Hey Oleg,
Contrary to popular belief, the addiction is not a new design, It has slowly
but surely rose to the top of the contest placing as more people are flying
them now. This is due to the fact that Fred Sage has picked up production
and it is more available now. The addiction actually started out as a
design by one of our club members here in Santa Clarita about 4 years ago.
My dad carved the fuselage plug and a guy named John Johnson designed the
wings and the light layup. After John got out of the hobby, fred sage
stepped in to keep up with the demand. John gave me all of his tooling
fixtures except the fuselage mold so since then, I have bagged my own and
have not purchased one from Fred. I still buy the fuselage from him though.
In my current layup, I used what I had on hand. I used Blue foam cores, I
would of liked to use spyder foam but I did not have any on hand. My spar
is a carbon tube that is used as the wing joiner tube. I use a full length
of it 30" in each wing half. This allows me to omit a sub rib because the
spar is so long. Fred uses the same spar but only 10" long and no sub rib.
A few of our club members have folded his wings right were the carbon tube
ends. I am in no way saying freds wings are bad, I think they are of
exceptional quality. I just feel the added length to the spar distributes
the loading more evenly over a longer span. I have yet to fold one.
Although, I have the added weight of the longer spar. It is a trade off
worth making I think.
As far as the layup, I used what I had. 1 layer of 3/4 oz. 1 layer of 1.25
oz, 1 layer of 1.25oz? S glass at the tips only to strengthen the tips (see
below). I am not sure what weight my carbon is but i have a whole roll of
it so I am trying to finish it off. It is uni-directional from Hexcell. I
don't care for it too much it tends to split at the tips where there is
little foam core. That is why I have to use the S glass. I use one layer of
the carbon and then two squares where the servos need to be cut out. All
the layers are top and bottom. I paint the top mylar only, white with some
color at the tips. The bottom remains the carbon black. This layup is a
little heavier than freds due to me using what materials I currently have,
but it is overkill in the strength department. when I run out of the Uni, I
plan to purchase some of the carbon from aircraft spruce and modify my layup
to produce a lighter wing.
as far as freds layup, I have inspected some damaged wings from a club
member who cant stay away from chain link fences, and it looks to me like he
uses one layer of light glass top and bottom and one layer of the aircraft
spruce carbon top and bottom. I may be wrong.
I plan to use this same layup but still run my spar the full 30". Also my
dad and I are planning to carve a new fuselage plug with a few modifications
so we can make a mold and make everything ourselves. I still have all of
the original drawings in CAD and all I need to do is make the changes and
print out a full size fuselage profile and carve it out. It will be a good
winter project.
Hope this helps,
Marc Webster
>From: Oleg Golovidov <[EMAIL PROTECTED]>
>Reply-To: Oleg Golovidov <[EMAIL PROTECTED]>
>To: [EMAIL PROTECTED]
>Subject: re: buy an addiction
>Date: Thu, 21 Dec 2000 09:18:51 -0500 (EST)
>
>Marc,
>you mentioned on RCSE that you've bagged your Addiction yourself.
>Can you tell me what spar system and layup schedule you used? Do you know
>what
>Fred Sage is using?
>Thanks in advance,
>Oleg.
>
>________________________________________________________________________
> _____ _____ __
> / ___/| / ___/| / /|
> Oleg Golovidov / /__ |/ / /__ |/ / / /
> Engineous Software Inc. / ___/| /__ /| / / /
> www.engineous.com / /__ |/ ___/ / / / / /
> (919)677-8510 x107 /____/| /____/ / /_/ /
> |___ |/ |____|/ |_|/
>
>
>
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