VESSEL REVIEW | Ri Gang Tuo 1 – Chinese Yellow Sea port operator welcomes two new tugs to fleet

TUG AND SALVAGE WEEK
Photo: Robert Allan Ltd

Rizhao Kingda Shipbuilding Heavy Industry of China has handed over two new ASD tugs in a series to Ri Zhao Port in Shandong on the country’s Yellow Sea coast.

Ri Gang Tuo 1 and Ri Gang Tuo 2 were both designed by Canadian naval architecture firm Robert Allan Ltd. The sisters belong to a series that has been specially designed for owners that prefer to operate tugs with shallow draughts and to assist ships with low freeboards. Other roles include coastal towing, general purpose towing, escort, and external firefighting.

The new tugs each have an LOA of 34.3 metres, a moulded beam of 11.2 metres, a maximum draught of 4.61 metres, and two foam monitors. Power is provided by two Niigata 6L28HX 1,838kW diesels connected to Kongsberg Maritime US205S P20 Z-drive, fixed-pitch propellers. This configuration will allow the tugs to achieve a bollard pull of 64.3 tonnes and a free running speed of just over 14 knots.

Photo: Robert Allan Ltd

Each of the multi-purpose tugs is outfitted with a variety of deck machinery including a hawser winch from Masada Ironworks and two windlasses.

Ship handling fenders at the bow consist of an upper row of cylindrical fenders and a lower course of W-fender. Sheer fendering consists of “D” rubbers and a smaller cylindrical fender at the stern.

The accommodations have been outfitted for a crew of ten with master’s cabin, mess, and galley arranged in the deckhouse and all other crew cabins located on the lower accommodation deck. There is also a provision store on the lower deck.

The wheelhouse is designed with a single split-type control station that provides maximum all-round visibility with exceptional visibility to the bow and side fendering as well as operations on the aft deck.

Each tug’s total tank capacities are 105 cubic metres for fuel oil, 43 cubic metres for potable water, 43 cubic metres for ballast water, and 12 cubic metres for firefighting foam.

Ri Gang Tuo 1 and Ri Gang Tuo 2 were designed in compliance to China Classification Society rules.

Click here for more news and gear stories, feature articles, and vessel reviews as part of this month’s focus on the tug and salvage sector.

Ri Gang Tuo 1 & Ri Gang Tuo 2
SPECIFICATIONS
Type of vessel:Harbour tugs
Classification:China Classification Society
Port of registry:Ri Zhao, China
Flag:China
Designer:Robert Allan Ltd, Canada
Builder:Rizhao Kingda Shipbuilding Heavy Industry, China
Length overall:34.3 metres
Beam:11.2 metres
Draught:4.61 metres
Main engines:2 x Niigata 6L28HX, each 1,838 kW
Propulsion:2 x Kongsberg Maritime US205S fixed-pitch propellers
Maximum speed:14 knots
Bollard pull:64.3 tonnes
Winch:Masada Ironworks
Firefighting equipment:2 x monitors
Type of fuel:Diesel
Fuel capacity:105 cubic metres
Freshwater capacity:43 cubic metres
Accommodation:Cabins; mess; galley
Crew:10
Operational area:Yellow Sea, China

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