Hi Paul,
How goes the cookie cutter for the Silicone Bushings? Tracy corrected me on
the width. It is properly 9/16 instead of 1/2. I see that McMaster Carr's
only go up to 1/2, so we should probably go with 2 sheets with adhesive and
stick them together.
If you haven't bought the Silicone yet, I will order it today and buy the
cutters off you, then I will sell the left overs to anyone who wants them.
Tracy shipped my drive today, so all I need is to machine my plate. Is Jim
offering to do it for me? I can drive it up anytime this week (preferrably
outside traffic hours), It also may just be worth while for me to get it
done locally.... i hate that drive.
--
David Leonard
Turbo Rotary RV-6 N4VY
http://N4VY.RotaryRoster.net
http://RotaryRoster.net
These are 1/8th so we will need 4 per hole.
I have the necessary material.
When did Tracy say he would have your new input shaft?
I got my medical today so one more paper work hoop down :)
Paul Lamar
Hi Paul,
You must have missed missed my previous e-mail on the subject, the thickness
is 9/16 rather than 1/2. So we would need 4.5 of them. Better to buy
thicker silicone IMHO. Cheaper too.
My machine work is done, and the gear box should be here tomorrow.
--
David Leonard
Turbo Rotary RV-6 N4VY
http://N4VY.RotaryRoster.net
http://RotaryRoster.net
No I got it.
The 1/2 inch does not have the fabric reinforcement.
We can easily make up the difference with red RTV between
the layers of 1/8th inch.
I assume you found a local shop to do the flywheel. What did they
charge?
I am trying to get a cost on the various ways of solving
the problem. I still like the from-scratch approach as it gives
an opportunity of changing the torsional stiffness. I think those
rubber bushings would work better if the OD was 1.5 inches instead
of 1.375. That in theory would lower the resonant frequency of the gear box
chatter so the engine might idle at say 1300 RPM instead of 1800 RPM.
With a 2.85 gear box that would give a prop RPM of about 500 RPM.
That would give one more options on landing approaches. Also better
for sea planes.
Paul Lamar
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