[MHml] flying helm (was winch vs tackle)

[Ross Hobson]

As Bill we go out of our way to fly as its faster.
I don't get changes to helm feel as the hull lifts - we didn't get on FX or on MM either
 
I would appreciate someone explaining why some boat experience it and other don't - I guess it may be due to design/hull shape and its balance with the rudders
 
Ross

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From: multihulls-bounces at steamradio.com on behalf of Bill Gibbs
Sent: Sat 08/12/2007 18:05
To: 'Informed discussion of multihull issues'
Subject: [MHml] flying helm (was winch vs tackle)


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
 
 
 
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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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