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

Marine Propulsion

GE Gas Turbines to Power US Navy’s New Destroyers

The U.S. Navy’s new DDG 121 and DDG 122 Arleigh Burke-class destroyers will be powered by eight LM2500 marine gas turbines supplied by GE Marine, who also received

First Vessel of New Rescue Class Launched

Global shipping and energy services firm, Craig Group, has launched its first F-Class vessel, the Grampian Fortress. The IMT 958 multi-role emergency response and

Tanker Retrofitted with Dual Fuel Engine

Caterpillar Marine informs it has begin a dual fuel engine retrofit conversion onboard the 472-foot Fure West tanker, owned by Furetank Rederi A/B. The MaK M 43

Ship Repair & Conversion

Renovated Research Vessel Sets Sail

French scientific research vessel completely renovated in life extension project. French research vessel Marion Dufresne II left Damen Shiprepair Dunkerque (part

Renovated Marion Dufresne II sets sail on time

French scientific research vessel completely renovated in life extension project The renowned French research vessel, Marion Dufresne II left Damen Shiprepair

Strategic Marine’s Stock Program Full Power Ahead

Strategic Marine, the specialist shipbuilder and fabricator, has confirmed its stock program of personnel transport vessels is market-ready. “Our stock program

Container Ships

Pentalver Opens London Container Facility

U.K. inland container service operator Pentalver opened a new five-acre site at the U.K.’s newest deep sea container port, DP World London Gateway, the London Port Authority announced.

CMA CGM to Resume Service to Iran

The world's third-largest container shipping group, France's CMA CGM, said on Monday it would resume operations to Iran following the deal between Tehran and world

Diana Charters Containership to Maersk

Container shipping company Diana Containerships Inc. announced that, through a separate wholly-owned subsidiary, it entered into a time charter contract with Maersk

Underwater Engineering

NOIA Applauds Senate Passage of OPENS Act

NOIA President Randall Luthi issued the following statement on the Senate Energy and Natural Resources Committee’s passage of the OPENS Act, which will open new

Nautilus Awards Contract for Dewatering Plant Design

Nautilus Minerals Inc. has awarded a contract for the design of the Solwara 1 dewatering plant to be used on the company’s production support vessel to the Brisbane

New Load Measurement Solution for Port of Dampier

Strainstall designs and delivers a load measurement solution for the world’s largest floating wharf at Port of Dampier.   Strainstall, part of James Fisher and Sons plc,

 
 
Maritime Careers / Shipboard Positions Maritime Security Maritime Standards Naval Architecture Pod Propulsion Ship Electronics Ship Repair Shipbuilding / Vessel Construction 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: 0.5528 sec (2 req/sec)