Today's Message Index:
----------------------
1. 04:35 AM - Re: Re: Intercom Noise (darnpilot@aol.com)
2. 07:39 AM - Please explain this connector. (rparigoris)
3. 07:55 AM - Re: Re: Dual Shunts with Dynon EMS (John Volkober)
4. 09:03 AM - An Easy One (jonlaury)
5. 09:16 AM - Re: An Easy One (Ralph E. Capen)
6. 10:36 AM - Re: Please explain this connector. (Robert L. Nuckolls, III)
7. 10:38 AM - Re: An Easy One (jonlaury)
8. 10:43 AM - Re: An Easy One (Robert L. Nuckolls, III)
9. 10:55 AM - Re: Wiring diagram for Jabiru 3300 with a SD 8 on the Vac Pad (Robert L. Nuckolls, III)
10. 11:51 AM - Re: Please explain this connector. (rparigoris)
11. 01:50 PM - Re: Re: Intercom Noise (Bruce Gray)
12. 03:31 PM - Re: pretty red wire (Robert L. Nuckolls, III)
13. 07:40 PM - Housecleaning!!! (Fergus Kyle)
14. 11:43 PM - Dynon skyview current draw (ple190)
15. 11:43 PM - Re: Wiring diagram for Jabiru 3300 with a SD 8 on the Vac Pad (ple190)
Message 1
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| Subject: | Re: Intercom Noise |
Then why would I also be getting noise from my flap and fuel pump
motors?
The alternator and the voltage regulators were replaced during my
overhaul of the entire airplane.
I'm suspecting a ground problem. But just how to attack it is the
question. I (think) evereything is on one common
avionics ground buss.
I suppose my attack will be as follows:
Redo all the grounds at the ground bus.
Then recheck all the power leads.
Then get a filter plan on the power and/or ground.
(I've already put a big filter on the incoming alternator power line.)
Thoughts?
Jeff
Sent from my iPad
On Sep 4, 2010, at 12:05 AM, "Bruce Gray" <bgray@glasair.org> wrote:
> Then the problem is an ALT diode or a wiring ground/shield error.
>
>
>
> The easiest to check is the ALT. Pull it and send it to your favorite
auto electric overhaul shop.
>
>
>
> Bruce
> www.Glasair.org
>
> -----Original Message-----
> From: owner-aeroelectric-list-server@matronics.com
[mailto:owner-aeroelectric-list-server@matronics.com] On Behalf Of
darnpilot@aol.com
> Sent: Friday, September 03, 2010 11:34 PM
> To: aeroelectric-list@matronics.com
> Subject: Re: AeroElectric-List: Re: Intercom Noise
>
>
>
> Pull alt cb and no noise. No different with any radio configuration. I
also get noise occasionally from the electric motors of the flaps and
fuel pump when they are run. When I use the portable (9v) intercom the
noise is less, but still there. When I use ships power, the noise is a
little worse, but much less than the installed Sigtronics intercom. When
I use no intercom at all I can barely hear any noise, but it is still
there.
>
> Sent from my iPad
>
>
> On Sep 3, 2010, at 12:05 PM, "Bruce Gray" <bgray@glasair.org> wrote:
>
>> Trouble shooting electronic gremlins requires a systematic approach.
The most important thing to remember is to only change one variable at a
time.
>>
>>
>>
>> If you have swapped headsets and the noise remained, we can rule out
bad headsets.
>>
>>
>>
>> I would suggest the following decision tree.
>>
>>
>>
>> 1) Test the intercom in another aircraft if possible. If the
problem follows the intercom, the intercom is bad.
>>
>> 2) Test with the engine and ALL other electrical devices OFF
except the intercom. If no noise proceed to 3
>>
>> 3) Repeat 2 with engine running and ALT off.
>>
>> 4) Repeat 2 with engine and ALT on.
>>
>> 5) With engine off, turn on separately each other piece of
electronics.
>>
>> 6) Repeat 5 with engine and ALT on.
>>
>>
>>
>> Get back to me with the results.
>>
>>
>>
>> Are you using shielded wire? Is the shield only grounded at one end
(which is correct)?
