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 October 2014 Digital Edition
FREE Maritime Reporter Subscription
Latest Maritime News    rss feeds

Marine Propulsion

An Efficient Addition to a Strong Fleet

Cvitanovic towing of Belle Chasse, Louisiana has taken delivery of a fourth vessel for its fleet of highly efficient Lugger-style tugs. Built at the Rodriguez yard in Bayou LaBatre,

US Orders Trawler with Common-Rail Technology

Tier II-compliant 32/44CR technology to deliver fuel efficiency, low emissions and improved productivity   MAN Diesel & Turbo has received an order for an MAN

Sea Star Line: Equipment Replacement Plan on Track

Company Receives New Refrigerated Containers and Places Order for New Genset Equipment   Sea Star Line, LLC began receiving the first of its new 100 40’ and 45’

Ship Repair & Conversion

Dutch Yards May Need to Rethink Contract Structures

Rotterdam-based law firm AKD said a recent decision of the Dutch courts means that shipyards in The Netherlands may no longer be able to rely on the right to retain

Andrews to Lead CWind’s O&M Division

Lee Andrews has been appointed as CWind’s new global head of operations for maintenance and asset management (O&M) services.   Andrews joins CWind from Siemens

Seaspan Shipyard's Prompt Response to Canadian Coast Guard

Seaspan Shipyard’s long-standing relationship with the Canadian Coast Guard was proudly showcased in recent days, with simultaneous repair and maintenance work

Container Ships

US Port Congestion Hides Deeper Issues

Ports on the U.S. West Coast are currently suffering from chronic congestion, but are there deeper issues affecting their performance?   Drewry’s new report Container

Hamburg Cargo Volumes at Record High

Seaborne cargo throughput of 110 million tons in the first nine months sets new record for Port of Hamburg    With total throughput of around 110 million tons,

Rates Increase Boosts Diana Containerships Q3 Income

Diana Containerships Inc. reported net income of $1.4 million for the third quarter of 2014, compared to a net loss of $0.7 million for the respective period of 2013.

Marine Equipment

Cathelco BWTS Receives AMS Approval

Cathelco Ltd. has received Alternate Management Systems (AMS) acceptance from the U.S. Coast Guard for their ballast water treatment system.   AMS acceptance

An Efficient Addition to a Strong Fleet

Cvitanovic towing of Belle Chasse, Louisiana has taken delivery of a fourth vessel for its fleet of highly efficient Lugger-style tugs. Built at the Rodriguez yard in Bayou LaBatre,

Dometic to Debut New Product Line at Workboat

New products on display will include the Dometic Cup Cooler, the Smart Touch Integrated Intelligence Control system and the Dometic Sea Xchange watermakers; attendees

Vessels

An Efficient Addition to a Strong Fleet

Cvitanovic towing of Belle Chasse, Louisiana has taken delivery of a fourth vessel for its fleet of highly efficient Lugger-style tugs. Built at the Rodriguez yard in Bayou LaBatre,

Ferus Smit to Launch Newbuild Bulk Carrier

Ferus Smit will launch newbuild general bulk cargo vessel Arklow Brave on Friday, December 12, in Westerbroek.   Arklow Brave is the fifth vessel in a series

LR to Class Maersk Supply Service Anchor Handlers

The six vessels (plus four options) placed in the Norwegian yard will be assigned Lloyd’s Register (LR) class notations 100A1, Offshore Supply Ship AHTS, Fire Fighting Ship 1 (2400),

Underwater Engineering

Sapurakencana Wins 3 Petronas Oil blocks

SapuraKencana Petroleum Berhad today announced that it has entered into Sale and Purchase Agreements to acquire the entire interest of PETRONAS in 3 blocks offshore

Time-out for Kwanza Drilling

Statoil has decided to cancel the Stena Carron rig contract after fulfilling the work commitments in the Statoil-operated blocks 38 and 39 in the Kwanza basin offshore Angola.

EMGS to Map Brazil's Gas Hydrates

Electromagnetic Geoservices ASA (EMGS) has received a contract worth USD 1.5 million for a research project in Brazil. The project will use 3D EM data to map

 
 
Maritime Contracts Naval Architecture Offshore Oil Pod Propulsion Port Authority Ship Electronics Ship Repair Ship Simulators Shipbuilding / Vessel Construction 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: 0.2981 sec (3 req/sec)