Underwater Bow Thruster Reinstallation In Tacoma

Marinelink.com
Thursday, July 18, 2013

Three months after Hydrex diver/technicians removed the bow thruster of a 294-meter container vessel in Tacoma, a Hydrex team once again mobilized to this location to reinstall the overhauled unit underwater with the use of the Hydrex flexible mobdock.


The superintendent of the ship was very satisfied with the first part of the operation. The job was completed well within the available time frame thanks to good team work of the Hydrex divers, the ship staff and the floating crane operator.

 

For this reason the customer asked Hydrex to take care of the reinstallation as well, which was carried out last month.


Together with all the necessary equipment, the team mobilized from the Hydrex office in Clearwater, Florida to the vessel’s location. After they set up a monitoring station on a workboat, the team positioned the bow thruster onto a cradle.

 

This cradle was designed especially for thruster operations. It can be adjusted to the size of the unit. In this manner the thruster is prevented from tipping over, making it much easier to handle. The Hydrex divers could lower the unit into the water and maneuver it inside the thruster tunnel in one take. The team positioned the bow thruster and secured the unit.


The team then used the lightweight flexible mobdocks developed by Hydrex to close off the thruster tunnel on both sides. This allowed the diver/technicians to evacuate all the water from the tunnel and create a dry working environment around the bow thruster. The thruster propeller blades were then reinstalled one by one. The team completed the operation by reconnecting the thruster unit to the engine room.


Hydrex can assist shipowners with almost any problem they encounter with their vessel’s thruster. A wide range of repair or maintenance work can be carried out to all types of thrusters. An entire unit can be overhauled, propeller blades or seals can be replaced or repair work on a specific part of a thruster can be performed by Hydrex diver/technicians on site. All of these repairs can be carried out without the need to drydock the vessel.


Off-hire time causes a substantial loss of money. The teams therefore worked in shifts during both the removal en reinstallation of the bow thruster. This was done to perform the bow thruster operations within the shortest possible time frame, saving the owner the time and money which going to drydock would have entailed.
 

Maritime Today


The Maritime Industry's original and most viewed E-News Service

Maritime Reporter May 2016 Digital Edition
FREE Maritime Reporter Subscription
Latest Maritime News    rss feeds

Marine Propulsion

MAN 28/33D STC Engines for Thai Navy’s New OPV

The Royal Thai Navy has ordered a new 90-m offshore patrol vessel (OPV) to be constructed at Mahidol Adulyadej naval dockyard in Sattahip.  The newbuilding, an improved River-class design,

Norsafe Debuts New RIB in Gothenburg

Norsafe has released its first RIB, the Marathon 900, to compliment its range of boat models for professional and military customers.  Launched at High Speed

Wärtsilä Donates Engine to Texas A&M University

Wärtsilä has donated an 8-cylinder Wärtsilä 20 engine and generating set, to the Marine Engineering Technology Department at Texas A&M University at Galveston.

Ship Repair & Conversion

Hansa Offenburg, Hansa Drakenburg Sail Scale-free

Leonhardt & Blumberg was founded in 1903 and has managed more than 180 vessels, the majority of which were general cargo vessels and bulk carriers. Today the company

Haven Marine Signs Service Contract with Svitzer

Haven Marine Services informs it has signed a five year contract with Svitzer which will see the yard service the requirements of Svitzer’s vessels within the Bristol Channel and Irish Sea areas.

BWTS Refit for Netherlands Naval Vessels

The Defense Material Organization has awarded three contracts to Goltens Worldwide’s Green Technologies business unit for the engineering and turnkey installation

Container Ships

Hansa Offenburg, Hansa Drakenburg Sail Scale-free

Leonhardt & Blumberg was founded in 1903 and has managed more than 180 vessels, the majority of which were general cargo vessels and bulk carriers. Today the company

Portugal PM Warns Lisbon Dock Workers to End Strike

Portugal's prime minister warned Lisbon dock workers on Friday that his patience was running out after a strike that has lasted a month, paralysing the city's ports.

Asia-N.Europe Box Freight Rates Soar 37 pct

Freight rates for shipping containers from ports in Asia to Northern Europe jumped 37 percent to $720 per 20-foot container (TEU) in the week ending on Friday,

Underwater Engineering

Technip Bags Statoil's Umbilical Supply Contract

Technip’s wholly-owned subsidiary Technip Umbilicals Ltd.(1) has been awarded a contract by Statoil ASA to supply the umbilical(2) to the Oseberg Vestflanken 2 field offshore Norway.

Damen Unveils Multi-role Utility Vessel

Work is due to start shortly on the first of a new class of Damen utility vessel UV2410.   This multi-role platform is the result of extensive consultation with

Wood Group Bags Statoil MSA

Wood Group has been awarded an evergreen master services agreement (MSA) by Statoil to support the life cycles of its offshore  and onshore facilities. Work and

 
 
Maritime Careers / Shipboard Positions Maritime Contracts Naval Architecture Offshore Oil Pipelines Salvage Ship Electronics Ship Simulators Shipbuilding / Vessel Construction Sonar
rss | archive | history | articles | privacy | contributors | top maritime news | about us | copyright | maritime magazines
maritime security news | shipbuilding news | maritime industry | shipping news | maritime reporting | workboats news | ship design | maritime business

Time taken: 0.1685 sec (6 req/sec)