My H430 was amazingly well designed. Albeit hard to access critical spots, but still accessible.
When I needed to find, change, or repair, there was a
"planned" access spot or an understanding of what made a repair easier.
Getting a Class A rating for heavy seas is not an easy design task.
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Rudder Design...
Shaft strength versus Forces applied.
At
no time would you want your rudder shaft to...
This may bend a stainless post but composite would flex and spring right back to its original form
The rudder shaft is not a mast. It is short and stiff and should have little so called "bend".
To prevent any applied forces from bending a shaft beyond its "yield point" you need rudder shaft...
Bearings.
Anytime you have your boat on the hard [or a strong diver] , it is a simple test is see if your
rudder shaft has lateral movements inside those bearings.
As far as Stress Corrosion Cracking on a SS shaft, that is basically a
bogus fear, since Hunter designed its tube to hydraulically float with the boats fore and aft movements, therefore not stagnant. It takes high salinity plus high temperatures to have SCC.
Additionally the SS is not a galvanic corrosion path either. I have checked it with my AgCl reference probe.
My rudder is a great design.
Jim...