Applying poly glue

[Michael H Lance]

All,
 
Just as a point of reference, are these wings set up for retracts or
not?  My guess is not.
 
Mike
 
-----Original Message-----
From: discussion-request at nsrca.org [mailto:discussion-request at nsrca.org]
On Behalf Of Rcmaster199 at aol.com
Sent: Sunday, November 14, 2004 6:21 PM
To: discussion at nsrca.org
Subject: Re: Applying poly glue
 
Scott,
Use light wood and no more than 1 pound density foam core. Make sure the
sheeting for a wing weighs in at around 40 grams but no more than 50
grams each. Be very fussy about the sleeve fit into the foam core; glue
makes for a very poor filler.The lightest sleeves are probably the PBG
glass. I capture mine on the top and bottom with 1/8" balsa spars, full
length plus 3 inches, rather than with a vertical lite ply piece at the
end of the tube. Lighter and stronger when finished.
 
 If you don't go hog wild on theglue, the typical 500 sq inch panel will
come in at around 8 1/2 to 9 ozs. I use no balsa tip blocks on my wings,
just an end plate of lite ply that adds maybe 5 grams. Of course wing
panels are cut with that in mind. Lite ply has proven far more durable
on inevitable runway scrapes and more accurate than balsa tip blocks
since there's no shaping.
 
As far as removing some of the foam via honeycombing, I've done that too
and saved another ounce or so per panel. However at 9 ozs the wings will
fly great. These will typically finish out at around 12 1/2 -13 1/2 ozs
each ready for equipment. There's nothing wrong with that weight. If
more weight loss is desired, one should look elsewhere. There are plenty
of places to remove weight.
 
MattK
In a message dated 11/14/2004 8:17:11 PM Eastern Standard Time,
js.smith at verizon.net writes:

Now I just have to figure out how you guys are making 9oz wing
panels...!!

Scott
 
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