which was delivered by RMK earlier this year – is a modified example of RAL’s 25- by 12-metre multi-purpose ASD tug. The most notable change from the standard configuration 25- by 12-metre tug is the significantly reduced draught, which was requested by the owner to enable the vessel to manoeuvre more effectively within the waters of the Port of Aliaga in the Aegean Region of western Turkey.

T Damla 9 has an LOA of 25.4 metres, a moulded beam of 11.8 metres, a moulded depth of 4.6 metres, a draught of five metres, and accommodations for six crewmembers in MLC-compliant cabins that also include separate one-person cabins for the captain and the chief engineer. Also included in the onboard amenities are a galley and a mess/lounge area.

Power is provided by two MTU 16V4000M63L IMO Tier II-compliant diesel engines each rated 2,240 kW at 1,800 rpm. The engines are connected to a pair of Rolls-Royce US 255S controllable pitch azimuth drives through straight line carbon fibre shafts, and this gives T Damla 9 a bollard pull of 70 tonnes. The engine room is efficiently laid out and also has a separate switchboard room.

The wheelhouse has been designed with a single split control station for both ahead and astern operation. Both types of operation are aided by the unobstructed view of both the fore and aft decks.

For towing duties, the tug is equipped with two Data Hidrolik DTH 70-130 towing hooks and two DFW 45x180HZ split drum hydraulic towing winches mounted on the fore and aft decks. Both winches are capable of first layer performance of 180 tonnes brake holding load and pulls of 45 tonnes at eight metres per minute and 10.5 tonnes at 32 metres per minute. The aft deck also features a Toimil Garcia deck crane with a lifting capacity of up to 28 tonnes. Power for all deck machinery is drawn from a pair of packaged diesel generator sets supplied by Italian company Margen.

T Damla 9 has FiFi1 capability thanks to an IACS-approved firefighting system supplied by Marsis, which is also located in Istanbul. The system consists of two main engine PTO-driven pumpsets and two electric-powered, remote-operated monitors with seawater and foam capacities of 1,200 m³/h and 300 m³/h, respectively. The monitors are also designed to be operated manually if conditions permit i.e. in instances wherein the crew would not be put at risk while they are out on the deck during firefighting operations.

The tug’s fendering system was developed jointly by RAL and Slovakia-based Bencros to meet the owner’s requirements for maximum fender pressure. These fenders consist of a bow-mounted upper row of 1,000-mm diameter cylindrical fender tapering to 800-mm diameter at the sides and a lower course of W-fender. The bow and the stern are further protected by block fenders that have been custom-cut to fit the vessel lines, and both port and starboard sides have 300-mm D-fenders.

T Damla 9 has already begun operating alongside the other tugs, pilot boats, and mooring vessels in the T Damla Denizcilik fleet serving various clients in the Port of Aliaga.

See more stories from this month’s Tug and Salvage Week here.

T Damla 9
Type of vessel: Ship handling and firefighting tug
Classification: ABS ✠ A1, Towing Vessel, FFV 1, ✠ AMS, QR, BP (+70), Unrestricted Service
Flag: Turkey
Owner: Ditaş Denizcilik
Operator: T Damla Denizcilik
Designer: Robert Allan Ltd, Canada
Builder: RMK Marine, Turkey
Hull construction material: Steel
Superstructure construction material: Steel
Deck construction material: Steel
Length overall: 25.4 metres
Beam: 11.8 metres
Draught: 5 metres
Depth: 4.6 metres
Main engines: 2 x MTU 16V4000M63L engines, each 2,240 kW
Propulsion: 2 x Rolls-Royce US 255S controllable pitch azimuth drives
Generators: 2 x Margen diesel generator sets
Bollard pull: 70 tonnes
Winches: 2 x Data Hidrolik DFW 45X180HZ split drum hydraulic towing winches with DTH 70-130 towing hooks
Crane: Toimil Garcia deck crane with 28-tonne lifting capacity
Other equipment installed: Marsis FiFi1 package with two remotely operated seawater/foam pumps with 1,200/300 m³/h capacity; Bencros fendering system
Type of fuel: MGO
Fuel capacity: 72.9 cubic metres
Freshwater capacity: 9.8 cubic metres
Accommodation: MLC-compliant crew accommodations including separate cabins for captain and chief engineer
Crew: 6

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