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Good point, David.... I was trying to use an aluminum fitting
because the casting is aluminum, and the female AN swivel hose fitting is
aluminum, so I was trying to avoid using dissimilar metals to prevent corrosion,
etc. Paul Conner
From going through all
this with the RV-8, it's my understanding that small fittings, say AN-6 and
smaller should be steel if they attach to a hose with relative motion.
Larger fittings from AN-8 and up can remain aluminum, since they're pretty
beefy. Again, that's just sort of a rule of thumb that some folks use, so
make your own decision about what you feel is safe.
Cheers,
Rusty
(making one more run to the hanger for test fitting exhaust, then final weld
tomorrow)
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