honeycombing foam cores

[Rcmaster199 at aol.com]

An ounce and half taken twice doesn't sound like much but, as Tom sez,  makes 
the difference between legal and not. Considering what many have paid to  get 
an ES pipe or a carbon wing tube, to save a few ounces, saving that same  
weight from the wings is a bargain.
 
When you consider that an ounce and half from each foam panel represents  
about 40% savings from each core, it takes on a diffrent meaning. Even when each  
panel is finished, the savings will represent 10% of the finished panel. 
 
Mike contact me off list please; there's some more info that  might interest 
you
 
Matt
 
 
In a message dated 11/11/2004 8:14:54 PM Eastern Standard Time,  
kerlock at comcast.net writes:

Thanks  guys, all of you. I think I'll try out that hot knife thingy from CST 
 
first, that sure sounds like a lot less trouble.

And I usually  build all balsa wings/tail, I am just about to mess with some 
foam and I  like options =) I'm not afraid to fill the garbage can with 
messed up  parts. Err actually the floor, it gets to the can 
eventually....maybe like  twice a year......

Thanks guys,
-Mike

----- Original Message  ----- 
From: "Koenig, Tom" <Tom.Koenig at actewagl.com.au>
To:  <discussion at nsrca.org>
Sent: Thursday, November 11, 2004 7:05  PM
Subject: RE: honeycombing foam cores



And this can be the  difference between legal and not legal!

At our recent team trials,  there was frantic activity just before the first 
flights. It was quite  disturbing( for the pilots!) to see so many planes 
needing an instant  weight loss program. The pits were littered with wheel 
pants, foam  packing...batteries, spinners etc etc Anything that could go was 
removed  for those flights.

Moral of the story...keep it light everywhere you  can, even if it means a 
honeycomb job!

Tom

-----Original  Message-----
From:  discussion-request at nsrca.org
[mailto:discussion-request at nsrca.org]On Behalf  Of George Kennie
Sent: Friday, 12 November 2004 8:33 AM
To:  discussion at nsrca.org
Subject: Re: honeycombing foam cores


The  savings is about an ounce and a half per panel.

Bill Glaze  wrote:

> All:
> Since a completed wing panel, (Focus, Hydeout,  etc). with servo,
> linkage, Monokote covering, etc. will weigh,  typically, less than 16
> ounces, how much weight will be saved by  honeycombing a raw foam wing
> panel?  Will it be significant  enough to notice in performance?  If you
> honey comb it enough to  make a significant weight difference, will it
> possibly weaken the  panel leading to in-flight distortion, or possible
> structural  failure?  I know it's an individual opinion, but that is what
> I'm  looking for here.  Thanks.
> Bill Glaze


 
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