Hello All,
I am new to this group so hope I am doing this right!!
This last winter I built a new rudder from scratch. It comprises a ply
and solid wood structure faired to shape and then epoxy sheathed.I
have seen recently that some of the newer moldings to mine had hollow
GRP rudders.
When I removed mine I dug a hole about 15" deep and dropped the lot.
However the rebuild is similar to Santana, with a flange and four
bolts. This is a quite a satisfactory design and is infact how yachts
were built years ago when "yachts were built" and not factory floor
assembled.
Another modification has been made at the shaft head where the tiller
is fixed. This has been made with a taper turned on the top 2" and a
tapered collar dropped on with a shear pin through. The reason being
that we moor in mud in a tidal pill ( 1 mile above the Severn
Bridge). When she settled one day last Autumn she slid back and
although the tiller was lashed she still managed to cant the rudder
and twisted the top of the shaft.
If further detail is required and you think I can help please come
back to me.
Good luck.
Paul Chapman.