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		Matt Dralle Site Admin
  
  Joined: 08 Nov 2005 Posts: 26477 Location: Livermore CA USA
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				 Posted: Sat May 16, 2009 7:45 pm    Post subject: Carpeting The Cabin Side of Firewall? | 
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				What's the common notion on carpeting the cabin side of the firewall?  I often see aluminium foil backed insulation on the backside of firewalls, but I'm not sure I've seen carpet.  Cars have it, but what about aircraft?
 
 Matt Dralle
 RV-8 #82880 N998RV
 Still Laying Out Carpet In CAD...
 
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		gyoung
 
  
  Joined: 09 Jan 2006 Posts: 211 Location: Republic of Texas
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				 Posted: Sun May 17, 2009 7:16 am    Post subject: Carpeting The Cabin Side of Firewall? | 
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				A number of certified aircraft use an insulated blanket on the firewall.
 They have to contend with the flammability requirements for firewall
 materials. The burn specs for material in contact with the firewall is
 different than materials used on sidewalls and seats. It's not super
 stringent, just a step up. Of course we don't technically have to follow
 that but it's something to consider when choosing the material, whether
 insulation or carpet. I'm sure there's wool carpeting out there that meets
 the firewall spec. That said, the challenge would be getting around all the
 firewall penetrations and structure. I think a lot of folks use the aluminum
 backed insulation to piece it together and secure it with aluminum tape.
 With carpet, you'd want it removable in the event of a brake fluid leak or
 such. If you're up to it there's no reason not to.
 
 Regards,
 Greg Young - Houston (DWH)
 RV-6 N6GY - project Phoenix
 Navion N5221K - just an XXL RV-6A
  
 
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