Today's Message Index:
----------------------
1. 05:39 AM - Kitlogpro (plaurence)
2. 06:12 AM - Re: Std vs. Aerobatic Engine Vibration Mounts (Richard Martin)
3. 06:20 AM - Re: Std vs. Aerobatic Engine Vibration Mounts (Richard Martin)
4. 06:21 AM - Re: Std vs. Aerobatic Engine Vibration Mounts (Richard Martin)
5. 07:12 AM - smoke system (Timothy E. Cone)
6. 07:44 AM - Re: Std vs. Aerobatic Engine Vibration Mounts (John Morgensen)
7. 08:17 AM - Re: smoke system (wgill10@comcast.net)
8. 09:34 AM - Re: Std vs. Aerobatic Engine Vibration Mounts (Vanremog@AOL.COM)
9. 10:04 AM - Re: Std vs. Aerobatic Engine Vibration Mounts (John Cox)
10. 01:39 PM - Another one joins the fleet! (Fisher Paul A.)
11. 01:57 PM - Re: Another one joins the fleet! (McFarland, Randy)
12. 05:26 PM - Re: Std vs. Aerobatic Engine Vibration Mounts (Dale Ensing)
Message 1
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Apologies to listers for this email .
Matt Dralle:
Matt,
Please respond to my email about Kitlog.
I would like to resolve the issue.
Peter Laurence
Do not archive
Message 2
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| Subject: | Re: Std vs. Aerobatic Engine Vibration Mounts |
----- Original Message -----
From: "Matt Dralle" <dralle@matronics.com>
Sent: Wednesday, August 05, 2009 6:48 PM
Subject: RV-List: Std vs. Aerobatic Engine Vibration Mounts
>
>
> Dear Listers,
>
> I've got an IO-390 to mount on the RV-8. What are the pros and cons and
> opinions regarding the use of the "Standard" vs. "Aerobatic" engine
> vibration mounts? I have a set of both and can't decide which to use.
> Will there be more sag with the Std version over time? Is the different
> in vibration noticeable? Does having the larger engine make any
> difference in the selection? What other gotchas are there between the two
> different types.
>
> One other question. Do they have a shelf life? Does a set sitting in the
> box, on a shelf for 15 years have any noticeable reduction in
> "performance"?
>
> Thanks for your feedback!
>
> Matt Dralle
> RV-8 #82880 N998RV
> FWF Starting This Weekend!
>
>
>
Message 3
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| Subject: | Re: Std vs. Aerobatic Engine Vibration Mounts |
Listers,
I now have 1000 hours on my 390 installation. I will be happy to comment
via telephone @920 619 6968.
Dick Martin
RV8 N233M
----- Original Message -----
From: "Matt Dralle" <dralle@matronics.com>
Sent: Wednesday, August 05, 2009 6:48 PM
Subject: RV-List: Std vs. Aerobatic Engine Vibration Mounts
>
>
> Dear Listers,
>
> I've got an IO-390 to mount on the RV-8. What are the pros and cons and
> opinions regarding the use of the "Standard" vs. "Aerobatic" engine
> vibration mounts? I have a set of both and can't decide which to use.
> Will there be more sag with the Std version over time? Is the different
> in vibration noticeable? Does having the larger engine make any
> difference in the selection? What other gotchas are there between the two
> different types.
>
> One other question. Do they have a shelf life? Does a set sitting in the
> box, on a shelf for 15 years have any noticeable reduction in
> "performance"?
>
> Thanks for your feedback!
>
> Matt Dralle
> RV-8 #82880 N998RV
> FWF Starting This Weekend!
>
>
>
Message 4
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| Subject: | Re: Std vs. Aerobatic Engine Vibration Mounts |
I now have 1000 hours on my IO-390 from Barrett Performance AC. I used the
aerobatic mounts because I noticed on my old IO360 on my RV8 that there was
some sag. As of this date their is no sag with the aerobatic mounts. Also
there is no descernable difference in vibration etc. The alignment of the
engine within the cowl shows no difference.
I did use a shim washer under one of the mounts to achieve perfect alignment
of the engine within the cowl.
Note, I also use a Aerocomposites 74" Carbon fiber prop with a Sam James
cowl and plenum. More speed and less weight.
