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 Reporter April 2015 Digital Edition
FREE Maritime Reporter Subscription
Latest Maritime News    rss feeds

Marine Propulsion

New Ferry Safety Initiative from RINA

Italy-based classification society RINA informs it has launched a ferry safety initiative.    The Asset Integrity Management scheme for ro-pax ferries covers fire risk mitigation,

Korean Register Opens Green-ship Certification Center

The Korean Register informs it has formally opened the Green-ship Equipment Test Certification Center in Gunsan, Jeonbuk, Korea.   This large-scale facility will

GE Gas Turbine to Power USCG Cutter

GE LM2500 gas turbine to power United States Coast Guard‘s eighth National Security Cutter   GE Marine reports that its LM2500 gas turbine will power the United

Ship Repair & Conversion

Bollinger Appoints Sales VP

Bollinger Shipyards announces the promotion of Eric Bollinger to Vice President of Sales.   President and CEO Ben Bordelon made the announcement, stating, “Eric

Hyde Marine to Present on BWTS at Nor-Shipping

Company to Share Seamless Integration of Ballast Water Treatment System (BWTS); Experience in Retrofits for Small Footprint Installations at Nor-Shipping Maritime

Alewijnse Success at Damen Shiprepair Dunkerque

Electrical system integrator Alewijnse Marine Systems is celebrating the first anniversary of delivering electrical services and maintenance to vessels at Damen Shiprepair Dunkerque.

Container Ships

Chevron Hires Viking Princess

Eidesvik Offshore has signed a contract for 19 months with Chevron UK employment for one platform supply vessel (PSV) Viking Princess.    The vessel will be

Wärtsilä Bags BWM Systems Order from Jinhai Shipyard

Wärtsilä Corporation, has received an order for ballast water management systems (BWMS) for three new container ships being built for a major European shipping

CMA-CGM to Call Port of Baltimore

International container shipping company CMA-CGM of France announced that it will begin service within the next couple of weeks to the Helen Delich Bentley Port of Baltimore.

Underwater Engineering

Executive Changes at Transocean

Transocean Ltd. today announced that, as mutually agreed with the company, Esa Ikaheimonen is stepping down as Executive Vice President and Chief Financial Officer effective immediately.

VIKING’s Top Safety Offerings at Nor-Shipping

Marine safety equipment leader VIKING Life-Saving Equipment will appear in force at Nor-Shipping 2015, displaying both innovative products and services that

Keel Laid for Russia’s Next Generation Icebreaker

The world’s biggest nuclear-powered icebreaker keel laying ceremony took place of at the Baltic Shipyard on 26 May 2015. Heads of Atomfflot, the Baltic Shipyard

 
 
Maritime Careers / Shipboard Positions Maritime Contracts Naval Architecture Offshore Oil Pipelines Pod Propulsion Salvage Ship Simulators Sonar Winch
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: 0.2238 sec (4 req/sec)