Subject: Tunable Elastic Drive Couplings
From: paul lamar
Date: 6/11/2016, 10:55 PM
To: A10-Me-Earthlink

 Paul,

 Perhaps of interest...........

 http://www.ringfeder.com/en/international/news-global/elastic-buffers-ordered-in-series-make-tschan-tnr-adjustable/



Kelly Troyer

 Yes that looks very interesting.

 Paul Lamar

 I REALLY LIKE that!

 Steve Brazil


Paul,

here’s a scenerio,,,,flying along with a ringfeder [flex coupling] on my prop as a PSRU…..at about  4500 engine rpm…prop turning say 2250….elastomeric starts to wear out and the prop speed begins to drop…..I divert and land…..taxi in and stop…..from what  see at the ringfeder site I need some more elastomers and a wrench to pull off the plate and prop and replace the elastomers. Put the front plate/prop back on and start back on the flight.

Elastomers are small and light enough to carry a couple sets with me on the plane and take along on the flight so I can replace them when needed

Is that too simple an explanation on what the ringfeder is doing for me?

Byron Head

It is under size for the HP you are trying to put through it.
Send us some pictures of what you have.

Paul Lamar


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