Our latest Live Steamers Probationary Member [October 2021] just happens to be the Senior Marine Pilot for the Port of Kembla....who confirms the following of the latest Svitzer Tug Ruby power plant detail source, and the duty cycle as used in Kembla
"This latest vessel measures 32.00m overall with a beam of 12.80m and a draft aft of 5.37m. She is powered with a pair of Caterpillar 3516C main engines, each developing 2,350kW at 1,800rpm driving Rolls-Royce US 255 CP type azimuthing Z-drives of 2,800mm diameter. Two sets of Caterpillar C 6.6 125eKW generator sets provide the auxiliary power"
It appears that the 4th Tug when handling the 100,000 tonners is always Tugs bow to the stern of the Tow and with the Azimuth drives, can maintain the needed tension to the Tow
[Kembla Ports Movements confirm all planned arrivals/depertures, including bulk carrier to 100,000 + tonnes, & Box Boats are on a 24/7 around the clock basis]
The Pilot boat will venture some 5 to 10 km from the Heads with the Pilot, generally the Tugs meet the Tow at/within the Heads, the only time the Tugs exit the Heads is if called to a ship with a planned dead engine, or a failed engine on the way to the Heads
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