Damen Shipyards, headquartered in The Netherlands, has just secured an order for no less than fourteen ship-handling tugboats from the Kuwait Oil Company (KOC) nine of them to their latest ASD TUG 3212 design, and five to their better-known 2810 design. The new 3212 tugs, designed to push, pull and tow, will be assisting tankers at nearshore loading terminals and will also be equipped with a powerful fire-fighting system for station at the new single point moorings further offshore Kuwait.These vessels, due for delivery from Damen Shipyards Galati in Romania in 2014, have been tailored to meet KOC’s requirements, but the design features of Damen’s standard version of the optimised model 3212, with its stronger 80 ton bollard pull are the focus here.
Damen Shipyards ASD TUG 3212:Image courtesy Damen Shipyards
New Hull FormAt 32.70m in length overall, 12.82m beam, a draft aft of 5.6m and a displacement of approximately 800 tons the ASD Tug 3212 has a completely revised hull... [More]
Construction of the propulsion system of Europe’s first hybrid tugboat was announced at the International Tug and Salvage Conference on 17, May 2011 in Antwerp, Belgium, by Canada-based innovatory engine designers and builders Aspin, Kemp and Associates (AKA) in partnership with Dutch tug operators KOTUG International, whose Port of Rotterdam stationed tug RT Adriaan is due to be retrofitted with AKA’s proprietary ‘XeroPoint Hybrid Propulsion System’.Harbour tugs like RT Adriaan perform a wide variety of tasks across the entire power spectrum, typically including periods of 'Stand-by for pilot’s orders', short transit passages, and then bottom-line ship berthing and un-berthing operations. Opportunities for continuous engine working at or near the high power levels that give optimum diesel engine efficiency come but rarely, indeed operational analysis has shown that tugs of this type operate at low engine loads most of the time.
RT Adriaan: Photo... [More]
Fleet tugs rescued hundreds of ships in combat, bad weather
Can we help save this one?
By Edward Lundquist
During a recent visit to the Hampton Roads Navy Museum (www.hrnm.navy.mil/) co-located at Nauticus (www.nauticus.org) in Norfolk, Va., I saw a World War II-vintage ocean-going “fleet tug.” My first ship was a fleet tug, and I can’t help but notice when one is in the same harbor that I’m in. In this case, it was at the end of the same pier I was on.
I walked down to get a closer look. There was a gentleman throwing breadcrumbs at the sea gulls. I walked closer to take in the familiar lines that only a fleet tug sailor would admire. The gentleman and I acknowledge each other, and I ask if I can come aboard. He says, “It depends. Are you a visitor or a guest?” I look at him and say, “Harry?” He says, “Ned?”
Harry Jaeger and I both served on fleet tugs—designa... [More]
Tags: Navy, Navy, ship, ship, tug, tug, Zuni, Zuni, Tamaroa. towing, Tamaroa. towing, diving, diving, salvage, salvage, Coast Guard, Coast Guard, fleet tug, fleet tug, ATF, ATF
Carnival cruise liner Carnival Splendor was left drifting helplessly about 55 miles off the Baja California coast after being disabled by an engine-room fire on 8, November 2010, with 3,299 passengers and 1,167 crew on board. Fortunately powerful sea-going tugs, among them the tugboat SMBC Monterrey, stationed not far away at the Costa Azul, Mexico, LNG terminal, were on hand to help tow the stricken Carnival Cruise liner to San Diego. Indeed the tow made such rapid progress that it was possible to disembark the unhappy passengers on US soil instead of the nearest Mexican port of refuge.Towing the giant 113,300 gt, 952 ft cruise liner, would pose problems for many tugboats, especially in Pacific Ocean swells, but not for the powerful SMBC Monterrey, built in the UNV shipyard in Valencia, Spain, around Markey Machinery's DESDF-48WF high-speed, 760-hp double drum waterfall-type electric hawser winch.According to the online Maritime Reporter in August 2009 in an article 'Push and Pull', t... [More]
At the recent International Tug & Salvage Conference in Vancouver details of a new hybrid tug was presented with the triple propulsion modes of diesel electric, battery and fuel cell claiming to give a 67 per cent emission savings over conventional diesel operation. Aim of this particular Hybrid Electric Tug design is to provide an operating mode of zero emissions for the majority of the tug's duty profile during low power operation up to 35 per cent of full power: this includes transits at a cruising speed of about nine knots. Based on a current conventional 24-m hull design developed by Capilano Maritime Design Ltd. with 55-tonne bollard pull, a more powerful 70-tonnes bollard pull version would only require minor changes to the hull and propulsion drives with an increase in battery capacity with diesel generator and fuel cell systems remaining unchanged. Four fuel cells of the PEM type are specified giving a total continuous power output of 600kWe, representing 17 per cent of power. There is a 1,000 kW-h capacity Li-Ion battery system which allows a combined power output of 1,250 kWe. A storage capacity of 1,200 kg of hydrogen provides an endurance of about 40 hours at full power, sufficient to allow refueling intervals of about once per week. [More]