Great advise Bud -
I, always "as tight as a bulls arse in the fly season" , have come up with my
own
heat shielding systems, that actually seem to work, as hoses removed/replaced
at 5 years, are still good enough to be recycled for use in ground based
equipment.
Depending on location, I use a combination of malleable builders aluminium
"flashing"
or very thin aluminum sheet (scraps of aircraft skin also). For hoses
that are exposed to very high heat, I supplemented with exhaust bandage,
silicone
glued to inside of aluminium. I use safety wire to hold/clamp the insulation
in place.
For over-engine fuel lines - automotive corrugated sleeve, wrapped in
air-conditioners
reflective foil.
For the most part , the shielding I have made up, can be reused at the 5 year
interval.
Oh! and yes I appreciate that the automotive corrugated tubing is flammable and
would contribute to an engine fuel fire.
As far as weight goes - dont know, but would be minimal as shielding only used
where hoses may be exposed to significant radiant/convection heat.
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