[MHml] flying helm (was winch vs tackle)

[Bill Gibbs]

We fly whenever possible, but do not experience a shift to lee helm.  (And
trust me, I'd know)
 
If close hauled, we have slight weather helm and both daggerboards all the
way down.  Our daggerboards produce a lee helm component, the main sail
produces the weather helm component.  As the weather hull comes up, we are
reducing the weather daggerboard's depth of immersion and reducing it's
contribution of lee force.  Perhaps this compensates?    
 
Maybe someone on the list can explain this difference in helm reaction to
hull flying.
 
Bill
Afterburner
 
 
 
  _____  

From: multihulls-bounces at steamradio.com
[mailto:multihulls-bounces at steamradio.com] On Behalf Of Peter Lillywhite
Sent: Thursday, December 06, 2007 8:46 AM
To: 'Informed discussion of multihull issues'
Subject: Re: [MHml] Winch vs Tackle


The only time we lifted a hull, thanks to a gust off a local hill, dumping
the track line had little effect a big ease of the main sheet brought the
hull down immediately. The most interesting thing for me was with the hull
in the air our cat developed huge lee helm,  this I assume is due to the
drag of the leeward hull acting against the CLA, but how do you guys who
regularly fly your cats handle this?
 
Cheers Peter.
 
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