Rotor tugs use radical design for strength, flexibility

WHEN the new rotor tug, RT-Rob, left the yard of Niigata Shipbuilding and Repair in Japan after extensive trials, it marked another advance for the ‘rotor tug’ brand incorporating the unique triple Z-drive propulsion system. RT Rob is the first of a series of vessels to be built to a new innovative RT80-32 blueprint resulting from close collaboration between designers KST in Rotterdam and operator Kotug International.

RT-Rob represents the first of a series of vessels to be delivered as part of a fleet expansion and replacement program that will continue until mid 2012.
A tug of 32 metres in length and 12 metre beam, this...

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