This same issue was recently discussed in Van's newsletter.
Their position was that aluminum fittings were and are specified and
used by Lycoming and OEM aircraft manufacturers. They are not
mandated by FAA or Part 23 regs. They felt aluminum was just fine.
OTOH, the only fittings I found for the main engine oil connections were
Racing Beat's and they are steel.
Tracy
Lehanover@aol.com wrote:
>In a
message dated 3/29/2005 10:14:16 AM Central Standard Time,
>Dastaten@earthlink.net writes:
>
><< And what is/was
the rationale for not using AL fittings ?
>
> Dave
>>
>
>Fatigue.
>
>Aluminum has a short fatigue
life.
>(SNIP)
>
>Lynn E. Hanover
>
>
OK... now.. what about for fittings/aluminum lines that appear NOT
to be
subjected to flex loads but still on the engine. For instance,
running
from a rigidly mounted PSRU to the engine block..
http://www.rotaryresources.com/modules.php?set_albumName=album04&op=modload&name=gallery&file=index&include=view_album.php
This
should be a pic of a rotary with Tracy's PSRU on it, from Bruce's
webpage.
Can I run AL tubing to AL fittings from an AL block to the AL
PSRU or
again, should it be steel for safety (or convention's ) sake.
I'm really
not HUNG UP on AL.. i just dont want to have to buy ANY part
more than
once...and I'm getting ready to go buy
parts.
Dave
>> Homepage: http://www.flyrotary.com/
>>
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