Today's Message Index:
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1. 02:10 PM - metal compatibility (Dennis Jones)
2. 02:32 PM - Re: metal compatibility (Hinde, Frank George (Corvallis))
3. 04:21 PM - Re: metal compatibility (jaybannist@cs.com)
4. 04:52 PM - Re: metal compatibility (Jim Baker)
5. 07:27 PM - Re: Head Set Jack shoring out (Emrath)
6. 08:40 PM - Re: Wing-to-Fuselage electrical connections (marcausman)
Message 1
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| Subject: | metal compatibility |
What issues would one face with the compatibility of brass and stainless
steel. Brass fittings, bolts and such through the firewall.
Thanks
Jonsey
Message 2
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| Subject: | metal compatibility |
None, they are both inert enough not to cause problems from corrosion.
Frank
________________________________
From: owner-aeroelectric-list-server@matronics.com [mailto:owner-aeroelectr
ic-list-server@matronics.com] On Behalf Of Dennis Jones
Sent: Wednesday, October 22, 2008 2:07 PM
Subject: AeroElectric-List: metal compatibility
What issues would one face with the compatibility of brass and stainless st
eel. Brass fittings, bolts and such through the firewall.
Thanks
Jonsey
Message 3
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| Subject: | Re: metal compatibility |
Inert or not (which has nothing to do with galvanic activity) brass and stainless
steel a pretty far apart on the chart of galvanic activity.? In the presence
of moisture, they will corrode.
Jay in Dallas
-----Original Message-----
From: Hinde, Frank George (Corvallis) <frank.hinde@hp.com>
Sent: Wed, 22 Oct 2008 4:26 pm
Subject: RE: AeroElectric-List: metal compatibility
None, they are both inert enough not to cause problems from
corrosion.
?
Frank
From:
owner-aeroelectric-list-server@matronics.com
[mailto:owner-aeroelectric-list-server@matronics.com] On Behalf Of Dennis
Jones
Sent: Wednesday, October 22, 2008 2:07 PM
aeroelectric-list@matronics.com
Subject: AeroElectric-List: metal
compatibility
What issues would one face with the compatibility
of brass and stainless steel. Brass fittings, bolts and such through the
firewall.
?
Thanks
Jonsey
ist">http://www.matronics.com/Navigator?AeroElectric-List
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Message 4
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| Subject: | Re: metal compatibility |
X-mailer: Pegasus Mail for Windows (4.41)
X-SpamReason %%SpamReason%%:
> What issues would one face with the compatibility of brass and stainless steel.
Brass fittings, bolts and such through the firewall.
http://www.eaa1000.av.org/technicl/corrosion/galvanic.htm
The info is there to find.....
Jim Baker
580.788.2779
Elmore City, OK
Message 5
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| Subject: | RE: Head Set Jack shoring out |
Bob,
I spoke to the electric man at our airport about this issue. He claims that
the jacks have a 28v tip to accommodate BOSE head sets in the plane. It
seems that the shorting occurs when the jack in plugged in which shorts out
the audio panel's modulation side of panel. Does this make any sense?
Marty
Time: 08:19:34 PM PST US
From: "Robert L. Nuckolls, III" <nuckolls.bob@cox.net>
Subject: Re: AeroElectric-List: Head Set Jack shoring out
At 06:49 PM 10/20/2008 -0500, you wrote:
>
>Bob,
>
>I received this message from a FBO where I rent planes. Any idea why
>this is even possible?
>
>"When flying Diamond aircraft at Wings of Eagles, headsets MUST be
>plugged in BEFORE turning the radios on. If this procedure is not
>followed, it could result in the headset jack shorting out, which
>renders the jack inoperative & obviously not being able to communicate
>effectively. Your adherence to this practice will result in a more
>pleasant flight experience and less aircraft down time due to
>maintenance. Thank you in advance for your cooperation"
I am unaware of the physics that might justify such a protocol.
It is true that for stereo headphones and depending on the
design of the jack, right and left channels can be momentarily
shorted together but I'm betting these are not stereo headset
installations . . . and even so, momentary shorts between channels
shouldn't be big deal.
I've never encountered a microphone or headset installation
where engaging or disengaging the connector while the radios
are ON presents any kind of risk to the equipment. It would
be interesting to talk to the technicians who are making repairs
alleged to have been precipitated by ungraceful mating of
headset connectors.
Bob. . .
M
Message 6
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| Subject: | Re: Wing-to-Fuselage electrical connections |
Here's a link with pictures and part numbers for AMP CPC connectors, which work
well for power (not coax) wires.
http://www.verticalpower.com/forums/showthread.php?t=634
--------
Marc Ausman
http://www.verticalpower.com
RV-7 IO-390 Flying
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p 9953#209953
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