Today's Message Index:
----------------------
1. 05:45 AM - Fw: Questions (Jerry Grimmonpre)
2. 06:05 AM - Re: Z-25 capacitor failure (Bill Boyd)
3. 06:37 AM - Re: Fw: Questions (Michael T. Ice)
4. 07:36 AM - Re: Fw: Questions (Bob White)
5. 08:04 AM - Re: Full Auto (Sam Marlow)
6. 08:39 AM - Garmin 396/496 Display? (Eric Parlow)
7. 09:07 AM - Re: Garmin 396/496 Display? (Bill Denton)
8. 09:36 AM - KLN-89B Installation Manual? (Kevin Horton)
9. 09:36 AM - Re: Full Auto (Bret Smith)
10. 10:20 AM - BMA Power Board? (Eric Parlow)
11. 11:35 AM - Re: KLN-89B Installation Manual? (Kevin Horton)
12. 11:47 AM - Re: BMA Power Board? (Ernest Christley)
13. 12:14 PM - 2 Grounds (Sam Marlow)
14. 01:51 PM - Re: BMA Power Board? (CozyGirrrl@aol.com)
15. 02:58 PM - Larger fuse link (Bill Steer)
16. 05:15 PM - Re: Garmin 396/496 Display? (Ed Holyoke)
Message 1
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Bob ...
Forwarded question from my son to the AeroElectric list
Thanks for your answer ...
Jerry Grimmonpre
----- Original Message -----
From: GARY GRIMMONPRE
Sent: Sunday, February 25, 2007 4:32 PM
Subject: Questions
I have a question about the placement of a diode on a continuous duty
relay that only has one small lug on the outside that is looking for a
ground through the battery switch to close the big contacts in the
relay. The relays illustrated in the s701-1.jpg and s701-2.jpg files
only show the routing of diodes on relays with two small lugs on the
outside. The relays I have only have one small lug. I read the whole
"Lets talk about starter solenoids" article to try and figure out how to
orient a diode in the system I have and still came up with a blank.
Could you shed some light on this for those of us who have this same
system already installed and don't want to change wiring. Is a diode
really needed in the system described? The battery master solenoid I
have gets power internally from the battery side lug and gets its ground
from the master switch, I'm sorry if I'm repeating myself. Thanks for
your insight..
Message 2
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| Subject: | Re: Z-25 capacitor failure |
'Tis a dilemma, Charlie. The cap is mounted to the panel that's going
into the plane soon, along with lots of other electrical goodies. It
can be removed with minor re-wiring annoyance. The cap is as-supplied
by B&C, and while I am at work now and can't check it, I recall the
rating as 50WVDC.
The bigger question is whether I need the cap in the circuit. It's a
standby alternator, I will always have the big alternator to recharge
an accidentally-drained battery, and will always have the battery
hard-wired to the relay that controls DC output from the SD-8. I am
increasingly convinced the cap is superfluous in my application, but
not certain that it isn't needed, somehow, to stabilize and protect
the regulator when the SD-8 is running un-loaded. I think even then,
it's not required. Can someone clarify that?
I'd move the relay to the AC side of the regulator except that would
render my LED trouble light for the SD-8 unworkable as built, and my
home-brew annunciator is all built up now; too late for any easy
changes to it. I want to keep the capability of alerting me when that
crowbar relay opens. I realize the low voltage that would soon
develop would be eventual notice of failure, by way of EIS alarms, if
the unit crowbarred while acting as the sole source of battery
charging power, but I prefer to keep the annunciation system as -is.
That means not moving the relay, I guess. Sheesh...
-Bill B
On 2/25/07, Charlie England <ceengland@bellsouth.net> wrote:
>
> It's a shame you've already installed it; there would probably be very
> little weight or size penalty if you had used a cap with a higher
> voltage rating.
>
> Charlie
>
Message 3
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| Subject: | Re: Fw: Questions |
Jerry,
I hope you get a better answer than what I am going to supply. My very basic understanding
is that the diodes are there to protect your switches from wearing
out. There is supposed to be some sort of arcing that goes on when you turn the
switch on and off which can be lessened or nullified with a diode. How much
longer will your switch last? Is it worth it for the $time$ spent worrying about
it? Good questions? Anyone?
