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I think someone called them "chines" long ago, but they may have performed a similar function of producing slight resistance to diving


Chine

. Nautical.

a. an angular intersection of the sides and bottom of a vessel.
b. a longitudinal member running behind this.

http://en.wikipedia.org/wiki/Chine_(boating)

Last edited by Tikipete; 07/02/08 08:05 PM.