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Hi Ben,
Not Dale, but can provide you my perspective
on "Plugs Up". There are only two down-sides if you wish, one is that most
vendor products such as engine mounts are designed for the automobile
orientation - this may or may not have an impact. I have used the Ross
redrive as well as the RWS redrive - both using different mounting
approaches and had no problem with either. The second is that you
need to design a sump so that the oil sump hangs below the engine line and
extend a line from the oil intake to that sump, provide a means for the oil to
drain back from the engine to the sump.
My first one did not extend below the
engine and I could put no more that 3 1/2 quarts into the system before the oil
would cover the drain back tube, this in turn would cause oil mist to be blown
out the oil fill tube. I had not problem flying with 3.5 quarts because
the engine used no engine oil. However, my recommendation is to design it
so the oil sump is below the engine thus assuring no covering of oil return and
being able to hold a couple more quarts of oil.
Here is a photo of one I had made and
a drawing of another design for "Plugs Up" oil pan by Jim Mosur. I used a
4"x4" section of 1/8" wall aluminum tubing to make the sump and 3/16" plate to
cover the engine bottom. You must provide for the protrusion of the oil
pressure control device near the oil pick position.
Hope this gives you some ideas
Ed
----- Original Message -----
Sent: Tuesday, September 05, 2006 12:41
PM
Subject: [FlyRotary] Re: Engine
alignment
Dale,
Please post pictures of
your mount or send them to me directly. I am also considering plugs up on my
Acroduster Too mostly to help with inverted flight and oil, but also because a
high thrust line is preferred on the plane.
Do you see any negatives
with the installation other than not being able to use Jerry Hey's S-Beam
Mount?
Do you know if plugs up
will work with George's (down under) bell housing?
Thanks!
Ben
----- Original Message -----
Sent: 09/05/2006 12:18 PM
Subject: [FlyRotary] Re: Engine
alignment
Thanks Ed,
If all it was *ever* going to
be was just a test stand, I'd agree
about the precision. The test
stand is as accurate a model of the
COZY firewall, dimensionally, as I
can make it (same template). If
this works out well, then I'll be
duplicating the mount for the real
thing - except I'll send that one out
to be welded by a certified
welder. If it doesn't, then I hope CCI
gets caught up on the
backlog before next fall (2007).
BTW, most
of my ideas for implementing "plugs-up" came from
the photos of your
installation.
Dale R.
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