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From: "Marvin Kaye" <marv@lancaironline.net>
Subject: Re: [LML] Testing
To: lml
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Date: Mon, 23 Jan 2006 01:49:55 -0500
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Posted for "Rick Lafford" <gliderguy89@earthlink.net>:

  Charlie,
  
  I suspect that the flow back that far on the airfoil is turbulent enought
  that additional smoothing doesn't help reduce drag. Leakage from bottom to
  top at speed is also probably minimal. Where gap seals typically help is in
  improving low-speed control response on airfoils that were not designed to
  work with a slot. Aileron and rudder effectiveness are typically improved by
  sealing. The most effective seals I've seen are the internal rolling type.
  
  Good luck on your search for speed and thanks for sharing your experiments
  with the group.
  
  Rick Lafford (HS)