Ernest;
I’d basically agree with Kelly also; because with
the complex stress patterns in that plate it is very unlikely that that ˝ the
thickness would only double the stress; and the deformations would be larger
making fatigue failure in areas of the plate a serious concern. Can’t be
worth the risk for 3-4 lbs.
Al
-----Original
Message-----
From: Rotary motors in aircraft [mailto:flyrotary@lancaironline.net] On Behalf
Of Ernest Christley
Sent: Wednesday, June 22, 2005 12:30 PM
To: Rotary motors in aircraft
Subject: [FlyRotary] Re: PSRU adapter plate
Dean
wrote:
>
Ernest
>
>
I agree with Kelly on this. Quite aside from any structural
>
considerations, in looking at Tracy's exploded view of the RD
>
assembly, it appears that you would be moving the whole main gear
>
housing assembly 1/4 inch closer to the eccentric shaft and trying to
>
force the input shaft/sun gear 1/4 inch deeper into the planetary
>
gears. From examination of my uninstalled RD-1B, I believe that all
>
shaft lengths, bearings, thrust bearings, clearances,etc, are
>
carefully based on use of the 1/2 inch plate, and it would be
>
impossible to use anything thinner.
>
>
Dean Van Winkle
>
RV-9A Fuselage/Finish '89 13B NA, RD-1B, EC2, EM2
Thanks,
Dean, but the RD-1 measurements won't be a consideration. I
have
a different PSRU.
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