Paper Title: Measurement and Prediction of the Resistance of a Laser Sailing Dinghy
A H Day and E Nixon, University of Strathclyde, Glasgow, UK
This study explores the insight that can be gained into the performance of a conventional sailing dinghy from a program of tank testing in a range of displacement and trim conditions, and further investigates the extent to which performance can be predicted using a regression approach developed for sailing yachts, with the ultimate aim of developing performance prediction tools customised for sailing dinghies. The upright resistance of a Laser Dinghy is examined through tank testing at three different displacements and with a range of trims. Results show that residuary resistance is substantially affected by displacement, and that trim can have a beneficial effect at the lower and upper extremes of the speed range. Comparison with tank test results show that the Delft sailing yacht regression approach does not predict the resistance of a Laser particularly accurately, substantially underestimates the weight sensitivity of a Laser, and cannot reliably predict the impact of trim.
Transactions RINA, Vol 156, Part B1, International Journal of Small Craft Technology, Jan-Jun 2014
DOI No: 10.3940/rina.ijsct.2014.b1.151
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