Applying poly glue

[Rcmaster199 at aol.com]

Adding landing gear blocks for retracts in the wing is lighter than  adding a 
large block in the fuse for fixed gear,  particularly where a wide bodied 
model is concerned. Retract blocks in  the wing add about 0.5-0.75 oz each panel. 
Retracts and fixed gear overall  weights are pretty close to one another. 
 
That is if you use the typical fixed gear commercially available. There  are 
alternate, significantly lighter fixed gear
 
MattK
 
In a message dated 11/14/2004 9:33:38 PM Eastern Standard Time,  
michael.lance2 at comcast.net writes:

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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