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

Marine Propulsion

Business is Brisk at Posidonia in Athens

In early June, the shipping community met in Athens, Greece for Posidonia 2014. While the focus in Athens tends to be skewed more toward the night life and after hour parties,

Desulfurization of Exhaust Gases in Shipping

Are shipowners prepared to enter SECA zones?   Due to existing regulations on air exhaust emissions from the International Maritime Organization (IMO), and with

Cummins Reports Revenue Jump in Q2 2014

Cummins Inc. reported its results for the second quarter of 2014. According to the report, second quarter revenue of $4.8 billion increased 7 percent from the same quarter in 2013.

Ship Repair & Conversion

Hyde Marine, Goltens Enter Engineering Agreement

Hyde Marine, Inc., announced today it has launched an agreement with Goltens Green Technologies division to help shipowners determine how to best fit the chemical

Three Share in Navy US$96.8-M Twin-Ship Modernization Contract

The U.S. Department of Defense informs that AMSEC LLC; CDI Marine Co. LLC; and Q.E.D. Systems Inc., (all located in Virginia Beach, Virginia) are each being awarded a cost-plus-fixed-fee/cost-only,

DoD Awards Ingalls 'USS Ronald Reagan' Contract Modification

U.S. Department of Defense (DoD) informs that Huntington Ingalls Inc., Newport News, Virginia, is being awarded a US$13,759,894 modification to previously awarded cost-plus-award-fee,

Container Ships

Diana Containerships Q2 & 1H 2014 Financial Results

Greece-based Diana Containerships Inc., a global shipping company specializing in the ownership of containerships, has reported net income of $0.6 million for the second quarter of 2014,

Danaos Corporation 2Q and 1H 2014 Results

Danaos Corporation ("Danaos") (NYSE: DAC), a leading international owner of containerships, today reported unaudited results for the period ended June 30, 2014.

Marseilles Fos Reports Mixed First Half

First-half container traffic at leading French port Marseilles Fos totalled 583,287 teu – up 7% on the first six months last year - marked by a 10% increase at the deepsea Fos terminals.

Marine Equipment

Hyde Marine, Goltens Enter Engineering Agreement

Hyde Marine, Inc., announced today it has launched an agreement with Goltens Green Technologies division to help shipowners determine how to best fit the chemical

Business is Brisk at Posidonia in Athens

In early June, the shipping community met in Athens, Greece for Posidonia 2014. While the focus in Athens tends to be skewed more toward the night life and after hour parties,

200th Airbus A320 Shipset Loaded for China

The 200th shipset for Airbus’s A-320 final assembly line (FAL) in Tianjin, China, was loaded on to the containership COSCO Hope at HHLA’s Container Terminal Tollerort

Vessels

London Shipping Professionals Weigh in for SPNL Report

The Shipping Professional Network London (SPNL) has  released their full Future London report, an initiative that gathered the views and opinions of London’s young

U.S. Marshalls Ordered to Seize Kurdish Oil Cargo off Texas

Acting on a request from the central government in Iraq, a U.S. judge has signed an order telling the U.S. Marshals Service to seize a cargo of oil from Iraqi Kurdistan

Aker Philadelphia Shipyard ASA: Purchase of own shares

Aker Philadelphia Shipyard AKPS), a leading U.S. commercial shipyard constructing vessels for operation in the Jones Act market, has on July 25, 2014 purchased 1,

Underwater Engineering

North Sea Atlantic Joins the Technip fleet

On Saturday July 26, 2014, a ceremony was held in Bergen to officially name the latest new subsea construction vessel to join the Technip fleet, the North Sea Atlantic.

Search for Flight MH370: Update

Australia's Joint Agency Coordination Centre (JACC) says that a bathymetric survey of the 60,000km2 search area is well underway, with two vessels, the Australian-contracted

Rosneft Starts Up Field Work in the Kara Sea

On July 24 this year, research vessel Geolog Dmitry Nalivkin sailed from Kirkenes (Norway) to the Kara Sea. In the next three months 2D seismic survey, will

 
 
Maritime Careers / Shipboard Positions Offshore Oil Pipelines Pod Propulsion Port Authority Salvage 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: 0.1152 sec (9 req/sec)