Underwater Bow Thruster Reinstallation

MarineLink.com
Tuesday, July 23, 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 December 2015 Digital Edition
FREE Maritime Reporter Subscription
Latest Maritime News    rss feeds

Marine Propulsion

The Next Generation of Hull Performance Management

Hull performance monitoring solutions can offer significant fuel savings potential, a fact that is prompting growing interest from the maritime industry. To spur

Honda Marine on Display at Miami Boat Show

Honda Marine is set to market its complete range of outboard marine four-stroke engines at the 2016 Miami International Boat Show, February 11-15, 2016.   At this year’s show,

Next Generation Marine Power & Propulsion Conference

The Next Generation Marine Power & Propulsion Conference will be held at the Grand Harbour Hotel, Southampton, U.K. from April 26 to 28, 2016.    This unique

Container Ships

Long Beach sees Robust Container Growth

The Port of Long Beach kicked off the New Year by logging its seventh straight month of cargo increases, showing a 24.8 percent jump in container shipments over the same month last year.

APM Terminals Broaden Portfolio, Business Model

APM Terminals’ increased invested capital to USD $6.2 billion in 2015 as ongoing strategic plans to drive portfolio growth, improve productivity and safety performance, generated USD $4.

Hapag-Lloyd Buys Two Boxships

Hapag-Lloyd has bought two 2015-built, 3,500 teu wide-beam design containerships for deployment in its South America trades for an undisclosed price from NileDutch,

Marine Equipment

Volvo Penta Debuts Innovative Glass Cockpit

The new generation of Glass Cockpit expands Volvo Penta’s collaboration with Garmin for an advanced monitoring and control system that makes boating easier. And its clever application,

Maersk Drilling Posts Record Profit

Maersk Drilling delivered the best result ever with a profit of USD 751m (USD 478m) in 2015 generating a ROIC of 9.3% (7.1%). The result was positively impacted

APM Terminals Broaden Portfolio, Business Model

APM Terminals’ increased invested capital to USD $6.2 billion in 2015 as ongoing strategic plans to drive portfolio growth, improve productivity and safety performance, generated USD $4.

Vessels

Volvo Penta Debuts Innovative Glass Cockpit

The new generation of Glass Cockpit expands Volvo Penta’s collaboration with Garmin for an advanced monitoring and control system that makes boating easier. And its clever application,

Maersk Drilling Posts Record Profit

Maersk Drilling delivered the best result ever with a profit of USD 751m (USD 478m) in 2015 generating a ROIC of 9.3% (7.1%). The result was positively impacted

Rosneft, Pietro Barbaro Form JV for Shipping

Rosneft and Pietro Barbaro S.p.A. signed a Memorandum of Understanding with the scope of creating a Joint Venture (JV) in the area of international shipping. The

Underwater Engineering

Maersk Drilling Posts Record Profit

Maersk Drilling delivered the best result ever with a profit of USD 751m (USD 478m) in 2015 generating a ROIC of 9.3% (7.1%). The result was positively impacted

Neptune Awarded Kitan Contract

Neptune has been awarded an air diving services contract by Technip Oceania Pty Ltd (“Technip”) for the Kitan disconnection project. The project is offshore

Aker Joins Johan Sverdrup Phase 2 Study

Aker Solutions will deliver a concept study on a new processing platform for future phases of the Statoil-operated Johan Sverdrup North Sea field, Norway's largest oil find in three decades.

 
 
Maritime Careers / Shipboard Positions Maritime Contracts Maritime Security Navigation Offshore Oil Pipelines Ship Electronics Ship Repair 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: 0.0845 sec (12 req/sec)