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Jensen is busy with new designs

27 Jan 2012
Three more tugs are to be built to the same Jensen design as the Capt Jimmy T Moran.

Three more tugs are to be built to the same Jensen design as the Capt Jimmy T Moran.

Jensen Maritime Consultants, a Crowley Maritime Corp subsidiary, has been busy of late with in-house work on the new ‘Ocean’ class for its parent company plus tug designs for Moran, and Caribbean TugZ .

The company has completed the design of three additional tugboats for the Moran Towing Corp, a New Canaan, tug and barge operator on the US East and Gulf Coasts. The additional vessels will bring Moran's Jensen designed series of tugs to five. Construction of the new vessels is currently underway at the Washburn & Doughty Shipyard at East Boothbay, Maine and delivery is scheduled for the second and third quarters of 2012.

The trio are virtually identical in design to two earlier Jensen designed ASD tugs,

the Capt Jimmy T Moran and the Shiney V Moran, built in 2008 and 2009 respectively, with the exception of some internal modifications. Those changes are to ensure that the piping and electrical systems are consistent with Moran's existing fleet of tugs and barges.

Jensen's vice president Johan Sperling said, "Moran asked us to design three more of these tugs because they were so impressed with their maneuverability and compact power. We are pleased to continue our relationship with Moran and to contribute to their ship assist and escort fleet with more of these highly capable vessels."

At 26.21m in length and 10.97m in breadth, Jensen has designed this series of tugboats

to provide a maneuverable and powerful fleet for ship assist and escort work on the East Coast. Equipped with twin Schottel 1215 azimuthing propulsion units powered by MTU-DD 16V4000 engines, the tugs have more than 5,000 horsepower at their disposal. A deep skeg forward is included in the design for escort work, but the skeg is open at the aft end to allow for better maneuverability. The skeg also helps provide a more stable platform when underway, reducing rolling at sea.

An escort/towing winch will be installed forward and ‘H’ towing bitts and a hydraulic

capstan aft for towing over the stern and line handling.

Large machinery removal hatches are provided in the main deck and deckhouse to allow for easy removal of equipment from the engine room. Berths will be provided for six crewmembers in four comfortable staterooms.

Jensen Maritime Consultants has recently started work on the design of two 28.04m ASD tugs for Caribbean TugZ, an affiliate of Seacor Holdings Inc, for operation in the Caribbean and Gulf of Mexico.

The 50 ton bollard pull tugs are being specifically designed with environmental protection in mind. Double skin construction will isolate the oil tanks from the outer hull to reduce the chance of an oil spill in the event of an accident. This feature is neither standard nor mandatory, but was added to protect the environmentally sensitive areas where these vessels will operate. An independent black water tank also minimises corrosion of the hull plating. Adding this custom designed safety feature required Jensen to redesign and alter many areas of the vessels' basic structural design and piping systems.

Great Lakes Shipyard in Cleveland will build the tugs for Caribbean TugZ, which will fulfill a wide range of operational demands, including shiphandling, tanker escort, and emergency firefighting duties. Each vessel will be powered by a pair of Caterpillar C280-6 Tier II diesels rated at, 2,320 bhp at 900 rpm each, coupled to Rolls-Royce US 205FP azimuthing propulsion units with 2,380mm diameter propellers. This package will give each tug an estimated free running speed of 12 knots.

JonRie will supply a double drum winch for the foredeck of each vessel for shiphandling.

Both tugs will feature full fire fighting capability to FiFi 1 standard with a pair of 5,200 gal/pm monitors equipped for water/foam.

Images for this article - click to enlarge

Three more tugs are to be built to the same Jensen design as the Capt Jimmy T Moran.

Unless otherwise stated, all images copyright © Mercator Media 2014. This does not exclude the owner's assertion of copyright over the material.

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