>>
>> Bruce
>> www.Glasair.org
>>
>> -----Original Message-----
>> From: owner-aeroelectric-list-server@matronics.com
[mailto:owner-aeroelectric-list-server@matronics.com] On Behalf Of
darnpilot@aol.com
>> Sent: Thursday, September 02, 2010 8:46 PM
>> To: aeroelectric-list@matronics.com
>> Subject: Re: AeroElectric-List: Re: Intercom Noise
>>
>>
>>
>> Bruce. Why? Tell me more?
>>
>>
>>
>> I've used several different type headsets and they all have the same
issue.
>>
>> Jeff Darnall
>>
>> Jacksonville, FL
>>
>> 904-234-8718
>>
>> __i__
>>
>> *-----o--o--(_)--o--o-----*
>>
>
>
>
>
>
> -----Original Message-----
> From: Bruce Gray <bgray@glasair.org>
> To: aeroelectric-list@matronics.com
> Sent: Thu, Sep 2, 2010 8:41 pm
> Subject: RE: AeroElectric-List: Re: Intercom Noise
>
> I=99d say it=99s time to look at your headsets.
>
>
>
> Bruce
> www.Glasair.org
>
> -----Original Message-----
> From: owner-aeroelectric-list-server@matronics.com
[mailto:owner-aeroelectric-list-server@matronics.com] On Behalf Of
darnpilot@aol.com
> Sent: Thursday, September 02, 2010 8:17 PM
> To: aeroelectric-list@matronics.com
> Subject: AeroElectric-List: Re: Intercom Noise
>
>
>
> Bob,
>
>
>
> More data points:
>
> I installed a portable intercom in my plane. Its plugged in the new
Pilot mic & phone jacks. With only the internal 9v battery powering the
unit, I still get the noise in my headsets, but it is tolerable.
Intercom off = no noise. When I power the portable intercom from
ships power the noise is louder, but still tolerable...barely.
>
>
>
> Any ideas now?
>
> Jeff Darnall
>
> Jacksonville, FL
>
> 904-234-8718
>
> __i__
>
> *-----o--o--(_)--o--o-----*
>
>
>
>
>
>
>
>
>
>
> - The AeroElectric-List Email Forum -
> --> http://www.matronics.com/Navigator?AeroElectric-List
> - MATRONICS WEB FORUMS -
> --> http://forums.matronics.com
> - List Contribution Web Site -
> Thank you for your generous support!
> -Matt Dralle, List Admin.
> --> http://www.matronics.com/contribution
>
>
>
> ==========
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target=_blank>http://www.matronics.com/Navigator?AeroElectric-List
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> - The AeroElectric-List Email Forum -
> --> http://www.matronics.com/Navigator?AeroElectric-List
> - MATRONICS WEB FORUMS -
> --> http://forums.matronics.com
> - List Contribution Web Site -
> Thank you for your generous support!
> -Matt Dralle, List Admin.
> --> http://www.matronics.com/contribution
>
>
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>
href="http://www.matronics.com/Navigator?AeroElectric-List">http://www.m
atronics.com/Navigator?AeroElectric-List
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href="http://www.matronics.com/contribution">http://www.matronics.com/co
ntribution
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>
> - The AeroElectric-List Email Forum -
> --> http://www.matronics.com/Navigator?AeroElectric-List
> - MATRONICS WEB FORUMS -
> --> http://forums.matronics.com
> - List Contribution Web Site -
> Thank you for your generous support!
> -Matt Dralle, List Admin.
> --> http://www.matronics.com/contribution
>
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Message 2
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| Subject: | Please explain this connector. |
Hi Group
Can anyone explain:
**This connector to me?
**Exactly what type of wire the one is with the red translucent covering?
**Are these connectors and wire still commonly used today?
http://www.europaowners.org/forums/gallery2.php?g2_itemId=82207
Perhaps the jet was built in modular sections and uses these connectors to connect
one section to the next?
Select Full size 2592 x 1944 for better resolution.
Thx.
Ron Parigoris
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=311360#311360
Message 3
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| Subject: | Re: Dual Shunts with Dynon EMS |
Thank you for the feedback. I did leave off the one wire for the load
meter. I'll take a look at the "book" and make sure I order the
correct
switch for the job.