Mike Ice
RV-9
Anchorage, Alaska
----- Original Message -----
From: Jerry Grimmonpre
To: AeroElectric-list@matronics.com
Sent: Monday, February 26, 2007 4:43 AM
Subject: AeroElectric-List: Fw: Questions
Bob ...
Forwarded question from my son to the AeroElectric list
Thanks for your answer ...
Jerry Grimmonpre
----- Original Message -----
From: GARY GRIMMONPRE
To: Jerry Grimmonpre
Sent: Sunday, February 25, 2007 4:32 PM
Subject: Questions
I have a question about the placement of a diode on a continuous duty relay that
only has one small lug on the outside that is looking for a ground through
the battery switch to close the big contacts in the relay. The relays illustrated
in the s701-1.jpg and s701-2.jpg files only show the routing of diodes on
relays with two small lugs on the outside. The relays I have only have one small
lug. I read the whole "Lets talk about starter solenoids" article to try and
figure out how to orient a diode in the system I have and still came up with
a blank. Could you shed some light on this for those of us who have this same
system already installed and don't want to change wiring. Is a diode really
needed in the system described? The battery master solenoid I have gets power
internally from the battery side lug and gets its ground from the master switch,
I'm sorry if I'm repeating myself. Thanks for your insight..
Message 4
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| Subject: | Re: Fw: Questions |
Any time you interrupt the current in a coil, the magnetic field
collapse induces a voltage in the coil. The voltage induced is
dependent on how fast the field changes and is the opposite polarity
to the applied voltage that caused the current flow. It can produce
arching in the switch as you have surmised. Since this voltage is the
opposite polarity, it will forward bias a diode placed across the coil
with the anode connected to the negative terminal and the cathode
connected to the positive terminal. The diode is a low resistance load
for the induced voltage which limits it to the forward voltage of the
diode.
On the solenoids with a single terminal that needs to be grounded to
activate the coil, the other side of the coil is connected internally
to one of the contact terminals. That terminal must be connected to
the battery for proper operation. Proper placement of the suppression
diode is cathode to the battery terminal and anode to the terminal to
the switch.
It is a good idea to include the diode.
Bob W.
On Mon, 26 Feb 2007 05:34:24 -0900
"Michael T. Ice" <aurbo@ak.net> wrote:
> Jerry,
>
> I hope you get a better answer than what I am going to supply. My very basic
understanding is that the diodes are there to protect your switches from wearing
out. There is supposed to be some sort of arcing that goes on when you turn
the switch on and off which can be lessened or nullified with a diode. How much
longer will your switch last? Is it worth it for the $time$ spent worrying
about it? Good questions? Anyone?
>
> Mike Ice
> RV-9
> Anchorage, Alaska
> ----- Original Message -----
> From: Jerry Grimmonpre
> To: AeroElectric-list@matronics.com
> Sent: Monday, February 26, 2007 4:43 AM
> Subject: AeroElectric-List: Fw: Questions
>
>
> Bob ...
>
> Forwarded question from my son to the AeroElectric list
> Thanks for your answer ...
> Jerry Grimmonpre
>
> ----- Original Message -----
> From: GARY GRIMMONPRE
> To: Jerry Grimmonpre
> Sent: Sunday, February 25, 2007 4:32 PM
> Subject: Questions
>
> I have a question about the placement of a diode on a continuous duty relay
that only has one small lug on the outside that is looking for a ground through
the battery switch to close the big contacts in the relay. The relays illustrated
in the s701-1.jpg and s701-2.jpg files only show the routing of diodes
on relays with two small lugs on the outside. The relays I have only have one
small lug. I read the whole "Lets talk about starter solenoids" article to try
and figure out how to orient a diode in the system I have and still came up with
a blank. Could you shed some light on this for those of us who have this same
system already installed and don't want to change wiring. Is a diode really
needed in the system described? The battery master solenoid I have gets power
internally from the battery side lug and gets its ground from the master switch,
I'm sorry if I'm repeating myself. Thanks for your insight..