Dick Martin
RV8 N233M
If you want to discuss, call me @9206196968
----- Original Message -----
From: "Matt Dralle" <dralle@matronics.com>
Sent: Wednesday, August 05, 2009 6:48 PM
Subject: RV-List: Std vs. Aerobatic Engine Vibration Mounts
>
>
> Dear Listers,
>
> I've got an IO-390 to mount on the RV-8. What are the pros and cons and
> opinions regarding the use of the "Standard" vs. "Aerobatic" engine
> vibration mounts? I have a set of both and can't decide which to use.
> Will there be more sag with the Std version over time? Is the different
> in vibration noticeable? Does having the larger engine make any
> difference in the selection? What other gotchas are there between the two
> different types.
>
> One other question. Do they have a shelf life? Does a set sitting in the
> box, on a shelf for 15 years have any noticeable reduction in
> "performance"?
>
> Thanks for your feedback!
>
> Matt Dralle
> RV-8 #82880 N998RV
> FWF Starting This Weekend!
>
>
>
Message 5
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Matte,
Go to Northerntool.com and pick a tank. I picked one that fits nicely
in
the drop down section of the forward baggage compartment...they had one
that
dropped right in. 3.5 gals.
The pump is just an ordinary ag pump...check online.
Here are a couple of pics,
http://picasaweb.google.com/tconerv8/SmokeSystem#
Thanks for the compliment on the 37 ship. My homebrewed smoke was
looking
just fine as Delta 3 and I was the only smoker in that file.
Tim
do not archive
Timothy E. Cone
tcone1@comcast.net
Message 6
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| Subject: | Re: Std vs. Aerobatic Engine Vibration Mounts |
What is DC4?
John
Vanremog@aol.com wrote:
> Matt-
>
> One wearout mode besides compression set (sag) in these isolators is
> loss of elastomeric properties over time due to outgassing of the
> natural oils/emollients in the rubber compound. This increases the
> durometer of the compound over time and increases their
> transmissibility. Aerobatic mounts are naturally stiffer than
> standard isolators from the get-go. IMO you should buy fresh standard
> isolators and immediately coat them in DC4, then you should
> dynamically balance your engine/prop combination. They then should
> last until engine TBO.
>
> N1GV (RV-6A Flying 924TTAE Silicon Valley, CA)
>
Message 7
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| Subject: | Re: smoke system |
Tim,
Do you have a P/N for the tank? I could not find one like the one in your p
hoto. Thanks in advance for your reply.
Bill
RV-7 N151WP
----- Original Message -----
From: "Timothy E. Cone" <tcone1@comcast.net>
Sent: Thursday, August 6, 2009 8:58:14 AM GMT -06:00 US/Canada Central
Subject: RV-List: smoke system
Matte,
Go to Northerntool.com and pick a tank.=C2- I picked one that fits nicely
in
the drop down section of the forward baggage compartment...they had one tha
t
dropped right in.=C2- 3.5 gals.
The pump is just an ordinary ag pump...check online.
Here are a couple of pics,=C2- http://picasaweb.google.com/tconerv8/Smoke
System #
Thanks for the compliment on the 37 ship.=C2- My homebrewed smoke was loo
king
just fine as Delta 3 and I was the only smoker in that file.
Tim
do not archive
Timothy E. Cone
================
==
Message 8
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| Subject: | Re: Std vs. Aerobatic Engine Vibration Mounts |
_http://www.aircraftspruce.com/catalog/cspages/dc4.php_
(http://www.aircraftspruce.com/catalog/cspages/dc4.php)
In a message dated 8/6/2009 7:45:18 A.M. Pacific Daylight Time,
john@morgensen.com writes:
What is DC4?
John
_Vanremog@aol.com_ (mailto:Vanremog@aol.com) wrote:
Matt-
One wearout mode besides compression set (sag) in these isolators is loss
of elastomeric properties over time due to outgassing of the natural
oils/emollients in the rubber compound. This increases the durometer of the
compound over time and increases their transmissibility. Aerobatic mounts are
naturally stiffer than standard isolators from the get-go. IMO you should
buy fresh standard isolators and immediately coat them in DC4, then you
should dynamically balance your engine/prop combination. They then should
last until engine TBO.
N1GV (RV-6A Flying 924TTAE Silicon Valley, CA)
(http://www.matronics.com/Navigator?RV-List)
(http://www.matronics.com/contribution)
Message 9
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| Subject: | Std vs. Aerobatic Engine Vibration Mounts |
It is silicone in a tube and often used when installing O rings.
