Marine link
 
Articles - Ship Repair - History

New Towboat Built on Old Hull

Stewart & Stevenson Services, Inc., based in Harvey, La., has delivered a towboat, Espiritu Paraguayo, to Asuncion, Paraguay to Navegacion Paraguaya Americana S.A., a company affiliated with the South American barge line ventures of Allen Mott.

This is the third towboat purchased by Mott from Stewart & Stevenson, and the fourth towboat powered by Electro- Motive Division of General Motors (EMD) engines by S&S for Mott and Mott's affiliates.

Espiritu Paraguayo was completed using the hull of Senator Eastland, previously owned by Brent Towing Co., Inc., Greenville, Miss., which burned in 1989 on the Arkansas River.

After the fire, the vessel was towed to Superior Boat Works, Inc., in Greenville, and the machinery and deckhouse was removed and the hull was painted and stored. In 1997, S&S purchased the hull, along with new rudders and propeller shafts, as well as the old propellers. S&S commissioned Design Associates, Inc., to do a powering study of the vessel, which concluded it could be rebuilt and repowered as a 5,400 hp towboat.

S&S subcontracted with Halter Marine, Inc., to do the detailed design and to repair the hull, then complete the boat in an "all new" condition. The hull was towed to Halter Gulf Repair in New Orleans, and drydocked. Audio gauge readings of the hull revealed the hull was in "like-new" condition. Gridcooler boxes were changed, and some added, and the channel coolers for the generators were lengthened.

Sea chests for the special firefighting equipment and watermaker were added. New, larger strut barrels were installed. All new bearings were installed in the rudder and flanking rudder trunks. New bearings were installed in the strut barrels and stern tubes, new Johnson Air Seal packing glands were installed and new Cooper split bearings were installed on the intermediate shafts.

Additionally, a new pair of Bollinger 102 x 98 in. stainless steel four-blade propellers, with 90 percent developed area ratio was installed. New rudders were installed, as were new Fernstrum gridcoolers, and the hull was sandblasted and painted. The hull was refloated and towed to Halter Marine, Inc., in Lockport, La.

When the hull arrived, the interior was prepared for some changes and the machinery was installed. A pair of Lufkin Model RHS 3020 reverse-reduction gears, with 3.75:1 ratios were installed, and then a pair of remanufac- July, 1999 tured EMD 16-645EC turbocharged engines to produce 2,720 hp each at 800 rpm.

Finally, two Detroit Diesel 8V71N, 115 kW generator sets were installed. After installation of the machinery and major piping, the deckhouses were installed on the hull, and outfitting began. An entirely new steering system was installed, with all new tillers, jockey bars, pins and hydraulic equipment designed by Skipper Hydraulics, Inc., of Harvey, La.




Ship Repair History

ABB Turbocharger Repairs VTR..4 Turbine Blades
Ailsa-Perth: from sunset to sunrise
Alaskan Oil Issue Lingers
BethShip Sparrows Point Expands Orderbook
BoatLIFE Offers Deck Protection Experience, Products To Cruise Ship Industry
Del Gavio Marine Hydraulics, Inc.
Drew Ameroid Marine Forms CFC Conversion Alliance With York Marine Systems
DUBAI: Tops For Tankers
Goltens Expands Capacity W i t h N e w Grinder
Heightened Environmental Pressures, Rising Freight Rates Buoy Ship Repair Industry Announces New Contracts
HHI Starts ' 97 Strong Korean yard wins bulker contract from Norway's Bergesen to start year
Klattenberg Marine Agency Helps Link Shipowners With Spare Parts, Yards
Lisnave Reports Upbeat Quarter; Discusses Future Plans
Lisnave Wins Multi-Million$ Contract
Mackay's World Me Department: Local sendee on a global scale
Norshipco Repairs Navy Swath Ahead Of Schedule
Orkot Helps Repair Iceberg Damage To Tanker, Overseas Okie
Petrobras Block Booking For ASRY
Practical Guide to the Year 2000 Problem
QE2 Refit Completed In Southampton
Renovation Of Inland Service Tug Completed
Ship Repair & Conversion '93
SHIP REPAIR & CONVERSION: Review of 1994
Ship Structure Committee Publishes Reports On Fatigue Curves And Underwater Repair Procedures
Shipbuilding in South Korea… Expansion Continues
Tenf jord/Cunningham Marine/Marserv
The Need To Rationalize Navy ship Maintenance Capacitu
U.S. Northwest: Ship repair Activity Picks Up
Vietnam Government Approves Keppel/BaSon Joint Venture Shipyard
Welding Technique Helps Navy Save Millions
 
rss feeds | archive | privacy | history | articles | contributors | top news | contact us | about us | copyright