John
-----Original Message-----
From: owner-aeroelectric-list-server@matronics.com
[mailto:owner-aeroelectric-list-server@matronics.com] On Behalf Of Bob
McCallum
Sent: Friday, September 03, 2010 5:28 PM
Subject: RE: AeroElectric-List: Re: Dual Shunts with Dynon EMS
John;
The drawing is a little small to see the detail clearly but....
Yes, I think you've got it. (you've depicted a four pole switch, one
pole of
which you aren't using which is fine.)
You need a second wire to your load meter from the upper pole of the
switch
to complete the shunt circuit.
The progressive transfer feature which I think you've depicted on the
upper
two poles isn't needed.
The switch need be only two position double throw, without a centre off
position which it appears you've drawn.
But yes, this is basically correct without nitpicking the drawing
details
which are waaay superior to anything I could come up with.:-):-):-)
Bob McC
_____
From: owner-aeroelectric-list-server@matronics.com
[mailto:owner-aeroelectric-list-server@matronics.com] On Behalf Of John
Volkober
Sent: Friday, September 03, 2010 5:12 PM
Subject: RE: AeroElectric-List: Re: Dual Shunts with Dynon EMS
Like this:
I tend to have a habit of taking the long way around the bush.
John
-----Original Message-----
From: owner-aeroelectric-list-server@matronics.com
[mailto:owner-aeroelectric-list-server@matronics.com] On Behalf Of
robert.mccallum2@sympatico.ca
Sent: Friday, September 03, 2010 10:09 AM
Subject: RE: AeroElectric-List: Re: Dual Shunts with Dynon EMS
So use a 3PDT switch for turning on the aux alternator. One pole
switches
the alternator on/off the other two switch the shunts. ????????
Bob McC
> From: jvolkober@comcast.net
> To: aeroelectric-list@matronics.com
> Subject: RE: AeroElectric-List: Re: Dual Shunts with Dynon EMS
> Date: Fri, 3 Sep 2010 09:15:21 -0700
>
<jvolkober@comcast.net>
>
> I thought about the using the switch directly and may still do that.
Using
> the relay tied to the switch for the auxiliary alternator set it up so
the
> shunt selection would occur when the auxiliary alternator was turned
on,
> eliminating the need to toggle two switches.
>
> John
>
> -----Original Message-----
> From: owner-aeroelectric-list-server@matronics.com
> [mailto:owner-aeroelectric-list-server@matronics.com] On Behalf Of
Robert
L.
> Nuckolls, III
> Sent: Friday, September 03, 2010 8:07 AM
> To: aeroelectric-list@matronics.com
> Subject: Re: AeroElectric-List: Re: Dual Shunts with Dynon EMS
>
> <nuckolls.bob@aeroelectric.com>
>
> At 06:08 AM 9/3/2010, you wrote:
<fran4sew@banyanol.com>
> >
> >Do not connect the two shunts in parallel. Doing that is the same
> >as connecting the two alternators in parallel. The Dynon would read
> >the higher of the two voltages, not the sum. Using a relay will work.
> >Joe
>
> Right on. I'll also suggest that unless the
> relay is really desirable from the perspective
> of reducing numbers of wires at the panel controls
> you might consider using just a DPDT switch
> as shown on the third page of:
>
> http://www.aeroelectric.com/Catalog/AEC/9007/AEC9007-700.pdf
>
>
> Bob . . .
>
>
>
>
>
>
>
&===============
>
>
>
http://www.matronics.com/Navigator?AeroElectric-List
http://forums.matronics.com
http://www.matronics.com/contribution
Message 4
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My starter contactor is the type that has two small terminals in addition to the
two large load 5/16" terminals.
I want to make sure that the spike catching diode is to be installed across the
"I" and "S" terminals so that the banded end of the diode faces the S terminal
and that there's a jumper from S to the hot side of the 5/16" terminals.
And does it matter which terminal (I or S) receives the switch leg of my START
button? I plan to use the I terminal for a stuck starter light.
Thanks,
John
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=311362#311362
Message 5
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Depending on who you got it from, it may already have the diode installed. Meanwhile,
here's the diagram that came with mine from B&C
Ralph Capen
-----Original Message-----
>From: jonlaury <jonlaury@impulse.net>
>Sent: Sep 4, 2010 11:59 AM
>To: aeroelectric-list@matronics.com
>Subject: AeroElectric-List: An Easy One
>
>
>My starter contactor is the type that has two small terminals in addition to the
two large load 5/16" terminals.
