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post #128 of Old 06-12-2013
Jeff_H
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Re: Starrett-Jenks Morgan45 info-opinions

Quote:
Originally Posted by Talisman66 View Post
Rudder relocation finished!
That is a major change. It might be helpful to other owners if you talk about what you did in more detail.

Normally, a change like that requires a whole lot of additional work to make it hyrdrodynamically effective and structurally stable. Normally, there is area added to the forward side of rudder forward of the rudder post to reduce the torsional loads on the rudder post and lighten steering forces now that the leading edge of the rudder is fully exposed.

Normally, structurally, bulkheads and knees are added where the rudder post comes into the boat. The rudder post normally needs to be much larger than before to withstand the side forces. (I know that you have that cantilevered weldment from the back of the keel to the bottom of the rudder, but its attachment suggests that its not designed to take the required side forces.)

It might be helpful if you explained how you addressed those kinds of issues.


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