John
From: owner-rv-list-server@matronics.com
[mailto:owner-rv-list-server@matronics.com] On Behalf Of John Morgensen
Sent: Thursday, August 06, 2009 7:42 AM
Subject: Re: RV-List: Std vs. Aerobatic Engine Vibration Mounts
What is DC4?
John
Vanremog@aol.com wrote:
Matt-
One wearout mode besides compression set (sag) in these isolators is
loss of elastomeric properties over time due to outgassing of the
natural oils/emollients in the rubber compound. This increases the
durometer of the compound over time and increases their
transmissibility. Aerobatic mounts are naturally stiffer than standard
isolators from the get-go. IMO you should buy fresh standard isolators
and immediately coat them in DC4, then you should dynamically balance
your engine/prop combination. They then should last until engine TBO.
N1GV (RV-6A Flying 924TTAE Silicon Valley, CA)
Message 10
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| Subject: | Another one joins the fleet! |
Last evening was perfect, clear skies, zero wind and not too hot. I couldn't stand
it anymore! My new RV-7A has had its airworthiness certificate for almost
two weeks - it was time to fly!
So with the help of Mike and Roger Nightingale, and my son Roy, at 17:11 CDT I
finally got air under the tires! The pilot (me) was way too nervous to notice
much, but it seemed to fly great! Other than the Engine Monitoring System whining
at me every time I reduced power (it claimed I was shock cooling the cylinders),
it was a beautiful flight. Although the official Hobbes time was 0.3,
according to my ground crew the mission elapsed time was exactly 11 minutes!
Oh well, the first one is done. Now it's time to do a full inspection and then
start expanding the envelope, and gathering real data.
Thanks to everyone who provided encouragement and prodding, but especially Mike,
Roger, and Roy for their help as my ground crew; Terry Crouch and Jim Smith
for their technical counselor advice; and my excellent flight advisor Bernie Nitz.
You guys are the greatest!
Paul A. Fisher
Taylor Ridge, Illinois
RV-7A N18PF - FLYING!!
Message 11
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| Subject: | Another one joins the fleet! |
Well done Paul! Tis a wonderful feeling isn't it?
Get that flyoff done so you can join us at a RV flyin so we can shake
your hand and welcome you into this great flying community Vans has
created. LOE in October???
Randy McFarland
San Jose, Ca
7A 318 hours in BC, Mexico, and all over the Southwest
-----Original Message-----
From: owner-rv-list-server@matronics.com
[mailto:owner-rv-list-server@matronics.com] On Behalf Of Fisher Paul A.
Sent: Thursday, August 06, 2009 1:30 PM
Subject: RV-List: Another one joins the fleet!
--> <FisherPaulA@JohnDeere.com>
Last evening was perfect, clear skies, zero wind and not too hot. I
couldn't stand it anymore! My new RV-7A has had its airworthiness
certificate for almost two weeks - it was time to fly!
So with the help of Mike and Roger Nightingale, and my son Roy, at 17:11
CDT I finally got air under the tires! The pilot (me) was way too
nervous to notice much, but it seemed to fly great! Other than the
Engine Monitoring System whining at me every time I reduced power (it
claimed I was shock cooling the cylinders), it was a beautiful flight.
Although the official Hobbes time was 0.3, according to my ground crew
the mission elapsed time was exactly 11 minutes!
Oh well, the first one is done. Now it's time to do a full inspection
and then start expanding the envelope, and gathering real data.
Thanks to everyone who provided encouragement and prodding, but
especially Mike, Roger, and Roy for their help as my ground crew; Terry
Crouch and Jim Smith for their technical counselor advice; and my
excellent flight advisor Bernie Nitz. You guys are the greatest!
Paul A. Fisher
Taylor Ridge, Illinois
RV-7A N18PF - FLYING!!
Message 12
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| Subject: | Re: Std vs. Aerobatic Engine Vibration Mounts |
DC4 is Dow Corning 4 compound.
see : http://www.aircraftspruce.com/catalog/cspages/dc4.php
----- Original Message -----
From: Vanremog@aol.com
To: rv-list@matronics.com
Sent: Thursday, August 06, 2009 12:07 PM
Subject: Re: RV-List: Std vs. Aerobatic Engine Vibration Mounts
http://www.aircraftspruce.com/catalog/cspages/dc4.php
In a message dated 8/6/2009 7:45:18 A.M. Pacific Daylight Time, john@morg
ensen.com writes:
What is DC4?
John
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