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So, if the idea is to use steel where the
result of failure is catasrophic, then how do you explain rubber tubing on the
drain lines??? Are you implying that losing oil pressure in 20 minutes (and
NEVER SEEING any warning indicators on a gauge) is better than losing it in 30
seconds from an oil line failure (where it will likely be indicated on the oil
pressure gauge) ???
Still confused.
Matt
In a message dated 2/9/2005 2:12:33 P.M. Central Standard Time,
hapgoodm94@alum.darden.edu writes:
but where is AL okay and
where is it not okay? Do the
engine manufacturers have any
published comments on this?
Matt, Et Al,
Any pressurized fuel or pressurized oil fitting on an engine or engine
mounted component should be steel since the consequences of a failure are
catastrophic. Any other fitting CAN be steel, depending on your anal
orientation with respect to weight balanced by your affinity for risk.
Let's see, the only aluminum fittings on my "engine" are: upper cylinder
oil return lines (terminated in rubber tubing anyhow), manifold pressure tap
(with restrictor), crankcase breather, "quick" oil drain (nothing is attached
to it in flight) and hmmmmmmmm............... nothing else that I can think
of....
Scott Krueger AKA
Grayhawk
Lancair N92EX IO320 SB 89/96
Aurora, IL (KARR)
Fair and
Balanced Opinions at No Charge!
There is an oxymoron in that,
somewhere...
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