Yiu Lian Dockyards is enhancing its towage capabilities in Hong Kong by expanding its tug fleet
Cheoy Lee Shipyards has delivered Hai Kun, the first of two shipyard tugs it is building to a Robert Allan design and Lloyd’s Register class. A second 32-m escort tug, Hai Peng, is scheduled for delivery later in August.
These are built to RAstar 3200-CL design with a bollard pull of 88 tonnes and top speed of 13.5 knots.
When designing these tugs, naval architects at Robert Allan redesigned the skeg section of the hull and used computational fluid dynamics simulations to confirm the tug’s expected escort performance. Other modifications were made to accommodate both the owner’s selected Niigata propulsion package and the required escort capability of the tug.
The 492-gt tugs have a moulded beam of 12.80 m, moulded hull depth of 5.37 m and maximum draught of 5.83 m. They each have a pair of Niigata 8L28AHX main engines rated at 2,574 kW at 750 rpm driving two Niigata ZP-41B Z-Peller propulsion units with AGCP192Y slipping built-in clutch and 270-cm diameter fixed-pitch propellers.
Hai Kun and Hai Peng have fire-fighting capabilities to FiFi1 class, with pumps and monitors able to produce 2,400 m3/hr of water.
Deck machinery comprises of a MacGregor-supplied hydraulic anchor windlass and double-drum escort towing winch on the bow, spooled with 200 m of line on each drum. There is also a Mampaey-provided disc-type towing hook on the main deck aft for line towing operations.
Each tug has accommodations for 10 crew, with the master and chief engineer each having their own cabins with ensuite washrooms. There are common washrooms on the main and lower decks and the remaining cabins are on the lower deck.
Update: Jiangsu Zhenjiang Shipyard, in China, has delivered an azimuth stern drive tug to Nanjing Port. Ning Gang 27 has 3,236 kW of power. It has the length of 38.62 m, breadth of 10.2 m, bollard pull ahead of 50.5 tonnes and speed of 13.6 knots.
Propulsion and tug design will be discussed in depth during Riviera’s Tug Technology Webinar Week, from 1 September. Use this link for more details and to register for our three webinars
Hai Kun and Hai Peng particulars
Owner: Yiu Lian Dockyards
Builder: Cheoy Lee Shipyards
Designer: Robert Allan
Design: RAstar 3200-CL
Class: Lloyd’s Register
Classification: 100A1 escort tug, FiFi1, Ship Right IHM, IWS, LMC
Length, oa: 32 m (excluding fenders)
Beam, moulded: 12.80 m
Depth, moulded: 5.37 m
Maximum draught: 5.83 m
Gross tonnage: 492
Fuel oil: 166 m3
Potable water: 49 m3