| Download | - View final version: Analysis of rudder span effects on IMS hydrodynamic induced drag (PDF, 796 KiB)
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| Author | Search for: Teeters, James; Search for: Pallard, Robert1; Search for: Muselet, C.1 |
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| Affiliation | - National Research Council Canada. NRC Institute for Ocean Technology
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| Format | Text, Article |
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| Abstract | The physical draft of keels has long been known to be critical for the upwind performance of sailboats and has long been an element of handicap rules. The IMS rule uses a relatively sophisticated algorithm for assessing keel draft yet, as is the case with other rules, has never included any influence of rudder span. However, there is considerable empirical evidence that rudders can make a significant contribution to performance by increasing the total effective draft. Tank test research was conducted to explore rudder span and quantify performance differences. The results have been incorporated into the IMS 2002 rule in a way that is intended to give some rating relief to boats with shallow rudders yet to not drive optimised design in that direction. |
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| Date published | 2007
2007-10-01 |
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| Publisher | Fisheries and Marine Institute of Memorial University |
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| In | |
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| Peer reviewed | Yes |
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| Identifier | IR-2007-57 |
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| NRC number | NRC-IOT-6559 |
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| NPARC number | 8896192 |
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| Export citation | Export as RIS |
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| Report a correction | Report a correction (opens in a new tab) |
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| Record identifier | d7c3a67c-6b3b-4f94-9f85-110fe7e8b367 |
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| Record created | 2009-04-22 |
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| Record modified | 2020-05-27 |
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