Mailing List lml@lancaironline.net Message #8003
From: John Kleber & Annette Worthington <73761.230@compuserve.com>
Sender: John Kleber & Annette Worthington <73761.230@compuserve.com>
Subject: Horizontal Stabilizer and Elevators
Date: Sun, 31 Dec 2000 00:07:07 -0500
To: lancair.list@olsusa.com <lancair.list@olsusa.com>
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I attended the Legacy builder workshop during the first week of December.
A good workshop overall....however, there was one major oversight.  When we
closed the horizontal stabilizer and elevators, we did not drill the
required 1/4" vent holes in the ribs.  I called Lancair for technical
assistance, and Don Goetz said "it really wasn't important-----just
something copied over from the IV/IVP" construction manual."  

Well, now that I realize just how tightly sealed these assemblies are, I
don't think I agree.  While climbing from sea level to FL180 a great deal
of expansion will occur, with the very real potential for component
failure.  

So, experienced builders, please help me out.  Do I need to buy a 4-foot
drill bit to drill through these ribs from each end of the stabilizer?   Or
will a 1-foot drill work by drilling through the rear beam into the front
spar?  The elevators may be a little trickier!

John Kleber
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LML website:   http://www.olsusa.com/Users/Mkaye/maillist.html
LML Builders' Bookstore:   http://www.buildersbooks.com/lancair

Please send your photos and drawings to marvkaye@olsusa.com.
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