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.


Marine Propulsion

MN100: Reintjes GmbH

The Company: Founded in 1979, Reintjes GmbH is an independent propulsion technology company that manufactures thousands of gearboxes annually. More than 90,000

Rotor Sail Development Gets a €2.6 Mln Boost

Norsepower Oy Ltd., the leading provider of low maintenance, software operated, and data verified auxiliary wind propulsion systems, has been selected to receive €2.

Lucas Marine, Harbor Breeze Cruises Partner to Cut Fuel Costs

Lucas Marine is partnering with Harbor Breeze Corporation to help reduce the yacht charter and cruise company's fuel costs, maintenance and environmental impact in Los Angeles and Long Beach Harbors.

Ship Repair & Conversion

Royal IHC Upgrades TSHD Pump for Van Oord

Royal IHC informs it has completed the upgrade of the underwater pump and jet water system on trailing suction hopper dredger (TSHD) VOLVOX TERRANOVA for Van Oord.

Five Minutes with Paul Switzer

Five minutes with Paul Switzer - Manager, Shipbuilding & Offshore, Viega   For readers not familiar with Viega, please give a ‘birds eye’ view, putting the company

MN100: Metal Shark Boats

The Company: Metal Shark is a leading shipbuilder specializing in the design and production of boats and ships for military, law enforcement, fire rescue, and

Container Ships

APL Strengthens Asia-Europe Service Network

APL today announced the launch of a new weekly service - the India Pakistan Europe (IPE) Service, directly connecting the key South Asian markets of India and Pakistan to major ports in Europe.

BG Freight Line Orders Four Containerships

BG Freight Line, a fully owned subsidiary of Peel Ports Group, is to receive new tailor-made short sea container feeder vessels optimized for the company’s Irish Sea Hub services.

Mobile Crane for ICTSI Congo

Matadi Gateway Terminal (MGT), the new container and general cargo terminal on the Congo River, DR Congo, has received the first of two new mobile cranes scheduled to go into service at the terminal.

Marine Equipment

Royal IHC Upgrades TSHD Pump for Van Oord

Royal IHC informs it has completed the upgrade of the underwater pump and jet water system on trailing suction hopper dredger (TSHD) VOLVOX TERRANOVA for Van Oord.

ACE Winches Bags Order from Vard

Deck machinery specialist ACE Winches said it has been awarded a spooling contract with Vard Group AS for Norway’s largest construction vessel.   The scope of work includes the spooling of two 3,

Five Minutes with Paul Switzer

Five minutes with Paul Switzer - Manager, Shipbuilding & Offshore, Viega   For readers not familiar with Viega, please give a ‘birds eye’ view, putting the company

Vessels

Fednav Welcomes Innovative Ballast System at Indiana Port

Fednav Limited, the largest international bulk shipowner in Canada, welcomed to the Port of Indiana-Burns Harbor, the Federal Caribou, one of seven new oceangoing

European Owners Lead in Buying Up Secondhand Tonnage

With European owners leading the pack in buying up vessels, the sale and purchase market appears to have been notably active in recent years, reveals Clarkson Research Services Limited.

Pods Versus Water Lubricated Props

Thordon Bearings has called on the marine industry to investigate the characteristics of both conventional seawater-lubricated propeller shaft systems and podded

Underwater Engineering

Fugro, US Army Corps of Engineers Ink Mapping Deal

Fugro has been awarded a photogrammetric and LIDAR surveying and mapping contract by the U.S. Army Corps of Engineers, St. Louis District, Missouri. The agreement

Next Geosolutions Surveys Roman Ports

Next Geosolutions, an independent geoscience and engineering service provider, has secured a €1.25million (£1million) mapping and survey contract with Naples Port

First ISDS for DNV GL Classed Ocean Greatwhite

DNV GL has welcomed the world’s largest semi-submersible drilling rig into class recently. Ocean Greatwhite is 123 metres long and 78 metres wide and was delivered

 
 
Maritime Contracts Maritime Security Naval Architecture Navigation Salvage Ship Electronics Ship Repair Ship Simulators Shipbuilding / Vessel Construction 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: 0.1881 sec (5 req/sec)