High Speed Displacement Vessels Parametric Studies and Calm Water Resistance Predictions - State of the Art,
Abstract
High-speed displacement vessels are widely used in most of the smaller navies because they provide low operating cost, combined with performance adequate for policiing 200 nm Exclusive Economic Zones. Feasibility designs of this kind of vessel, such as corvettes and patrol boats, always require calm water resistance estimates. This paper attempts to use available data to analyze main hull form parameters that effect the resistance characteristics of the vessel. A few high speed round bilge methodical series (such as the well known Series 64, NPL-HSRB, SSPA-SFDV, HSVA'C' Series and Canadian Fast Surface Ship Series) as well as some numerical formulas from regression analyses are available for the powering studies of this type of vessel. However, any attempt to design a good high-speed displacement hull by adopting the previously mentioned methodical series has to be carefully examined. The main hull form parameters must be appropriate to the speed range, due to some distinctive resistance characteristics at Froude numbers larger or smaller than 0.45-0.55. This paper covers some basic considerations of these aspects by using several computer programs developed by the author based on some of the high-speed round bilge methodical series. Some other hull form parameters that may affect resistance are also discussed.
Document Details
- Document Type
- Technical Report
- Publication Date
- Apr 01, 1986
- Accession Number
- ADA174027
Entities
People
- Siu C. Fung