wing tube

[DrMarkMD at aol.com]

Hi,
The best method I have ever come up with is to Decide after cutting the core 
profile how far out the tube is to go.   
After deciding how far cut the core on a table saw that many inches out from 
the centerline.  Cut the shucks as well.  Then tack the center sections 
together.  Make two templates that have the wing tube cut out in them.  Cut a 
vertical entry cut from the center or each wing tube hole in the template.  Weight 
down the core on the shuck and align the trailing edge so they are perfect.  
Use the foam cutting "wand and cut out the tube.  I also use this method to cut 
out servo leads.  Here one only has to cut a vertical in the template for each 
end.  If you drop in the wire and count to 9.  The hear will open up a 
perfectly round hole of approximately 3/8 diameter.  All that is necessary is to 
then contact cement the outside panels on .  Break the tack on the center piece 
and sheet the wings.  This method ensures the tube is perfectly centered and 
perfectly placed.

The best adhesive in my mink is one of the foaming urethanes like Probond.  
Just dont over due it as it expand approx. 4 times.  If you use this method the 
foaming glue fills in any imperfections and makes for a perfect job.

Call me if you want.  This sound much worse than it is.  I can build a full 
set of wings in a weekend and that include cutting the cores and sheeting and 
still finish the yard, etc.

Mark Lamos
Baltimore

410-771-9220   office   tell the office you are a flying friend
410-683-0026   home after 6 PM 

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