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

Marine Propulsion

Methanol Powered Ferry Launched in Baltic Sea

Swedish ferry operator Stena Line has announced that it has converted the Stena Germanica to run on methanol, an industry first.   The company spent $24 million on converting the ship to methanol.

MAN Demonstrates Two-Stroke Methanol Engine Concept

MAN Diesel & Turbo successfully demonstrated its ME-LGI concept engine in front of customers and partners at its Diesel Research Center in Copenhagen on March 17th, the company announced today.

Becker Marine at Electric & Hybrid Marine Expo

Becker Marine Systems product presentation at the dutch Electric & Hybrid Marine World Expo will put a strong focus on environmentally-friendly technology for the

Ship Repair & Conversion

Methanol Powered Ferry Launched in Baltic Sea

Swedish ferry operator Stena Line has announced that it has converted the Stena Germanica to run on methanol, an industry first.   The company spent $24 million on converting the ship to methanol.

The Human Element of Ship Management

The best third party ship managers employ technology, good business practices, economies of scale and a customized approach for each client. None of that will

Scandlines Ferry Back in Service by End June

The damaged Scandlines ferry M/V Prinsesse Benedikte is being repaired at the Polish shipyard Remontowa and is expected to be ready before the end of June 2015.

Container Ships

Sea Star Continues Puerto Rico Investments

Sea Star Line, LLC has entered an agreement to on-hire another barge to add to its current service package for shipments from Jacksonville to Puerto Rico.   The

Maersk to Install Transas ECDIS on 100 Vessels

Maersk Line, the world's largest container company, has selected Transas Marine for ECDIS implementation on more than 100 vessels, Transas announced today. The

Syria Taps World Wheat Market as Stocks Run Down

Weeks after Syria said it had no need for wheat imports, the government plans to import 150,000 tonnes and has introduced ways to conserve grain stocks in signs

Marine Equipment

VIKING LifeCraft Presented at IMO

This week, VIKING Life-Saving Equipment took a step towards gaining approval for the VIKING LifeCraft, its alternative life-saving appliance (LSA) for passenger ships.

MARIN, Cruden, Tree C Technology Forge Small Ship Simulator

Severe vibrations and shocks of up to 9G over an average of 1000 hours per year. That’s what instructors of fast small ships such as the Fast Raiding, Interception

Enhancements for Standard 22 Gyro Compass

The German navigation system manufacturer Raytheon Anschütz has announced a new revision of the Anschütz Standard 22 Gyro Compass System. The enhancements improve

Vessels

BMT Expands to Meet Increased Workload

BMT Nigel Gee (BMT), a subsidiary of BMT Group, has announced the completion of new offices in Southampton in order to meet a large increase in design work.   Operating

Enhancements for Standard 22 Gyro Compass

The German navigation system manufacturer Raytheon Anschütz has announced a new revision of the Anschütz Standard 22 Gyro Compass System. The enhancements improve

NYC Ferries: Gladding-Hearn Building Three New Vessels

Gladding-Hearn Shipbuilding, Duclos Corporation, has begun construction of the first of three new sightseeing vessels for Circle Line Sightseeing Cruises, Inc., in New York City.

Underwater Engineering

Keppel FELS Delivers 11th Jackup to Mexico

Keppel FELS Limited (Keppel FELS), a wholly owned subsidiary of Keppel Offshore & Marine Ltd (Keppel O&M), has delivered a KFELS B Class jackup rig to Mexican national oil company,

US Navy to Roll out Underwater Spy Satellites

The robotic series that remade crusade in skies will shortly extend to a low sea, with underwater view “satellites,” drone-launching pods on a sea building and unmanned ships sport submarines,

Statoil: Polarled Pipe-Laying Kicks Off

On 26 March, the Solitaire pipe-laying vessel started on the first stage of the Polarled installation project. The 482-kilometre long pipeline will transport gas

 
 
Maritime Careers / Shipboard Positions Maritime Contracts Navigation Pipelines Pod Propulsion Port Authority Ship Repair Ship Simulators Sonar Winch
rss | archive | history | articles | privacy | terms and conditions | 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: 0.2112 sec (5 req/sec)