Robert Allan Designs Tug for Rio Tinto

MarineLink.com
Friday, May 10, 2013
Pilbara Apollo (Photo: Robert Allan)

The Pilbara Apollo, the latest addition to the RAstar 3200 escort tug series was delivered to its owners, Rio Tinto Ltd., earlier this year. The vessel was constructed at Uzmar Shipbuilding Industry Co. in Turkey and will operate at Rio Tinto’s iron ore export facilities at Cape Lambert (Port Walcott) and Dampier, Australia. The Pilbara Apollo is the first of six new RAstar 3200 tugs to be delivered to Rio Tinto as part of this contract. The tugs will assist very large ore carriers in berthing and un-berthing at exposed, open water berths in severe wind and wave conditions.

The unique sponsoned hull form of the RAstar Class vessels gives these new tugs a level of safety and comfort that will enable operation in conditions that were previously deemed unworkable. This unique RAstar hull form developed by Robert Allan Ltd. has been proven in both model and full-scale testing to provide significantly enhanced escort towing and seakeeping performance. The motions and accelerations are less than half those of comparable sized, wall- sided “standard” tug hulls.
Particulars of the Pilbara Apollo are as follows:

Overall length: - 32 m (excluding fenders)
Beam, molded: - 12.80 m
Depth, molded (hull): - 5.37 m
Navigational draft (DWL): - 6.03 m

Pilbara Apollo was classed by Bureau Veritas during construction, but will be converted to Lloyd’s Register once in Australia.

Tank capacities are:

Fuel Oil: - 129 m3
Fresh Water: - 39 m3
Z-drive Oil: - 1.0 m3
Sludge: -2.7 m3
Oily Water: - 14.5m3
Main engine lube oil: - 3.4 m3
Sewage: - 5.7 m3

On trials, Pilbara Apollo met or exceeded all performance expectations, with the following results:

Bollard Pull, ahead: - 80.9 tons
Bollard Pull, astern: - 77 tons
Free Running speed, ahead: - 14 knots

Main propulsion for each tug comprises a pair of CAT 3516C HD diesel engines, each rated 2350 kW at 1800 rpm, and each driving a Rolls Royce US255 Controllable Pitch Z-drive unit.

The hydraulic deck machinery, all from Ridderinkhof, consists of a split-drum escorthawser winch on the foredeck, and a single drum towing winch aft.

The electrical plant consists oftwoCAT C6.6 diesel gen-sets, each with a power output of 100 ekW.

The vessel has been outfitted to the highest standards for a crew of up to six people. The lower deck contains crew quarters and the Master and Chief Engineer staterooms. The wheelhouse is designed for maximum all-round visibility with a forward control station providing maximum visibility to both fore and aft deck working areas.

Ship-handling fenders at the bow consist of two rows of 1,000 mm deep, 1,400 mm wide custom designed “W” fenders. Extruded hollow 300 x 300 square section rubber fenders provide protection at the main sheer line, and 500 mm wide by 450 mm deep “W” block type fendering is used at the stern. The fendering system was devised by the Owner’s representative Neil Edwards, working in close cooperation with the design team at Robert Allan Ltd. and the fender suppliers, Maritime International. The fendering system was subject to extensive FEA analysis to verify the responses and loads. Early indications from the operators are that this solution will perform very well in the rough sea conditions.

www.ral.ca

  • Pilbara Apollo (Photo: Robert Allan)

    Pilbara Apollo (Photo: Robert Allan)

  • Pilbara Apollo (Photo: Robert Allan)

    Pilbara Apollo (Photo: Robert Allan)

  • Pilbara Apollo (Photo: Robert Allan)

    Pilbara Apollo (Photo: Robert Allan)

  • Pilbara Apollo (Photo: Robert Allan)
  • Pilbara Apollo (Photo: Robert Allan)
  • Pilbara Apollo (Photo: Robert Allan)
Maritime Reporter November 2014 Digital Edition
FREE Maritime Reporter Subscription
Latest Maritime News    rss feeds

Shipbuilding

Cecon Secures Finances to Complete Newbuild

Cecon ASA has petitioned for a debt restructuring agreement (in Norwegian: gjeldsforhandling). Certain funds managed by York Capital Management Global Advisors,

NMEA Updates Installation Standards

2014 edition of NMEA 0400, Version 4.00 features extensive updates and new information   The National Marine Electronics Association (NMEA) has published Edition 2014, Version 4.

HII Board of Directors Elects Two VPs

Huntington Ingalls Industries’ (HII) board of directors has elected Kellye Walker to serve as corporate vice president and general counsel and Charles R. “Chuck” Monroe Jr.

Workboats

Multraship Buys Three More Tugboats from Damen

Multraship and Damen Shipyards Group agreed on three new ASD (Azimuth Stern Drive) Tugs, all for delivery to Multraship in 2015. After delivery in Vietnam, scheduled

Waterjet-propelled Crewboat Delivered to Petrobras

BS Camburi, a 36-meter Monohull Crewboat built in Brazil by Arpoador Engenharia to the Petrobras type P2 specification has been launched and delivered.   Designed by Incat Crowther,

Damen Responds to Evolving Fishing Practices

Maaskant Shipyards Stellendam meets fishing sector’s growing needs by performing electric pulse fishing conversions   As European fishing policies evolve, so fishing techniques advance.

Naval Architecture

Waterjet-propelled Crewboat Delivered to Petrobras

BS Camburi, a 36-meter Monohull Crewboat built in Brazil by Arpoador Engenharia to the Petrobras type P2 specification has been launched and delivered.   Designed by Incat Crowther,

Damen Responds to Evolving Fishing Practices

Maaskant Shipyards Stellendam meets fishing sector’s growing needs by performing electric pulse fishing conversions   As European fishing policies evolve, so fishing techniques advance.

Damen Delivers Survey Vessel to Fugro

Fugro Frontier is the third vessel in a series received by Fugro during 2014   Three months after its last delivery, Fugro has received the third of a series

 
 
Maritime Contracts Maritime Standards Navigation Offshore Oil Pipelines Pod Propulsion Port Authority Salvage Shipbuilding / Vessel Construction Winch
rss | archive | history | articles | privacy | terms and conditions | contributors | top maritime news | about us | copyright | maritime magazines
maritime security news | shipbuilding news | maritime industry | shipping news | maritime reporting | workboats news | ship design | maritime business

Time taken: 0.3726 sec (3 req/sec)