Today's Message Index:
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1. 09:45 AM - WTB Needle Type Trim Indicators (japhillipsga@aol.com)
2. 06:27 PM - Re: Re: Sealing Around Engine Baffles (japhillipsga@aol.com)
Message 1
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| Subject: | WTB Needle Type Trim Indicators |
Last thing I need is a pair on RP2 Ray Allen Needle Type Trim Indicators.
New or used, I'll trade the two LED type I have now if you want them, I'l
l pay shipping. Thanks, Bill RV-8a wiring
-----Original Message-----
From: RV8-List Digest Server <rv8-list@matronics.com>
Sent: Tue, Mar 30, 2010 2:59 am
Subject: RV8-List Digest: 1 Msgs - 03/29/10
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oday's Message Index:
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1. 05:17 PM - Re: Sealing Around Engine Baffles (Speedy11@aol.com)
_______________________________ Message 1 ______________________________
_______
ime: 05:17:11 PM PST US
rom: Speedy11@aol.com
ubject: RV8-List: Re: Sealing Around Engine Baffles
Matt,
say horsepucky!
nstall your engine baffling. Go fly the airplane. Then spend hours
utting red RTV in every crevasse and fly it again. You will notice there
is
no difference in your CHTs or Oil Temp. None.
ow - if your goal is maximum speed, then you will want to pay more
ttention to sealing the air cooling flow since it produces 30-40% of your
verall drag. But, if you are trying to maximize speed, there are more
mportant
things to do to reduce cooling drag than filling every tiny opening with
TV. Making a plenum is more important. Improving the exit air flow is
ore important. Optimizing the intake/exit ratio is more important. Once
hose are done, then sealing all tiny openings with RTV is the final step.
flew my RV-8 without RTV sealing the baffling and then sealed it
arefully with RTV. Zero difference in any temperatures. None.
tan Sutterfield
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Message 2
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| Subject: | Re: Sealing Around Engine Baffles |
Stan, I've never met you, but your making a ton of sense. I've been known
to pole vault over mouse turds a few times and common sense has to prevai
l. Thanks for the info and assistance you gave me on my MGL EFIS. now in
my 8a. Best regards, Bill
-----Original Message-----
From: Speedy11@aol.com
Sent: Mon, Mar 29, 2010 8:14 pm
Subject: RV8-List: Re: Sealing Around Engine Baffles
Matt,
I say horsepucky!
Install your engine baffling. Go fly the airplane. Then spend hours putt
ing red RTV in every crevasse and fly it again. You will notice there is
no difference in your CHTs or Oil Temp. None.
Now - if your goal is maximum speed, then you will want to pay more attent
ion to sealing the air cooling flow since it produces 30-40% of your overa
ll drag. But, if you are trying to maximize speed, there are more importa
nt things to do to reduce cooling drag than filling every tiny opening wit
h RTV. Making a plenum is more important. Improving the exit air flow is
more important. Optimizing the intake/exit ratio is more important. Onc
e those are done, then sealing all tiny openings with RTV is the final ste
p.
I flew my RV-8 without RTV sealing the baffling and then sealed it careful
ly with RTV. Zero difference in any temperatures. None.
Stan Sutterfield
========================
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-= Use the Matronics List Features Navigator to browse
-= the many List utilities such as List Un/Subscription,
-= Archive Search & Download, 7-Day Browse, Chat, FAQ,
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