Mailing List flyrotary@lancaironline.net Message #15299
From: Joe <jewen@comporium.net>
Subject: Re: [FlyRotary] Re: Engine mounts
Date: Sun, 16 Jan 2005 19:43:50 -0500
To: Rotary motors in aircraft <flyrotary@lancaironline.net>
Al,
Since Velocity has a Franklin mount in stock, I am leaning towards the approach you took on the engine mount.  Do you have any more pictures of your installation?  Specifically I am looking for more detail on how you attached the block to the mount.  Do you have any vibration isolation incorporated in you arrangement?
 
Thanks,
Joe
----- Original Message -----
From: Al Gietzen
Sent: Sunday, January 16, 2005 12:18 PM
Subject: [FlyRotary] Re: Engine mounts

The short answer is Yes.  The engine mount I build is called an S-beam

(Schertz Beam) mount.  The concept was first developed by Bill Schertz

and was modified by Paul Lamar and others until it evolved into the

present configuration.  The S-beam mount only supports the front of the

engine.  The rear engine support is provided by a adjustable  strut

that runs  from "someplace" on the back of the engine to "someplace" on

the firewall.  

 

I guess which is the “front” of the engine is a relative term.  I conclude it primarily supports the flywheel end. It appears structurally very sound, but I wonder why there are struts along the engine bulkhead between the support points.  Those would only be needed if the bulkhead (or structure between the attach points) was not structurally sound.

 

Al

 

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