Subject: Re: [harryproa] Rudder ventilation/ wing sail thickness
From: Doug Haines
Date: 8/20/2010, 10:02 PM
To: harryproa@yahoogroups.com.au
Reply-to:
harryproa@yahoogroups.com.au

 


Thanks for the link.
I heard the rudder/centreboard need to be centred and not in the hulls to tack.
--- On Sat, 21/8/10, Dennis Cox <dec720@att.net> wrote:

From: Dennis Cox <dec720@att.net>
Subject: Re: [harryproa] Rudder ventilation/ wing sail thickness
To: harryproa@yahoogroups.com.au
Date: Saturday, 21 August, 2010, 2:47

 

Just looking through some of the videos surfed from that link, I found: 
 
Since I'm hoping that MLM will actually plane and reduce its "square" low speed deficiencies... this one interested me.
 
Anyone, got any guesses... how fast the boat is going in this video? 
 
 

From: tsstproa <bitme1234@yahoo.com>
To: harryproa@yahoogroups.com.au
Sent: Fri, August 20, 2010 12:31:57 PM
Subject: [harryproa] Rudder ventilation/ wing sail thickness

 

Anyone seen this? Here are some center hung board both being down while sailing hung between two hulls on small center console.

Nice boat.

http://www.youtube.com/watch?v=ZggxS6ZrVOw&feature=related

My solid wing is 2% thickness 9.6% camber. Why go to 20% thickness for a 2.5 inches thick wing. Thin is fast.


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