>
>I want to make sure that the spike catching diode is to be installed across the
"I" and "S" terminals so that the banded end of the diode faces the S terminal
and that there's a jumper from S to the hot side of the 5/16" terminals.
>
>And does it matter which terminal (I or S) receives the switch leg of my START
button? I plan to use the I terminal for a stuck starter light.
>
>Thanks,
>John
>
>
>Read this topic online here:
>
>http://forums.matronics.com/viewtopic.php?p=311362#311362
>
>
Message 6
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| Subject: | Re: Please explain this connector. |
At 09:36 AM 9/4/2010, you wrote:
><rparigor@suffolk.lib.ny.us>
>
>Hi Group
>
>Can anyone explain:
>**This connector to me?
>**Exactly what type of wire the one is with the red translucent covering?
>**Are these connectors and wire still commonly used today?
>
>http://www.europaowners.org/forums/gallery2.php?g2_itemId=82207
>
>Perhaps the jet was built in modular sections and uses these
>connectors to connect one section to the next?
>
>Select Full size 2592 x 1944 for better resolution.
These are one of many examples of devices crafted for
the IWTS (integrated wire termination systems) used
in many military, aerospace and high-end industrial
applications. Here's a toggle switch fitted with
IWTS
Emacs!
The idea behind it is to make as many of the system's
wire terminations with standard crimp tools as possible.
The terminal blocks you've found are just commoning points
for multiple branches of a circuit. Rather than crimp
on terminals and then attache with screws (ugh!) one
simple crimps on a pin (usually female) and stuffs
the pin into an environmentally sealed cavity to mate
with a captive pin therein.
Some of the earliest patents on this idea go back to
the 70's. Other products using this technology . . .
http://www.ducommun.com/pdf/jayel/10648.pdf
http://stevenengineering.com/tech_support/PDFs/31G-MS.pdf
Bob . . .
Message 7
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Ralph,
As you got yours from B&C, it's probably already got the diode internally. The
photo doesn't help me because it doesn't show diode installation/orientation.
I'm almost certain that the banded end faces the S terminal if it's between the
S & I. Less certain about the other questions, i.e. jumper, switch leg from START
switch, etc.
J
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=311368#311368
Message 8
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At 10:59 AM 9/4/2010, you wrote:
>
>My starter contactor is the type that has two small terminals in
>addition to the two large load 5/16" terminals.
>
>I want to make sure that the spike catching diode is to be installed
>across the "I" and "S" terminals so that the banded end of the diode
>faces the S terminal and that there's a jumper from S to the hot
>side of the 5/16" terminals.
???? What diagrams are you looking at? if your starter
contactor looks like . . .
http://www.aeroelectric.com/Pictures/Contactors/s702-1l.jpg
it MAY already have a diode installed. Look on the bottom
mounting flange. It might be marked "diode protected".
If not so marked, then the banded end of the diode
goes to the "S" terminal. The other end of the diode
goes to one of the mounting base bolts.
>And does it matter which terminal (I or S) receives the switch leg
>of my START button?
VERY much, the "S" terminal goes to the switch.
> I plan to use the I terminal for a stuck starter light.
Good.
Bob . . .
Message 9
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| Subject: | Re: Wiring diagram for Jabiru 3300 with a SD 8 on |
the Vac Pad
At 01:01 AM 9/4/2010, you wrote:
>
>Has anyone got a wiring diagram for this setup, the Z12 setup is
>close but needs some mod for the jab 3300 and different regulators.
>Any suggestions appreciated.
The z-figures are ARCHITECTURE drawings and not intended
to recommend or limit the kinds of regulators or alternators
used.
>Can both alternates feed continuously into the main bus and battery ?
>I'm setting up for IFR so need a bit more juice than the j3300 Alt provides
Hmmmm . . .what kind of IFR? Occasional penetration of
cloud cover? Occasional descent to conditions under
a cloud layer followed in short order by a published
approach?
The reason for asking is that setting up your system
to DEPEND on two mutually cooperating alternators
running in parallel for extended IFR ops, perhaps with
an autopilot, is not something I'd recommend for this
combination of hardware.
