Building a balanced spade rudder

Discussion in 'Sailboats' started by mihkel, Mar 30, 2019.

  1. mihkel
    Joined: Aug 2010
    Posts: 14
    Likes: 0, Points: 1, Legacy Rep: 10
    Location: estonia

    mihkel Junior Member


    I want to try and build a new rudder for a 28ft sailboat. Current rudder has core damage and delamination - not too hard to fix, probably will fix it but I thought I will try to make a better rudder than the stock one.

    Current rudder is very fat - about +5mm extra material on rudder tube, made of glassfiber and polyester resin.

    So idea is that i would like to use carbon rudder post and laminate the external skin in contact with that so essentially the rudder could be more than 10 - 15mm thinner.

    Is there a good guide on building a quality rudder and choosing the right naca type?
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