OPTIMAL PERFORMANCE CHARACTERISTICS FOR SPECIALIZED SURFACE EFFECT SHIPS
Optimal performance characteristics of high-L/B (length-to-beam) ratio surface-effect ships (SES) are detailed in a paper published at the David Taylor Naval Ship R&D Center (DTNSRDC). A high-L/B (e.g., 5 to 7) SES could be configured as a multi-thousand-ton ship such as a helicopter carrier. The paper presents experimental and predicted performance data for high-L/B SES designs in the areas of drag and powering, motions and maneuvering, and control. The data show that high-L/B SES designs offer lower total drags than low-L/B SES designs up to a crossover speed. The crossover speeds increase with displacement. For displacements above approximately 5,000 tons, design speeds as high as 60 knots were shown to be reasonable expectations. Furthermore, DTNSRDC tests suggest that speed degradation in high seas does not appear to be a serious limitation for high-L/B SES designs of multi-thousand-ton displacements. Also, results of DTNSRDC tests indicate that high-L?B SES designs have excellent potential for achieving transoceanic and greater ranges.
Navy Technology Transfer SheetNaval Surface Weapons Center
Dahlgren, VA USA 22448
- Publication Date: 1980-10
- Pagination: n.p.
- Volume: 5
- Issue Number: 10
- TRT Terms: Air cushion vehicles; Drag forces; Military vessels; Surface effect ships; Vehicle design
- Old TRIS Terms: Air cushion vehicle performance
- Subject Areas: Design; Marine Transportation; Vehicles and Equipment;
- Accession Number: 00323287
- Record Type: Publication
- Files: TRIS
- Created Date: Feb 6 1981 12:00AM