Nexus 21 TH52 User Manual

Page of 36
 
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.