The idea behind all of Main/Aux alternator configurations
is that the main alternator does everything you need done
for all normal operations. The Aux alternator wilt get
you on the ground if the Main alternator is not available
but with a reduced power budget. Do I infer correctly that
your proposed IFR ops takes more than 15A to keep necessary
things operational?
What does your load analysis look like for your
IFR ops?
Bob . . .
Message 10
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| Subject: | Re: Please explain this connector. |
Hi Bob
Thx. for the explanation on the connector.
Can you shed some light on the wire that has red translucent insulation?
" **Exactly what type of wire the one is with the red translucent covering? "
http://www.europaowners.org/forums/gallery2.php?g2_itemId=82207
Ron Parigoris
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=311375#311375
Message 11
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| Subject: | Re: Intercom Noise |
I know you want to start digging into the wiring, and your noise from
other devices indicates that there is some problems there, but PLEASE
pull the ALT and take it to an auto electric shop and have them check
the diodes. There is thing called "infant mortality" in this industry
(out of box failure).
Bruce
www.Glasair.org
-----Original Message-----
From: owner-aeroelectric-list-server@matronics.com
[mailto:owner-aeroelectric-list-server@matronics.com] On Behalf Of
darnpilot@aol.com
Sent: Saturday, September 04, 2010 7:33 AM
Subject: Re: AeroElectric-List: Re: Intercom Noise
Then why would I also be getting noise from my flap and fuel pump
motors?
The alternator and the voltage regulators were replaced during my
overhaul of the entire airplane.
I'm suspecting a ground problem. But just how to attack it is the
question. I (think) evereything is on one common
avionics ground buss.
I suppose my attack will be as follows:
Redo all the grounds at the ground bus.
Then recheck all the power leads.
Then get a filter plan on the power and/or ground.
(I've already put a big filter on the incoming alternator power line.)
Thoughts?
Jeff
Sent from my iPad
On Sep 4, 2010, at 12:05 AM, "Bruce Gray" <bgray@glasair.org> wrote:
Then the problem is an ALT diode or a wiring ground/shield error.
The easiest to check is the ALT. Pull it and send it to your favorite
auto electric overhaul shop.
Bruce
www.Glasair.org
-----Original Message-----
From: owner-aeroelectric-list-server@matronics.com
[mailto:owner-aeroelectric-list-server@matronics.com] On Behalf Of
darnpilot@aol.com
Sent: Friday, September 03, 2010 11:34 PM
Subject: Re: AeroElectric-List: Re: Intercom Noise
Pull alt cb and no noise. No different with any radio configuration. I
also get noise occasionally from the electric motors of the flaps and
fuel pump when they are run. When I use the portable (9v) intercom the
noise is less, but still there. When I use ships power, the noise is a
little worse, but much less than the installed Sigtronics intercom. When
I use no intercom at all I can barely hear any noise, but it is still
there.
Sent from my iPad
On Sep 3, 2010, at 12:05 PM, "Bruce Gray" < <mailto:bgray@glasair.org>
bgray@glasair.org> wrote:
Trouble shooting electronic gremlins requires a systematic approach. The
most important thing to remember is to only change one variable at a
time.
If you have swapped headsets and the noise remained, we can rule out bad
headsets.
I would suggest the following decision tree.
1) Test the intercom in another aircraft if possible. If the problem
follows the intercom, the intercom is bad.
2) Test with the engine and ALL other electrical devices OFF except
the intercom. If no noise proceed to 3
3) Repeat 2 with engine running and ALT off.
4) Repeat 2 with engine and ALT on.
5) With engine off, turn on separately each other piece of
electronics.
6) Repeat 5 with engine and ALT on.
Get back to me with the results.
Are you using shielded wire? Is the shield only grounded at one end
(which is correct)?
Bruce
<http://www.Glasair.org> www.Glasair.org
-----Original Message-----
From: <mailto:owner-aeroelectric-list-server@matronics.com>
owner-aeroelectric-list-server@matronics.com
[mailto:owner-aeroelectric-list-server@matronics.com] On Behalf Of
<mailto:darnpilot@aol.com> darnpilot@aol.com
Sent: Thursday, September 02, 2010 8:46 PM
aeroelectric-list@matronics.com
Subject: Re: AeroElectric-List: Re: Intercom Noise
Bruce. Why? Tell me more?
