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  #1  
Old 09-04-2007, 10:55 PM
mfryer's Avatar
mfryer mfryer is offline
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Default mfryers ride

FIRST PART!

Today I received a call from my brother in Seattle. I tasked him with finding for me 1/4" 5 ply birch plywood.

Not only did he find the plywood, he also cut out the firewall for me!

We have lots of extra plywood left over so if anyone is in needs some, let me know. I can probably provide it for less than through wicks or AS&S. If someone needs a n Open-EZ firewall I could duplicate mine in a short time with my router.

Your can see my progress at

http://flyingbackward.blogspot.com/
Flying Backward
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  #2  
Old 09-04-2007, 11:42 PM
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Default Re: mfryers ride

Save that one! Use a lower quality plywood (say from Home Depot) to do all your alignmennt and such. Put the good stuff on after you mount your spar in chapter 14.
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  #3  
Old 09-05-2007, 12:11 AM
ZG4Me ZG4Me is offline
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Default Re: mfryers ride

Ditto on "plenty of extra"...

Not common at Home Despot, but quite common at suppliers for millwork companies. Baltic Birch, 5' x 5' sheets. Waterproof, from my limited 48 hour submerge-in-water test. About $16 per sheet. 1/2" is about $26, I'm using that for jigs.

It's not *exactly* the same stuff I've seen on other Canards, but for me, it'll work. (touch wood )

YMMV,

Rick
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  #4  
Old 09-05-2007, 12:23 AM
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Dennis Passey Dennis Passey is offline
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Default Re: mfryers ride

I think the actual 'plywood' that goes in the finished Firewall assembly is like 10 plies?
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  #5  
Old 09-05-2007, 12:54 AM
ZG4Me ZG4Me is offline
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Default Re: mfryers ride

Quote:
Originally Posted by Dennis Passey View Post
I think the actual 'plywood' that goes in the finished Firewall assembly is like 10 plies?
Zakly... but an odd number

Just like what I've seen in aviation 'spec' plywood, Baltic Birch is also void free, no knots, exceptionally strong, waterproof glue. But it's a ply or two less

I'll bring some chunks to RR for disection/discussion/firewood/mulch.

Rick
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  #6  
Old 09-05-2007, 01:54 AM
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Default Re: mfryers ride

Quote:
Originally Posted by Dennis Passey View Post
I think the actual 'plywood' that goes in the finished Firewall assembly is like 10 plies?
The plans call for 5 ply 1/4" birch plywood. That is what my brother picked up. I believe it is imported from Russia the stuff that comes in 5x5 sheets.
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Old 09-05-2007, 01:57 AM
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mfryer mfryer is offline
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Default Re: mfryers ride

Quote:
Originally Posted by TMann View Post
Save that one! Use a lower quality plywood (say from Home Depot) to do all your alignmennt and such. Put the good stuff on after you mount your spar in chapter 14.
Roger that, I am a little hesitant to go cutting longeron holes and the like in such a nice piece of wood at this point. It must be a little easier to install the spar without the firewall in place. The plans do call for the outer skin to lap around the firewall just under the spar cutout. Is this method discussed in the CP newsletters?

Last edited by mfryer : 09-05-2007 at 02:04 AM.
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  #8  
Old 09-05-2007, 08:10 AM
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Default Re: mfryers ride

Not sure about the Longs' but the Cozy firewall is in 2 pieces. The lower part of the firewall needs to be in place before you install the spar. Installing the spar take some time, a good level(s), and lots of patience. Don't worry about the cutout. You'll be cutting more off later.
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