Analysis of rudder span effects on IMS hydrodynamic induced drag

Download
  1. Get@NRC: Analysis of rudder span effects on IMS hydrodynamic induced drag (Opens in a new window)
AuthorSearch for: ; Search for: ; Search for:
TypeArticle
Journal titleInternational Journal of Small Craft Technology
Volume145
IssueB2
Pages3542; # of pages: 8
AbstractThe 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.
Publication date
AffiliationNRC Institute for Ocean Technology; National Research Council Canada
Peer reviewedNo
IdentifierIR-2003-44
NRC number6248
NPARC number8895771
Export citationExport as RIS
Report a correctionReport a correction
Record identifier5a14e0e8-da23-46c4-9201-51f1280a6a2c
Record created2009-04-22
Record modified2016-05-09
Bookmark and share
  • Share this page with Facebook (Opens in a new window)
  • Share this page with Twitter (Opens in a new window)
  • Share this page with Google+ (Opens in a new window)
  • Share this page with Delicious (Opens in a new window)
Date modified: