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

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’

MacGregor's Hatlapa Brand is 95 Today

November 2014 marks the 95th anniversary of MacGregor's Hatlapa brand. Since its foundation in 1919 by German engineer Max Hatlapa, the formerly independent Uetersen-based

Pair of ASD Tugboats Delivered to Keppel-Smit

The ASD tugs KST Passion and KST Pride were were delivered to their owner, Keppel-Smit Towage Pte. Ltd of Singapore in October 2014. The two vessels are the first

Container Ships

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’

October Imports up 9% at Port of Oakland

Containerized imports shipped through the Port of Oakland were up 9.17% in October from a year ago, the port said, citing the surge as the biggest jump in import cargo volume in six months.

Video: Reefer RoRo Ship Design Rebooted

Expanding on the Reefer RoRo Ship design release in September last year, naval architects group Knud E. Hansen A/S has continued the development of the new Reefer RoRo Ship design with version II.

Marine Equipment

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.

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’

Deepwater Semi-Sub COSL Prospector Delivered

COSLProspector, the fourth deep-water semi-submersible drilling rig built by CIMC Raffles for China Oilfield Services Limited (COSL), has been delivered in Yantai, Shandong Province.

Vessels

USS Oscar Austin Deploys to 6th fleet

Arleigh Burke-class guided-missile destroyer USS Oscar Austin (DDG 79) departed Naval Station Norfolk Nov. 21 for a deployment to the U.S. 6th Fleet area of responsibility (AOR).

Orlando Ashford is President, Holland America Line

Holland America Line announced today that effective Dec. 1 Orlando Ashford will join the company as president to lead the award-winning cruise line's brand and business,

Bouchard Vessels Honored by SCA

Forty-three Bouchard Transportation Co., Inc. vessels have been honored by The Chamber of Shipping America (CSA) with Certificates of Environmental Achievement.

Underwater Engineering

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

Rosneft Completes Geological Survey

Rosneft reports on 100% completion of the geological survey program on Company's offshore license areas for 2014. In the current year geological survey covered

 
 
Maritime Contracts Maritime Standards Naval Architecture Navigation Offshore Oil Pod Propulsion Salvage Ship Repair Ship Simulators Shipbuilding / Vessel Construction
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: 0.1342 sec (7 req/sec)