Shipbuilding. Energy. Transport

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Shipbuilding. Energy. Transport Maritime Market magazine

Press Release

A hat-trick for KOTUG: green power ahead with hree hybrid Rotortugs (E-KOTUG series)

March 30st 2015, the ART 80-32 Hybrid Rotortug RT Emotion was handed over from Damen Shipyards Group to her owner Elisabeth Ltd. On April 16th 2015 RT Emotion sailed from Rotterdam to Bremerhaven on one electric motor in full hybrid mode, where she will start her operations for KOTUG’s European harbour towage division. Sister tug RT Evolution commenced her operations in the Port of Rotterdam on December 1st, 2014.

KOTUG’s CEO Ard-Jan Kooren stated: “We are proud that our active green policy resulted in three fully classed E-KOTUG series of hybrid Rotortugs RT Adriaan, RT Evolution and RT Emotion! The hybrid tugnology provides economic advantages by a very efficient and eco-friendly sailing profile, optimizes working conditions for the crew and minimizes harmful emissions.”

Seen as a true advancement of hybrid technology and performance, the propulsion configuration draws on the proven design of KOTUG’s RT Adriaan – world’s first hybrid Rotortug® built under class. The green results of the E-KOTUG series are 50% reduction of harmful emissions, significant noise reduction, cleaner combustion and substantial maintenance savings thanks to improved fuel economy. The Rotortug’s hybrid capacity is generated by three electric motors, complemented by a battery pack and managed by an intelligent XeroPoint Hybrid Propulsion System.

“Both Damen and KOTUG made a lot of effort to take this step in Hybrid Tug evolution. The result, two beautiful vessels with excellent performance and low emissions and fuel consumption, is something to be proud of” explains Damen Area Manager Benelux Mijndert Wiesenekker.

Both 32- metre hybrid next-generation ART80-32 Rotortugs® are new Damen-built tugs and designed by an alliance of Rotortug B.V. in the Netherlands and Robert Allan Ltd in Canada. Evan Willemsen of Rotortug explained: “With the evolved redesign of the Rotortug, the symbol changed from RT into ART: Advanced Rotortug. The numbers 80 and 32 respectively stand for the bollard pulling force and the length of the tug.”

The optimised hull shape of the ART80-32 generation Rotortug allows ahead and astern speeds of well over 13 knots. In terms of bollard pull, 84 tonnes over the stern and 82 tonnes over the bow is achieved. The advanced design concept benefits from improved versatility, flexibility, and the ability to respond very quickly to changes in maneuvering requirements. The end result is a user-friendly, highly responsive tug, with focus on safety.

Through a process of ongoing development, KOTUG, Rotortug and Damen continue to make major contributions to achieve the ‘zero LTI’ status. Combining extensive knowledge and experience, all parties strive to provide the best tug for the job. As a result the RT Evolution’s and RT Emotion’s maneuverability, strength and flexibility provide operators a high-level of operational safety under all conditions.

KOTUG is a leading towage operator offering its innovative services on a global scale. KOTUG operates in a variety of markets including towage services to ports, terminals and at sea as well as in the salvage, offshore and dredging industry. KOTUG is committed to the highest industry standards of health, safety, environment, quality and security.

More information:

About Rotortug B.V.
Rotortug B.V. is the company specializing in the design and marketing of the world wide patented Rotor tug design. The Rotortug® distinguishes itself from the conventional ASD, Tractor or Voith Schneider designs by using a triangular propulsion configuration. The excellent maneuverability of this type of tug is superior to all other conventional designs. The Rotortug® has been recognized as the preferred tugboat design in many port over the world.


Please see Damen Shipyards Group company electronic office

Damen Shipyards Group operates 32 shipbuilding and repair yards, employing 9,000 people worldwide. Damen has delivered more than 6,000 vessels in more than 100 countries and delivers some 180 vessels annually to customers worldwide. Based on its unique, standardised ship-design concept Damen is able to guarantee consistent quality.
Damen’s focus on standardisation, modular construction and keeping vessels in stock leads to short delivery times, low ‘total cost of ownership’, high resale values and reliable performance. Furthermore, Damen vessels are based on thorough R&D and proven technology.

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