From: TByrnes133@aol.com
Message-ID: <0.19bf4f04.2588d744@aol.com>
Date: Wed, 15 Dec 1999 06:36:36 EST
Subject: LC235 VENTRAL FIN...
To: Lancair.List@olsusa.com
Mime-Version: 1.0

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Ed

On my 235 I think I used (2) 3/4 inch thickness of foam glued together with 
micro.  There is very little taper in the plan view and I think that it is 
about 4 to 5 inches high at the back.  The rudder is extended down to match.  
I used a micro slurry and 2 or 3 Bid over the foam overlapping onto the 
fuselage about 2 inches.  I then used regular micro to blend in to the 
fuselage.  On the rudder extension, you might want to consider what the shape 
should be in the side view.  I have seen the rudder line extended straight 
back until it intersected the rear line. That looks good but when you rotate 
for take off the trailing edge hits the runway with considerably less 
rotation then if you start raising the bottom line from the rear of the 
Ventral fin so that when you lower the tail to the ground, the rear of the 
ventral fin and the trailing edge of the rudder touch the ground at the same 
time.

Tom Byrnes  Lancair 133TB
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