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Date: Mon, 17 Jan 2005 11:39:54 -0500
Subject: Re: [FlyRotary] Re: Engine mounts
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From: Jerry Hey <j-winddesigns@thegrid.net>
To: "Rotary motors in aircraft" <flyrotary@lancaironline.net>
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On Monday, January 17, 2005, at 11:26  AM, Al Gietzen wrote:

> Subject:[FlyRotary] Re: Engine mounts
>
> =A0
>
> Al,
>
> Since Velocity has aFranklinmount in stock, I am leaning towards the=20=

> approach you took on the engine mount.=A0 Do you have any more =
pictures=20
> of your installation?=A0 Specifically I am looking for more detail on=20=

> how you attached the block to the mount.=A0 Do you have any vibration=20=

> isolation incorporated in you arrangement?
>
> =A0
>
> Thanks,
>
> =A0
>
> Joe;
>
> =A0
>
> The engine-to-mount attach plates came from Dave Atkins, and he=20
> probably still has those available.=A0 The catch is; the front plate =
is=20
> made to mount to a 12A front cover, which had the engine mounted=20
> there.=A0 The rear plate (flywheel end) will bolt to any of the engine=20=

> versions (I believe; check with Dave).=A0 These incorporate vibration=20=

> isolation at the outer ends where it bolts to the brackets welded to=20=

> theFranklinmount.
>
> =A0
>
> I dug through my photo archives and found a couple shots that give you=20=

> a bit of a view of the plates and the mods to the mount.=A0 In =
addition=20
> to adding the brackets to the mount, the mount rails had to be=20
> extended forward to handle the length of the 20B.=A0 For the 13B this=20=

> may not be necessary.=A0 Also, I had the angle of upper support arms=20=

> from the mount modified to give more spread; i.e. move the attach=20
> points further apart at the firewall.
>
> =A0
>
> Additional changes I made were that I had to shorten the reach of the=20=

> mount brackets on the rear, exhaust side to give some clearance to my=20=

> tangential manifold/muffler.=A0 (I ended up redesigning and making a =
new=20
> rear mount plate after photo was taken).=A0 I also replaced the mount=20=

> bushings in the rear to a =93Barry mount=94 bushing to better handle=20=

> transverse loading (the weight of the engine), rather than using the=20=

> ones supplied with the mount that are designed primarily for axial=20
> loading.=A0
>
> =A0
>
> Lastly, as you will note on the last photo - because of the horizontal=20=

> round cross support at the rear of theFranklinmount I had to relocate=20=

> the starter onTracy=92s mount plate. =A0More pics on that on separate=20=

> posting.
>
> =A0
>
> Hope this helps.
>
> =A0
>
> Al

Beautiful work Al.  do  you have a web page where I could see some=20
more?  Jerry
>
> =A0
>
> <eng-mount2.JPG><Rear mount plate.JPG><Engine-L.JPG> Homepage: =20
> http://www.flyrotary.com/
>>>  Archive:   http://lancaironline.net/lists/flyrotary/List.html

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On Monday, January 17, 2005, at 11:26  AM, Al Gietzen wrote:


<excerpt><bold><smaller>Subject:</smaller></bold><smaller>[FlyRotary]
Re: Engine mounts</smaller>


<fontfamily><param>Times New Roman</param>=A0</fontfamily>


<fontfamily><param>Arial</param><smaller>Al,</smaller></fontfamily>


<fontfamily><param>Arial</param><smaller>Since Velocity has
aFranklinmount in stock, I am leaning towards the approach you took on
the engine mount.=A0 Do you have any more pictures of your
installation?=A0 Specifically I am looking for more detail on how you
attached the block to the mount.=A0 Do you have any vibration isolation
incorporated in you arrangement?</smaller></fontfamily>


<fontfamily><param>Times New Roman</param>=A0</fontfamily>


<fontfamily><param>Times New Roman</param>Thanks,</fontfamily>


=
<fontfamily><param>Verdana</param><color><param>0000,0000,FFFF</param><sma=
ller>=A0</smaller></color></fontfamily>