>
>
>
>
--
N93BD - Rotary Powered BD-4 - http://www.bob-white.com
First Flight: 11/23/2006 7:50AM - 3.3 Hours Total Time
Cables for your rotary installation - http://www.roblinphoto.com/shop/
Message 5
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I checked out that figure, and all the others as well, but It requires
tripping the battery switch and a 1-3 E-Bus Alternate feed switch. It's
not full auto switching. Isn't there something simpler?
Robert L. Nuckolls, III wrote:
> <nuckollsr@cox.net>
>
> At 02:07 PM 2/20/2007 -0500, you wrote:
>
>>
>> I know I read it somewhere on the web, a fully auto Stby Alt system.
>> All you have to do is reduce loads until the light goes out, and
>> continue uninterrupted until your planned stop fuel stop. Anyone
>> remember reading something like that? I'm ready for that step in my
>> RV10, and don't want to continue with a overly complicated system.
>> KISS is my aim!
>
> It's the B&C SD-20 with details at
> http://bandc.biz
> and you can check out Figure Z-12 at
> http://aeroelectric.com/articles/Rev11/AppZ_R11J.pdf
> for a suggested architecture to go with it.
>
> Bob . . .
>
> ----------------------------------------
> ( IF one aspires to be "world class", )
> ( what ever you do must be exercised )
> ( EVERY day . . . )
> ( R. L. Nuckolls III )
> ----------------------------------------
>
>
Message 6
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| Subject: | Garmin 396/496 Display? |
What would be required to "tap" into the Garmin 396/496 to send its display
out to a 12" LCD?
Or alternatively...........
Could its weather info be extracted and displayed on another EFIS?
ERic-
RV-10, N104EP
Message 7
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| Subject: | Garmin 396/496 Display? |
A PhD from MIT?
>From what I have read, it would probably be easier to just shell out the
$13K for the GMX200 display and the GDL69 XM receiver.
It's not just a matter of splicing into a couple of wires...
-----Original Message-----
From: owner-aeroelectric-list-server@matronics.com
[mailto:owner-aeroelectric-list-server@matronics.com]On Behalf Of Eric
Parlow
Sent: Monday, February 26, 2007 10:36 AM
Subject: AeroElectric-List: Garmin 396/496 Display?
<ericparlow@hotmail.com>
What would be required to "tap" into the Garmin 396/496 to send its display
out to a 12" LCD?
Or alternatively...........
Could its weather info be extracted and displayed on another EFIS?
ERic-
RV-10, N104EP
Message 8
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| Subject: | KLN-89B Installation Manual? |
A friend is having problems with his KLN-89B. I suspect a wiring
problem. The installation was done by the previous owner, and my
friend does not have the Installation Manual. I would be very
appreciative if anyone could point me at an electronic copy of the
KLN-89B Installation Manual.
Thanks.
Kevin Horton RV-8 (finishing kit)
Ottawa, Canada
http://www.kilohotel.com/rv8
Message 9
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Sam, there is... www.verticalpower.com
Bret Smith
RV-9A "Wings"
Blue Ridge, GA
www.FlightInnovations.com
----- Original Message -----
From: Sam Marlow
To: aeroelectric-list@matronics.com
Sent: Monday, February 26, 2007 11:03 AM
Subject: Re: AeroElectric-List: Full Auto
I checked out that figure, and all the others as well, but It requires
tripping the battery switch and a 1-3 E-Bus Alternate feed switch. It's
not full auto switching. Isn't there something simpler?
Robert L. Nuckolls, III wrote:
<nuckollsr@cox.net>
At 02:07 PM 2/20/2007 -0500, you wrote:
<sam@fr8dog.net>
I know I read it somewhere on the web, a fully auto Stby Alt
system. All you have to do is reduce loads until the light goes out, and
continue uninterrupted until your planned stop fuel stop. Anyone
remember reading something like that? I'm ready for that step in my
RV10, and don't want to continue with a overly complicated system. KISS
is my aim!
