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Old 11-23-2013, 12:07 PM   #623
Nomad Willy
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City: Concrete Washington State
Country: USA
Vessel Name: Willy
Vessel Model: Willard Nomad 30'
Join Date: Oct 2007
Posts: 13,711
A lot to swallow mate.

Rudder aft of normal will decrease the propwash over it but increase the leverage it has on the hull. May not need a bidder rudder. Depends on several things. Was it big enough in the first place ect ect. In the other direction if the rudder istoo close to the prop I'm sure you will feel more vibration and yes I do think there is a rule of thumb for this.

A prop further fwd would/may have an advantage of not coming out of the water in heavy going. Also prop walk would be slightly reduced.

I'll get back later about the shaft extension.
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Eric

North Western Washington State USA
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