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.
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