Catamaran Survey Vessel Delivered to Global Geophysical Services

Wednesday, April 25, 2007
The 140 ft. catamaran seismic survey vessel Ms. Cordelia was delivered to Global Geophysical Services, Houston, TX. The all aluminum vessel was converted from a prototype high speed low wake passenger ferry that had not been completed or put in service. The conversion design and engineering was done by the naval architectural firm of Guarino & Cox, LLC, Covington, LA. Seacraft Shipyard carried out the conversion work at their facilities in Amelia, LA.

The unfinished vessel was considered an ideal candidate to be converted for its intended use primarily due to the large deck area available and its shallow draft. The MS. CORDELIA will be capable of performing inshore shallow water seismic survey work laying and retrieving cables in as little as 6 feet of water.

The slender catamaran demi-hulls make the vessel extremely fuel efficient at a continuous cruising speed of 12 knots and comfortable in the short steep waves often found in inshore locations. The major modification to the hull form was the removal of the large water jets originally installed and altering the stern lines to utilize conventional propellers in shallow tunnels. A continuous maximum speed of 15 knots is obtained through this arrangement with power provided by two new 700shp Lugger diesel main engines engines.

An operating speed of 2 to 3 knots was a requirement during deployment and retrieval of the special cables used while surveying. This would normally be impossible to achieve with the easily driven catamaran form but the naval architects of Guarino & Cox devised a scheme using oversized independent rudders capable of being splayed outboard up to 60 degrees that deflect the propeller wash and act as water brakes.

Maritime Today

The Maritime Industry's original and most viewed E-News Service

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


Deltamarin to Designs First LNG Handysize Bulk Carriers

Deltamarin Ltd proudly announces that it has signed a contract to design the world’s first LNG handysize bulk carriers, which will point the way towards greener shipping of commodities.

Swan Energy to Invest $845 mln for FSRU Terminal

Swan Energy Limited will invest around Rs. 5,600 crore ($845 mln) towards setting up of Jafrabad LNG Port project in Gujarat with one jetty-moored Floating, Storage and Regasification Unit (FSRU).

Alaska Buys TransCanada AK LNG Stake

The State of Alaska has finalized a deal with TransCanada to buy out the pipeline company's share in the proposed Alaska liquefied natural gas export project for nearly $65 million.

Maritime Careers / Shipboard Positions Maritime Contracts Pipelines Pod Propulsion Port Authority Salvage 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: 0.1859 sec (5 req/sec)