I've used several different type headsets and they all have the same
issue.
Jeff Darnall
Jacksonville, FL
904-234-8718
__i__
*-----o--o--(_)--o--o-----*
-----Original Message-----
From: Bruce Gray < <mailto:bgray@glasair.org> bgray@glasair.org>
<mailto:aeroelectric-list@matronics.com> aeroelectric-list@matronics.com
Sent: Thu, Sep 2, 2010 8:41 pm
Subject: RE: AeroElectric-List: Re: Intercom Noise
I'd say it's time to look at your headsets.
Bruce
<http://www.glasair.org/> www.Glasair.org
-----Original Message-----
From: <mailto:owner-aeroelectric-list-server@matronics.com>
owner-aeroelectric-list-server@matronics.com [
<mailto:owner-aeroelectric-list-server@matronics.com?>
mailto:owner-aeroelectric-list-server@matronics.com] On Behalf Of
<mailto:darnpilot@aol.com> darnpilot@aol.com
Sent: Thursday, September 02, 2010 8:17 PM
aeroelectric-list@matronics.com
Subject: AeroElectric-List: Re: Intercom Noise
Bob,
More data points:
I installed a portable intercom in my plane. Its plugged in the new
Pilot mic & phone jacks. With only the internal 9v battery powering the
unit, I still get the noise in my headsets, but it is tolerable.
Intercom off = no noise. When I power the portable intercom from ships
power the noise is louder, but still tolerable...barely.
Any ideas now?
Jeff Darnall
Jacksonville, FL
904-234-8718
__i__
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Message 12
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| Subject: | re: pretty red wire |
At 01:47 PM 9/4/2010, you wrote:
><rparigor@suffolk.lib.ny.us>
>
>Hi Bob
>
>Thx. for the explanation on the connector.
>
>Can you shed some light on the wire that has red translucent insulation?
I'm not familiar with any particular wire with
that appearance. Examination of the cut ends shows
that it is thin . . .
A number of years ago I participated in the
study of some wiring fires aboard models of the
Hawker that were assembled in the UK.
There were some very exotic insulation materials
involved . . . all thin, all light, all expensive,
most harder to work with, and some quite spectacular
when participating in an arc-fed fire.
These airplanes were assembled about the same time frame as my
tour of duty at Lear on the GP-180 program.
I think I've told the List members about conversations
and decisions made for getting 22759 Tefzel called
out on the airplane. During that same time, there
were a lot of companies trying to come up with a
new insulation that was thinnest and lightest of
all. In small wires, insulation weight is a much
larger proportion of wire weight.
Over the years, numerous examples of the wire
engineer's most fruitful ideas have found their
way onto airplanes. In some cases with expensive
if not disastrous results. There are wire bundles
totalling thousands of miles of wire flying today
that would scare the socks off you.
I cannot say that the pretty red wire is either
good or bad . . . without knowing the specifics
of it's makeup and qualification testing, it's
not possible to know. I can tell you that airplanes
are flying with lots of PVC and Tefzel wire with
very low risk after a half century of field
experience.
Bob . . .
Message 13
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| Subject: | Housecleaning!!! |
Good lord but the exchanges are getting longer and longer. My Dad
said if you can't say it over the 'phone in 3 minutes, go over there!
Copying more than one previous thread is just laborious for us
thousands. Read the rules, girls.
Ferg
Message 14
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| Subject: | Dynon skyview current draw |
Has anybody got any actual figures for the current draw of a dual screen skyview
system with back up bat and dual ahars ??
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=311410#311410
Message 15
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| Subject: | Re: Wiring diagram for Jabiru 3300 with a SD 8 on the |
Vac Pad
Thanks Bob
It would only be occasional penetration of cloud for getting in or out not planning
to cruise in IMC. My load analysis is cruise about 15 amps but on approach
in Imc with lights off (all leds) and pitot on load is about 17 so not much
margin with the J3300 alternator (I'm estimating about 6 amps for a dual screen
Dynon skyview system ) Just don't want a discharge light on half way through
an approach !
Maybe its overkill to go dual Alternators ?
Paul
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http://forums.matronics.com/viewtopic.php?p=311409#311409
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