DIRECT DRIVE APPLICATIONS IN WATERJET PROPULSION SYSTEMS

In high-speed applications of waterjet propulsion, it is often possible to use direct drives that completely eliminate the need for a gear box. This permits a considerable savings in weight and, at the same time, reduces transmission losses to virtually zero. This weight savings is made even greater by the accompanying reduction in the size of the water jet, all leading to a reduction in total displacement. Direct drive applications have so far largely involved high-speed planing craft such as motor yachts, police boats, Coast Guard vessels and patrol boats. A very recent application, however, involves a series of wave-piercing catamaran ferries under construction in Australia. These catamarans can each carry up to 450 passengers and 80 cars at a cruising speed of 37 knots. The propulsive package consists of four medium-speed diesel engines and four waterjets that are directly driven without a clutch.

• Supplemental Notes:
  • Conference paper
• Authors:
  • Casparri, A
• Conference:
  • Lips Propeller Symposium, 7th
  • Location: Noordwijk aan Zee, The Netherlands
  • Date: 1989-9-21 to 1989-9-22
• Publication Date: 0

Media Info

• Pagination: 2p.

Subject/Index Terms

• TRT Terms: Catamarans; Vehicle drive systems; Waterjet propelled craft
• Old TRIS Terms: Direct drives; Waterjet propulsion
• Subject Areas: Marine Transportation; Vehicles and Equipment;

Filing Info

• Accession Number: 00660194
• Record Type: Publication
• Source Agency: Maritime Technical Information Facility
• Files: TRIS
• Created Date: Jul 21 1994 12:00AM