Mailing List flyrotary@lancaironline.net Message #15309
From: William <wschertz@ispwest.com>
Subject: FlyRotary] Re: Engine mounts
Date: Sun, 16 Jan 2005 22:01:14 -0600
To: Rotary motors in aircraft <flyrotary@lancaironline.net>
Message
From: William
Sent: Sunday, January 16, 2005 9:45 PM
Subject: Re: [FlyRotary] Re: Engine mounts

Here is a picture of how I am doing the rear strut.
 
A 1/8" plate will be bolted to the 5 bolts on the side of the engine, it has an extension of 1" square 4130 steel tubing welded to the plate, with 1/8" ears welded onto the tubing. This gets it to clear the oil outlet and the alternator belts.  Rubber ball ends are used, one with right hand threads and one with left hand threads. The firewall bracket is two 1/4" thick Aluminum angles bolted to the firewall.
 
Turning the strut makes it longer or shorter, it will have a safety wire when done.
 
Bill Schertz
KIS Cruiser # 4045
----- Original Message -----
Sent: Sunday, January 16, 2005 10:29 AM
Subject: [FlyRotary] Re: Engine mounts

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.  

Hi Jerry,
 
Can you post a picture that shows an example or two of an "adjustable strut".  As pictured, it looks like there would still be quite a bit of weight on the rear of the engine, so the strut can't just be a trivial piece.  Goodness knows that if this evolved on the other list, it's been engineered way beyond my tolerance, but I just can't quite picture what you have in mind for the rear support. 
 
Doesn't Atkins also use a beam system like this?  I seem to recall that he used to sell the beams, but you were on your own to make the mount.  Could be wrong about that.  
 
Cheers,
Rusty (hanger roof is fixed, no more raining in the hanger)



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