As part of a long range study to develop commercial sailing ships, wind tunnel tests and tank tests were carried out using scale models, and full scale measurements were made using the experinmntal ship, PAWN.To confirm the results of these studies, a l6000WT sail-assistedtanker, SNIN A/TOKO WARP, has been built and subjected to various sea trials. This paper presents the results of the wind tunnel tests conducted to investigate the aerodynamic characteristics of sails and hulls and the results obtained from the sea trials and the actual voyages of the SHIN AITOKU MAU.The tank test results are summarised placing emphasis on aerodynamic aspects.
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