Marine link
 

Jefffboat And Aquamaster Design Z-Drive Propelled River Towboat

Inland shipbuilders Jeffboat and Aquamaster-Rauma, Ltd. have formed a cooperative R&D program to design a state-of-the-art river towboat utilizing Z-drive propulsion. Model testing, conducted during June and July, is the latest phase in a year-long joint design program.

l b take advantage of high omnidirectional thrust available from azimuthing propulsion units, potential designs were developed, models were constructed, and quantitative data was gathered which directly compared the performance of the new Jeffboat/Aquamaster towboat hull against conventional type rudder/fixed propeller designs. The resulting towboat design was developed in conjunction with a Finnish naval architect.

The vessel is designed to be powered by three Aquamaster units of equal size, equipped with the company's patented NSMB type nozzle, with a total absorption capability of 8,000 to 12,000 hp.

Tests on the design were conducted by shallow water vessel research experts VBD of Duisburg, Germany. Steering and flanking side forces of the design were reportedly 150 to 210 percent of the conventional vessel.

The new vessel also reportedly stopped a simulated tow in one-third the distance normally achieved by a conventional vessel. The strength of this design is the redundancy of propulsion units, which increase safety and "come-home" capability. Model test results enable the Aquamaster azimuth drive units to be specifically matched to the inland river towboat. Measured model hull wake fields and propeller loadings will be used to guide selection of mechanical and hydrodynamic drive details.

For more information on the towboat design Circle 81 on Reader Service Card




Pod Propulsion History

1996..Not A Vintage Year In Dry Bulk Markets Not A Vintage Year In Dry Bulk Markets
Aquastrada II To Be MTU-Powered
Breaking thought!
Cruise Ship Design: Propulsion Choices, Space Optimization Key To Ship Profitability
Fast Ferry Business Seeming At Bazan
Finland lapped To Fill Prestigious "Partner" Role At SMM
Hitachi Zosen Completes VLCC Tohzan
Host Of Factors Conspire To Facilitate Bulk Market Stagnation
Hydro-Propelled Ship Concept Receives Patent
Innovation Links Modern Technology With Maritime Past
Jefffboat And Aquamaster Design Z-Drive Propelled River Towboat
Kawasaki Jet Piercer Hayabusa Launched
Kvaerner Unveils New Double Hull Arctic Tanker
Mermaid Podded Propulsion Installed
More Than Just A Propeller
MTU Power On lato Fast Ferry Market
NNS Wins Contract To Design Ele<tri< Drive Motor For U.S. Navy
Norway: Consolidations Continue To Shape Market
Omnithruster Chosen For 16,000-dwt Chemical Tanker
Orders & Innovation Drive Propulsion Gear Manufacturers
Peed Demons
Peterson Builders Heads Development Of New Urban Commuter Ferry
Red Funnel Orders Two Voith-Schneider Ferries From Ferguson Shipbuilders, Port Glasgow
Siemens, MaK Cooperate With CCG For Faster Icebreaker Response
UltraJet Waterjets Available For Diverse Applications
USCG Publishes Proposed Rulemaking For Towing Vessels
Vessel: Zirfaea Yard: Bodewes Volharding Delivery: 1993
Walter Machine Outfits Casino Vessels With Keel Coolers
Westinghouse Marine Division To Supply Sealift Propulsion System Components Submergible Deck To Recover Oil
Yards, Suppliers Bring High-Tech To The Table
 
rss feeds | archive | privacy | history | articles | contributors | top news | contact us | about us | copyright