Mailing List flyrotary@lancaironline.net Message #66531
From: Charlie England ceengland7@gmail.com <flyrotary@lancaironline.net>
Subject: Re: [FlyRotary] Re: eliminate cushion drive
Date: Sun, 20 Dec 2020 13:08:42 -0600
To: Rotary motors in aircraft <flyrotary@lancaironline.net>
I wouldn't consider that design viable for a/c use; it is fail-failed, instead of fail-safe. The SGF, guibo, etc will still drive the output shaft (at least for a while) if the compliant parts fail.

On 12/20/2020 12:42 PM, Ernest Christley echristley@att.net wrote:
A slightly different solution along the same lines, that is readily available:


On Sunday, December 20, 2020, 12:05:09 AM EST, Le Roux Breytenbach breytenbachleroux@gmail.com <flyrotary@lancaironline.net> wrote:


For interest :

Come across this flex-coupling interesting that it is design to connect a flywheel to a output shaft.

High speed up to 3500 - 7500 rpm  
210 nm - 3240 nm

https://pdf.directindustry.com/pdf/sgf-gmbh-co-kg/sgf-sgflex-3f-flex-coupling-assembly-us/34796-787217.html#open


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Le Roux Breytenbach 

On 19 Dec 2020, at 08:05, Stephen Izett stephen.izett@gmail.com <flyrotary@lancaironline.net> wrote:

 Thanks very much Neil. 
A plan could be, should the RD1C spines parts strength be questionable, leave it riveted to the 0.2inch thick aluminium damper plate. Cut/machine that plate down to the same circumference as the spined part, approx 5 inch, and Drill the 6 x 10mm holes and attach direct to the EShaft through the spacer machined to correct size.
Steve Izett

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On 19 Dec 2020, at 6:42 am, flyrotary@lancaironline.net wrote: