From: "Marvin Kaye" <marv@lancaironline.net>
Subject: Re: [LML] Re: Alert. NACA 64212
To: lml
Date: Mon, 24 Jan 2005 11:49:49 -0500
Message-ID: <web-619451@logan.com>
In-Reply-To: <012601c5022f$bcae38a0$8200a8c0@Drafting1>
References: <list-619314@logan.com>
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Posted for "Jarrett Johnson" <jjjohnson@accesscomm.ca>:

  Gary, I've been following this conversation with interest. In recent day's I
re-read Harry Ribblets book and have to wonder if maybe he couldn't provide
you ES/IV drivers with a cuff that would do the trick. [ For those of you whom
aren't aware, Mr. Ribblet has done some good work on taming the likes of the
Bd-5 as well as other aircraft by re-profiling their airfoils, apparently with
some success] I've flown several aircraft w/ Stall cuffs [i.e.: Horton kit on
a Cardinal] and its amazing the difference in stall speeds as well as
behavior, for a small penalty in cruise speed.  Anyone else have an opinion of
Mr. Ribblets work? I'm sure a cuff could be made that could be easily attached
and faired in, easier than some of the cuffs used on alum. a/c as you'd just
bond it on!
  
  My 2 cents.
  
  Jarrett Johnson
  235/320 55% [and holding]
  
  

> reattach easily.  A drooped cuff seems to be the accepted cure for this
> problem, as done by both Lancair and Cirrus.  During my wing construction 
> I
> was tempted to take a mold off the leading edge and the slide it forward 
> on
> the upper surface to create my own cuff design, but then I figure I would 
> be
> going to far into the "experimental" realm, so I didn't.