Published data for SWATHS

[8wickj88]

I'm having trouble via search engines to find published data on SWATHs. Ideally I need access to Cw data, and RAO data. Any help or a shove in the right direction will be greatly appreciated.
Thank you,
James

[jehardiman]

Try these, especally the SNAME T&R Bulletin. Most of the work was done in '67-69 down at NUC San Diego and is not in the open literature. Look for Lamb's and Lin's work.

What size of a SWATH are you looking at? And for what requirements? They are sensitive to size due to thier structural vs seakeeping design tradeoff. It is very easy to make a poor performing SWATH.

REFERENCES
1. Lang, T. G., 1969, "A New Look at Semi-submerged Ships for the Navy", Naval Undersea Center Technical Note 251, 1969.
2. Lang, T. G., 1972, ,S3 - New Type of High Performance Semi-submerged Ship", Journal
of Engineering for Industry, November 1992.
3. Lang, T. G., Hightower, J. D., and Strickland, A. T., 1974, "Design and Development of
the 190-Ton Stable Semi-submerged Platform (SSP)", Journal of Basic Engineering, Trans.
ASME, November 1974.
4. Hightower, J. D. and Seiple, R. L., 1978. "Operational Experience with SWATH Ship SSP
Kaimalino", AIAA/SNAME Advanced Marine Vehicles Conference, April 1978.
5. Numata, E., 198 1, "Predicting Hydrodynamic Behavior of Small-Waterplane-Area Twin
Hull Ships", Marine Technology, SNAME, Vol. 18, Jan. 1981.
6. Narita, H., et al, 1982, "Design and Full Scale Test Results of Semi-Submerged Catamaran (SSC) Vessels", IMSDC London, April 1982.
7. Gore, J. L., 1985, "SWATH Ships, Chap. III, Naval Engineers Journal, February 1985.
8. Kennel, C., 1985, "SWATH Ship Design Trends, RINA Conference, London, April 1985.
9. Kaharl, V., 1985, "SWATH, Calm Seas for Oceanography", EOS Vol. 66, No. 36,
September 1985.
10. UNOLS Fleet Replacement Committee, 1986, "A Plan for Improved Capability of the
University Oceanographic Research Fleet", June 1986.
11. Dinsmore, R. P., and Lang, T. G., 1986, "Replacement of the University Research Fleet and a 2,500-Ton SWATH Ship Candidate", AIAA Conference, Sept. 1986.
12. Lamb, G. R., 1987, "Influence of Seakeeping Requirements on SWATH Ship Geometry",
Chesapeake Section SNAME, June 1987.
13. McCreight, K. K., 1987, "Assessing the Seaworthiness of SWATH Ships", Trans.
SNAME, November 1987.
14. Lamb, G. R. 1988, "Some Guidance for Hull Form Selection for SWATH Ships", Marine
Technology, SNAME, Vol. 25, October 1988.
15. Lang, T. G., Bishop, C. B., and Sturgeon, W. J., 1988, "SWATH Ship Design for
Oceanographic Research", Proceedings Oceans '88, November 1988.
16. Kennel, C., 1992, "SWATH Ships", Technical & Research Bulletin No. 7-5, SNAME
Panel SD-5, 1992.
17. Seidl, L. H., et al, 1993, "Design and Operational Experience of the SWATH Ship Navatek I, Marine Technology, SNAME, Vol. 30, July 1993.
18. Sandison, J., and DeVeny, J., 1993, "Report on the Performance of the SWATH Ship
Victorious (T-AGOS 19) as related to Oceanographic Work", Proceedings of Oceans '93,
October 1993.
19. Van Orden, M. D., and Gaul, R. D., 1994, "Variable Draft SWATH Ships", Proceedings of U.S. Naval Institute, April 1994.
20. Chatterton, P. A., and Paquette, R. G., 1994, "The Sea Shadow”, Naval Engineers Journal, May 1994.
21. Hollaway, D. M. A., Gaul, R. D., and Dinsmore, R. P., 1994, "Waves and the Future:
SWATH for Ocean Science", Proceedings of Oceans '94, 1994.

[8wickj88]

It is about 27 m (LOA) and 10 (BOA). It's essentially a semi-SWATH hullform, similar in approach to the HSS 1500 ferries run by Stena Line in the Irish Sea.

Thank you for the list of references I will look through these.

[jehardiman]

HSS 1500's are really not SWATHS, those are more HSC's, totally different hydrodynamics and propulsion.

FWIW, a true SWATH that small really won't have good performance if you are looking for North Sea/Irish Sea/Baltic operation. You will not be able to make the air gap large enough for a short steep seaway.

[Leo Lazauskas]

Attached is a short paper to add to jehardiman's list...

[Olav]

...and another one, found by accident in a rather dark corner of my HDD. See attached file.

[8wickj88]

Thanks for these replies I will look through them this afternoon.

James