DeJong Designs Biggest Voith Schneider Tug Built In United States
The biggest tug with Voith Schneider propulsion units to be built in the United States has been designed by the Jacksonville, Fla., firm of Norman N. De- Jong and Associates, Inc., naval architects and marine engineers.
Destined for ship-handling duties in the Panama Canal, the 105- foot "Water Tractor" is being built by Thunderbolt Marine Industries in Thunderbolt, Ga., for the Panama Canal Company. Delivery is slated for May 1981.
DeJong finished the design and submitted detailed drawings for the tug in November. The project is return business for the firm, it also having designed the multidirectional s h i p - h a n d l i n g tugs built by Thunderbolt for the Canal Company four years ago.
Utilizing unique cyclodial propellers for maximum maneuverability in ship handling, the tug is powered by two 10-cylinder Fairbanks Morse Model 38D 8% diesel engines driving two Voith Schneider Model 2VSP 30 G II cyclodial propellers. The propellers will provide a bollard pull of 80,000 pounds ahead and astern, and 60,000 pounds sideways.
Other major equipment includes two GM Detroit Diesel 6-71/75- kw generators, GM Detroit Diesel 8V71 driven fire pump, Markey hydraulic capstans, and Consolect s w i t c h b o a r d and engine room monitoring system. An extensive engine room acoustical insulation system will keep the noise level in working areas under 80 decibels.
Building on its experience with the Voith Schneider system, De- Jong and Associates is presently d e s i g n i n g two 120-foot Voith Schneider propelled tugs as part of an integrated tug/barge project.
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Content
- Australia Fights Oil Spills With MARCO Class I Skimmers page: 6
- $53.2-Million Contract For Supply Boats Signed By Halter page: 7
- Riverway Shipyard Co. Completes Construction Of 120-Foot Tank Barge page: 7
- Twin Towing/Supply Vessels Delivered By Quality Shipyards page: 8
- Bulletin On New Fuel Oil Blending Unit Available From IMO page: 9
- Australia Receives First Of Four Gas-Turbine-Powered FFGs From Todd Seattle page: 10
- SNAME Los Angeles Section Hears Paper On Noise Control page: 10
- Kockums Sells LNG Ship To West German Consortium page: 10
- Twin-Screw Supply Vessel Delivered By Bender Shipbuilding page: 12
- Three Executive Changes Announced By Ellicott Machine Corporation page: 12
- RYSCO Delivers Another Tug/Supply Vessel To Billy Pugh Offshore page: 14
- APL And Port Of LA. Join To Develop New Container Terminal page: 14
- Electro-Nav To Furnish Electronics Parts And Service For Polish Ships page: 14
- RCA Adds Radiotelephone To Marine Equipment Line —Literature Available page: 16
- Fritz Named Supervisor Of Engineering Computer Operations At J.J. Henry page: 16
- Hitachi To Build Third Jackup Rig For Danish J.L Offshore Drilling page: 18
- J.E. Folsom Named Gulf Region Sales Manager For Hydranautics page: 18
- Simrad Introduces New Microcomputer-Controlled Loran C Navigator page: 19
- Tracor Marine Awarded $8-Million Contract By Rockwell International page: 20
- Joint SNAME/ASNE Meeting Hears Report On SPC Coating page: 20
- Bethlehem's Beaumont Yard Completes Jackup For Temple Drilling page: 21
- Bay Shipbuilding Launches Tank Barge For Hannah Marine page: 22
- Henschel Introduces New Ship's Bell Logger- Literature Available page: 22
- DeJong Designs Biggest Voith Schneider Tug Built In United States page: 23
- National Marine Gets Title XI Approval On $38.5-Million Orders page: 24
- Dravo Corporation Seeking To Acquire Ryan-Walsh Companies page: 26
- MARCO Seattle Christens New North Pacific Fishing Vessel page: 26
- Halter Delivers Two Crewboats For Service Offshore Brazil page: 28
- New Color Brochure On Escher Wyss Props Available At No Cost page: 28
- MSC Will Charter Sun Transport's New Product Carrier 'New York Sun' page: 28
- Belcher Towing To Add Powerful Docking Tug To Its Miami Fleet page: 29
- Heavy-Lift Derrick Barge Can Lift Up To 400 Tons page: 32
- Ingalls Awarded Fourth Keyes Offshore Contract For Jackup Drilling Rig page: 32
- Jacksonville P.A. To Spend $25.5 Million To Expand Blount Island Facility page: 32
- Wheelock Maritime Ltd. Orders Two Bulkers From China Corporation page: 33
- Norwegian Firm Offers New Control Option For Ship-Handling System page: 33
- Ingalls Shipbuilding Promotes Three To Vice Presdent Posts page: 34
- New Searchlight Announced By Phoenix Products- Literature Available page: 34
- McDermott Acquires Welding Equipment And Technology From Price page: 34
- McNab Announces Fuel Management System- Literature Available page: 34
- $7.7 Million Authorized For Improvements At Newport News Terminal page: 35
- Worthington Establishes Pump Specialty Shop For Replacement Parts page: 36
- A r e n d a l Y a r d Completes J a c k u p D r i l l i n g Rig For Swedish Owners page: 36
- SSB A n t e n n a I n t r o d u c ed By Phelps D o d g e - L i t e r a t u r e A v a i l a b le page: 37
- Fred Eisenbiegler Named To Board Of Trustees At Webb Institute page: 39
- New Offshore Mooring System Under Development In Scotland page: 39
- $180-Million Satellite Communications System Approved By INMARSAT page: 42
- Maencor Adds New Management Personnel page: 43
- Senermar Announce New Mini-Computer Version Of FORAN System page: 43
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- Bergeron Launches 100th Vessel Built At Its Mississippi Facility page: 45
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- Oceangoing Tank Barge Launched At FMC Yard page: 46
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- SNAME Pacific Northwest Section Holds Meeting In Canada page: 58