KR>firewall and spar question

2008-10-12 Thread Justin
I was looking over the plans and for the firewall forward deck I have a slight 
confusion. For the KR2S do we put 2 top firewall members (3 1/2" X 5/8") back 
to back? 

Im also getting ready (wood shopping) for my wing spar wood. Is there any 
prblem with using Duglas, anythign special I need to know before I make a 
mistake?
Justin
N116JW
www.geocities.com/attngrabber14/Home


KR>firewall and spar question

2008-10-12 Thread Edwin Blocher
Justin,
Yes you get two thicknesses of 3 1/2" X 5/8" plus a 1/4" shelf top and
bottom of them.
As for Douglas Fir. It is 125% heavier (bad news), at least twice as strong,
and cheaper if you can find it than Sitka spruce. My advice is as always,"if
it ain't broke don't fix it". Stick with spruce.
It is hard to find in Aviation grade.
ED
Ed Blocher
Santa Rosa Beach, FL
ebloc...@earthlink.net
- Original Message -
From: "Justin" <jmw...@socal.rr.com>
To: <kr...@mylist.net>
Sent: Saturday, August 23, 2003 11:55 PM
Subject: KR>firewall and spar question


I was looking over the plans and for the firewall forward deck I have a
slight confusion. For the KR2S do we put 2 top firewall members (3 1/2" X
5/8") back to back?

Im also getting ready (wood shopping) for my wing spar wood. Is there
any prblem with using Duglas, anythign special I need to know before I make
a mistake?
Justin
N116JW
www.geocities.com/attngrabber14/Home
___
see KRnet list details at http://www.krnet.org/instructions.html




KR>firewall and spar question

2008-10-12 Thread Ross Youngblood
Justin,
   Douglas Fir is heavier than Spruce.  I think otherwise
it is OK.  I don't think I would run down to Home Depot for
some 2x4's however.  

   Your best bet for Spruce is Aircraft Spruce, or Wicks
Aircraft.  There are two other vendors, one is in Colorado
which I had quote spruce for me back in '88.  I think it
was Penrose Aerodome, but it has been a long time.  Their
prices seemed very competitive, but they wrote out the
quote on paper and pencil.  
   If you can find a good tech counselor who knows wood,
they can help you find and select your own wood.  You
don't want any knots or voids/pitch pockets in the wood
for a spar.
   Hemlock is another alternative.  

- Original Message -
From: "Justin" <jmw...@socal.rr.com>
List-Post: krnet@list.krnet.org
Date: Sat, 23 Aug 2003 23:55:18 -0500
To: <kr...@mylist.net>
Subject: KR>firewall and spar question

> I was looking over the plans and for the firewall forward deck I have a 
> slight confusion. For the KR2S do we put 2 top firewall members (3 1/2" X 
> 5/8") back to back? 
> 
> Im also getting ready (wood shopping) for my wing spar wood. Is there any 
> prblem with using Duglas, anythign special I need to know before I make a 
> mistake?
> Justin
> N116JW
> www.geocities.com/attngrabber14/Home
> ___
> see KRnet list details at http://www.krnet.org/instructions.html

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