Modifications have been made that sorts out the initial problems. The rudders work OK when fully down but require too much effort when partially lifted. I don't see that a corroded shaft is a fault of the structural design, but more an unforeseen consequence of materials. For the rest of the structure to survive after the shaft broke suggests it is well and truly strong enough. Aroha is not reporting any problems with the rudders. I think I would try and remove as much metal from the boat as possible.
--- In harryproa@yahoogrou
>
> So rudders failed again. See Rare Bird first test sail from Harryproa.com http://www.harrypro
>
> It seems like rudders still are major problem in big proas. Loads can be huge. Handling those loads is easier with rudders mounted in the hulls even though it brings other problems. I look forward to Arttu's experience this coming season with visionarry and hull mounted rudders.
>
> Let's hope Rob and others can solve those rudder problems soon.
>
> Arto
>
>
> --- On Tue, 4/14/09, Robert <cateran1949@
>
>
> From: Robert <cateran1949@
> Subject: [harryproa] rare bird.
> To: harryproa@yahoogrou
> Date: Tuesday, April 14, 2009, 2:28 PM
>
>
>
>
>
>
>
>
> Rare bird suffered a corroded rudder post. It was supposed to be stainless 3.6.1. The posts are going to be replaced with carbon ones.
> The owner reckons it was remarkably comfortable at 13 knots in a bit of a sea
>
Change settings via the Web (Yahoo! ID required)
Change settings via email: Switch delivery to Daily Digest | Switch format to Traditional
Visit Your Group | Yahoo! Groups Terms of Use | Unsubscribe