engine mount

[Steve & Cindy Kessler]

John,

I had over a 100 flights on my Eclipse with the light glassed balsa firewall.  I did have to install some 1/8' hard ply washers for the motor mount blind nuts.  I had very little vibration transfer from my OS140 engine.  My current OS140 eclipse uses 1/8" hard ply firewall.  I have a noticable increase in vibration in the fuse.  I prefer not to use the stiffer fire wall.  By the way, we use a home brew Hyde clone mount.  Good luck.  

Steve
  ----- Original Message ----- 
  From: Rcmaster199 at aol.com 
  To: discussion at nsrca.org 
  Sent: Saturday, December 11, 2004 9:31 AM
  Subject: Re: engine mount


  In a message dated 12/11/2004 8:14:38 AM Eastern Standard Time, flyboy422 at juno.com writes:
    Hi,

        I'm building an Eclipse and was wondering what can be done to stiffen
    up the light firewall than comes with the kit to support a Hyde A mount
    so it doesn't flex? I'm running a O.S.140

                           John
  1/8" aircraft ply is plenty strong without any stiffeners in the backside of the FW. The beauty of the Hyde and Hyde style mounts is that there's relatively little energy transferred to the backplate. Most of the energy is absorbed bythe rubber snubber. Good luck

  MattK
-------------- next part --------------
An HTML attachment was scrubbed...
URL: http://lists.f3a.us/pipermail/nsrca-discussion/attachments/20041212/ba0e8411/attachment.html