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Sea Data Set TH52 English
11
Sailboats with a fin keel must have the transducer located at least 25 cm but not more than 75 cm
in front of the keel. It should be placed no more than 10 cm off the centreline.
On sailboats with a pronounced “V” in the hull, such as full-keel yachts, it might be favourable to
angle the transducer slightly so that it aims at the bow, rather than directly parallel to the
centreline.
This will help balanced the passing waterflow measurement from one tack to another.
Avoid placing the transducer near the edge of sharp hull chines. Transverse waterflow in these
areas can affect the accuracy of measurements.
If you have a questions about the location of the through-hull, contact your builder, yacht
dealer, or other owners of similar boats for advice. Always remember to allow for
accessibility from the inside of the yacht when determining the final location.