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Steve, you are right. The Issue is cracking og
the auto-tranny flex plate. Mine failed entirely. I highly
recommend making the change sooner rather than later.
Dave Leonard
Hi Charlie
I thought people moved to the race flywheels because the flex
plates were cracking.
I hadn’t heard of the Engine/Drive/Prop needing a flywheel
mass.
I found some info on the forum archive but nothing to draw it
all together.
I’ll have a good look at the flexplate when I pull the drive
and check for cracking, but unless I hear otherwise I plan to
reuse the flex plate.
Thanks
Steve
> On 6 Dec 2020, at 8:58 am, Charlie England ceengland7@gmail.com
<flyrotary@lancaironline.net>
wrote:
>
> On 12/5/2020 6:35 PM, Stephen Izett stephen.izett@gmail.com
wrote:
>> Hi team
>>
>> Having completed phase #1 testing of the Glasair
Super IIRG power by Renesis and RD1-C redrive, I’re going to
pull the redrive for its 25 hourly initial inspection.
>>
>> Tracy deleted the damper assembly from the last
rendition of his design and I’m considering removing ours by
creating a new adapter plate from the existing splined
>> part that is currently riveted to the damper and
adding some longer bolts and spacers.
>>
>> Has anyone heard anything further in regard to RD
receives with the damper removed?
>> Has Tracy given any further updatess?
>> All I have read was after initial tests some years
ago.
>>
>> Cheers
>>
>> Steve.
> Best I remember is that you need either an aluminum or
steel racing flywheel, to get more mass on the engine side of
the system. IIRC, it's also limited to low mass (wood, etc)
propellers. The ones he sold had a different input shaft, but
I think Dave Leonard modified his RD1-C & to use a steel
racing flywheel which was only slightly heavier than the
aluminum version. Search for Dave's posts, if he doesn't chime
in. I've been wondering if Guibo/Rototflex couplers could be a
viable alternative to the aluminum plate/rubber discs.
Probably would weigh more, and definitely cost more.
>
> Charlie
I've got a flexplate from a salvage yard that is cracked (never
flown). On the other hand, I think Tracy had over a thousand hours
on his without cracking, before switching to the RD2.
Here's an archived RWS page from the Wayback Machine:
https://web.archive.org/web/20121230061959/http://www.rotaryaviation.com/RD-2C.htm
and
https://web.archive.org/web/20121230065615/http://www.rotaryaviation.com/faq's.htm
Charlie
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