At the risk of enabling a gyro-head,
Hi
Lynn,
Disclaimer duly noted
:-)
I think the 3/8" plate would work fine so long as there is control of the
font pulley end of the engine in all axis.
Good. I had to believe
that would work as well, but thought 1/4" might be just a bit too thin.
So the front relief only needed to be higher than that by 20 PSI or so to
protect the oil cooler in a cold start up.
In racing, the front relief is stacked solid and never opens.
Excellent. This is
what I wanted to hear. The primary relief valve creates a big lump on the bottom of the
engine, which complicates the use of a flat plate on the bottom of the
engine. I'm thinking of several options that would make a flat plate
desirable.
Now that I've thought
about it some more, I could block the primary relief shut by putting an
aluminum dowel in place to hold the piston in it's closed
position. I could probably also cut off the relief valve flush with
the bottom of the front cover, then use a set screw, or pin to
keep it from turning. Drill one more hole near the bottom for a fluid
relief, and it would still work as designed.
I have to admit that I'm
also considering the option of just installing a Rotax 582 in the gyro
initially, so I can build up some gyro experience with a known, well proven
engine. I have a small trailer I was planning to use for a test stand
for the single rotor, which might still be the wisest course of
action.
Thanks
Lynn,
Rusty (suffering from
empty hanger syndrome)