=
<fontfamily><param>Verdana</param><color><param>0000,0000,FFFF</param><sma=
ller>Joe;</smaller></color></fontfamily>


=
<fontfamily><param>Verdana</param><color><param>0000,0000,FFFF</param><sma=
ller>=A0</smaller></color></fontfamily>


=
<fontfamily><param>Verdana</param><color><param>0000,0000,FFFF</param><sma=
ller>The
engine-to-mount attach plates came from Dave Atkins, and he probably
still has those available.=A0 The catch is; the front plate is made to
mount to a 12A front cover, which had the engine mounted there.=A0 The
rear plate (flywheel end) will bolt to any of the engine versions (I
believe; check with Dave).=A0 These incorporate vibration isolation at
the outer ends where it bolts to the brackets welded to
theFranklinmount.</smaller></color></fontfamily>


=
<fontfamily><param>Verdana</param><color><param>0000,0000,FFFF</param><sma=
ller>=A0</smaller></color></fontfamily>


=
<fontfamily><param>Verdana</param><color><param>0000,0000,FFFF</param><sma=
ller>I
dug through my photo archives and found a couple shots that give you a
bit of a view of the plates and the mods to the mount.=A0 In addition to
adding the brackets to the mount, the mount rails had to be extended
forward to handle the length of the 20B.=A0 For the 13B this may not be
necessary.=A0 Also, I had the angle of upper support arms from the mount
modified to give more spread; i.e. move the attach points further
apart at the firewall.</smaller></color></fontfamily>


=
<fontfamily><param>Verdana</param><color><param>0000,0000,FFFF</param><sma=
ller>=A0</smaller></color></fontfamily>


=
<fontfamily><param>Verdana</param><color><param>0000,0000,FFFF</param><sma=
ller>Additional
changes I made were that I had to shorten the reach of the mount
brackets on the rear, exhaust side to give some clearance to my
tangential manifold/muffler.=A0 (I ended up redesigning and making a new
rear mount plate after photo was taken).=A0 I also replaced the mount
bushings in the rear to a =93Barry mount=94 bushing to better handle
transverse loading (the weight of the engine), rather than using the
ones supplied with the mount that are designed primarily for axial
loading.=A0</smaller></color></fontfamily>


=
<fontfamily><param>Verdana</param><color><param>0000,0000,FFFF</param><sma=
ller>=A0</smaller></color></fontfamily>


=
<fontfamily><param>Verdana</param><color><param>0000,0000,FFFF</param><sma=
ller>Lastly,
as you will note on the last photo - because of the horizontal round
cross support at the rear of theFranklinmount I had to relocate the
starter onTracy=92s mount plate. =A0More pics on that on separate =
posting.</smaller></color></fontfamily>


=
<fontfamily><param>Verdana</param><color><param>0000,0000,FFFF</param><sma=
ller>=A0</smaller></color></fontfamily>


=
<fontfamily><param>Verdana</param><color><param>0000,0000,FFFF</param><sma=
ller>Hope
this helps.</smaller></color></fontfamily>


=
<fontfamily><param>Verdana</param><color><param>0000,0000,FFFF</param><sma=
ller>=A0</smaller></color></fontfamily>


=
<fontfamily><param>Verdana</param><color><param>0000,0000,FFFF</param><sma=
ller>Al</smaller></color></fontfamily>

</excerpt>

Beautiful work Al.  do  you have a web page where I could see some
more?  Jerry

<excerpt>

=
<fontfamily><param>Verdana</param><color><param>0000,0000,FFFF</param><sma=
ller>=A0</smaller></color></fontfamily>


<<eng-mount2.JPG><<Rear mount plate.JPG><<Engine-L.JPG> Homepage:=20
http://www.flyrotary.com/

<excerpt><excerpt> Archive: =20
http://lancaironline.net/lists/flyrotary/List.html

</excerpt></excerpt></excerpt>=

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