On 15 Mar 2014 12:52, "Kenneth B. Jones" <kenbjones at cinci.rr.com> wrote: > Snipped... > > > John/Rogelio, > > IF certifying under FAR 23, and using other than the listed materials, then the fire test is required. Who knows? Perhaps .005" stainless over Fiberfrax is better than .015 stainless. > > Ken
I agree. Someone needs to do the test... Wonder what's needed. thermal camera and a big enough burner and of course firewall material. > > > ?23.1191 > > (h) THE FOLLOWING MATERIALS MAY BE USED in firewalls or shrouds "WITHOUT BEING TESTED" as required by this section: > -------------------------------------------------------- ------------------------------------- > > (1) Stainless steel sheet, 0.015 inch thick. > > (2) Mild steel sheet (coated with aluminum or otherwise protected against > > corrosion) 0.018 inch thick. > > (3) Terne plate, 0.018 inch thick. > > (4) Monel metal, 0.018 inch thick. > > (5) Steel or copper base alloy firewall fittings. > > (6) Titanium sheet, 0.016 inch thick. > _______________________________________________ > Search the KRnet Archives at http://tugantek.com/archmailv2-kr/search. > To UNsubscribe from KRnet, send a message to KRnet-leave at list.krnet.org > please see other KRnet info at http://www.krnet.org/info.html > see http://list.krnet.org/mailman/listinfo/krnet_list.krnet.org to change options