It's the B&C SD-20 with details at
http://bandc.biz
and you can check out Figure Z-12 at
http://aeroelectric.com/articles/Rev11/AppZ_R11J.pdf
for a suggested architecture to go with it.
Bob . . .
----------------------------------------
( IF one aspires to be "world class", )
( what ever you do must be exercised )
( EVERY day . . . )
( R. L. Nuckolls III )
----------------------------------------
Message 10
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| Subject: | BMA Power Board? |
What the are the list's thoughts on the BMA Power Board?
See:
http://www.bluemountainavionics.com/powerboard.php
ERic--
RV-10, N104EP
Message 11
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| Subject: | Re: KLN-89B Installation Manual? |
I received an Install Manual. Thanks Stein.
Kevin
On 26 Feb 2007, at 12:33, Kevin Horton wrote:
> <khorton01@rogers.com>
>
> A friend is having problems with his KLN-89B. I suspect a wiring
> problem. The installation was done by the previous owner, and my
> friend does not have the Installation Manual. I would be very
> appreciative if anyone could point me at an electronic copy of the
> KLN-89B Installation Manual.
>
> Thanks.
>
> Kevin Horton RV-8 (finishing kit)
> Ottawa, Canada
> http://www.kilohotel.com/rv8
>
Message 12
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| Subject: | Re: BMA Power Board? |
Eric Parlow wrote:
> <ericparlow@hotmail.com>
>
> What the are the list's thoughts on the BMA Power Board?
>
The "list's" thoughts?
I think the list has been diagnosed as a bipolar schizophrenic, with a
multi-personality disorder and visions of grandeur.
Sorry, couldn't resist. 8*)
I think it is an expensive solution looking for a problem to solve...but
I also have visions of grandeur (and of knowing what I'm talking about).
--
,|"|"|, Ernest Christley |
----===<{{(oQo)}}>===---- Dyke Delta Builder |
o| d |o http://ernest.isa-geek.org |
Message 13
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Do I need a separate ground for the Avionics, including the phones. Or
will the ganged firewall (cool side) ground block be satisfactory for
all my grounds? I think the audio panel (GMA 340) has a ground block.
Thanks,
Sam Marlow
Message 14
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| Subject: | Re: BMA Power Board? |
In a message dated 2/26/2007 1:51:14 PM Central Standard Time,
echristley@nc.rr.com writes:
I think it is an expensive solution looking for a problem to solve...but
I also have visions of grandeur (and of knowing what I'm talking about).
==============================================
Yes, but consider this, Greg's 2 passenger Jet-Cozy has a total of 5 or 6
switches not including the few on his stick grip and radios. I think he had
simplicity in mind.
...Chrissi
CG Products
www.CozyGirrrl.com
Cozy Mk-IV RG 13B-turbo
Plans #957 Chapter? big pieces done, details, details
<BR><BR><BR>**************************************<BR> AOL now offers free
email to everyone. Find out more about what's free from AOL at
http://www.aol.com.
Message 15
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| Subject: | Larger fuse link |
Hi, Bob. I need to put a fuse link in a 14 AWG wire - the endurance buss
feed in Z-1. The fuselink article on your site says to contact you if fuse
links larger than 22 AWG are needed. Is there an article for the larger
fuse link?
Thanks very much for your help.
Bill
Message 16
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| Subject: | Garmin 396/496 Display? |
There are a large number of outfits selling software capable of
displaying XM weather and GPS mapping info. Most of them are using
tablet computers.
Pax,
Ed Holyoke
-----Original Message-----
From: owner-aeroelectric-list-server@matronics.com
[mailto:owner-aeroelectric-list-server@matronics.com] On Behalf Of Eric
Parlow
Sent: Monday, February 26, 2007 8:36 AM
Subject: AeroElectric-List: Garmin 396/496 Display?
<ericparlow@hotmail.com>
What would be required to "tap" into the Garmin 396/496 to send its
display
out to a 12" LCD?
Or alternatively...........
Could its weather info be extracted and displayed on another EFIS?
ERic-
RV-10, N104EP
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