Today's Message Index:
----------------------
1. 06:22 AM - Re: What about an electronic distribution panel? (Robert L. Nuckolls, III)
2. 07:02 AM - Re: What about an electronic distribution panel? (Gaye and Vaughn)
3. 07:05 AM - Re: 12V batteries in series - a few more followup questions (rtitsworth)
4. 09:25 AM - Re: What about an electronic distribution panel? (Les Goldner)
5. 10:32 AM - Introduction (hansriet)
6. 10:33 AM - Re: AeroElectric.com is in new digs . . . (hansriet)
7. 01:41 PM - Re: Introduction (Hinde, Frank George (Corvallis))
Message 1
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Subject: | Re: What about an electronic distribution panel? |
At 11:27 PM 4/11/2007 -0700, you wrote:
>I am building a Zenith 701 with a Rotax 912ULS engine and would like to
>have opinions about using a commercial panel power distribution system
>like EXP Bus Products EXP2V (see
><http://www.aircraftspruce.com/catalog/elpages/expbus.php>http://www.aircraftspruce.com/catalog/elpages/expbus.php)
>. My plane will have the normal electrical stuff: landing lights, radios,
>intercom, Dynon glass cockpit instruments, nav and strobe lights, VHF and
>Mode C radios, an EZ single axis autopilot, and a few lighted steam gauges.
>
>I know aeroelectric says keep it simple and use switches rather than
>breakers, but I don t have a lot of room left on my panel and this "box"
>looks easy to install and flashes indication that a breaker has been
>tripped (with an indicator module option).
>
>Do you know if this device provides for an essential buss or will isolates
>a bad generator? Is this overkill? Are there specific up or downsides I
>need to know about? Is it a good way to go?
>
>Thanks for the advice,
Products like this PRE-design your electrical
system not only with a selection of hardware but
they establish the architecture as well. What you
see is what you get. If there's a feature you don't
need, it's not an easy option to eliminate it.
If there's a feature you want that is not offered,
it's not easy (or neat) to add.
When it comes time to do repairs in the future,
any repair needed to one of these assemblies will
be more arduous than for the simple row of switches
and associated hardware for which you posses some
personal understanding.
Finally, consider the cost. For the price of these
products, you can pretty much purchase ALL the switches,
wire, contactors, fuse blocks and then form them into
architecture and features that exactly meet your needs.
The only advantage for choosing the pre-fabricated
route is perhaps a savings of having to make some
decisions and acquire understanding. The price for
this relief may result in a system that is less than
the best we know how to do and will ultimately have
a higher cost of ownership.
Go to http://aeroelectric.com and do a search on
"exp-bus". There have been a number of detailed
discussions on this topic in past years.
These products probably perform as advertised.
This isn't an issue of functionality or safety.
It is an issue of how much command and control
of your destiny you're willing to hand over to
a pre-fab shop and how much you're willing to pay
them to take that command and control.
Bob . . .
----------------------------------------
( IF one aspires to be "world class", )
( what ever you do must be exercised )
( EVERY day . . . )
( R. L. Nuckolls III )
----------------------------------------
Message 2
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Subject: | Re: What about an electronic distribution panel? |
I had planned to use the EXP2V bus in my Europa and had, in fact,
purchased it. After several attempts to call and email in order to get
info so that I could wire in a second alternator, I sent it back after 9
months because I did not receive anything other than automated
responses. Since I did not really need to know that they had received my
message, but needed to know if it could accommodate a second alternator.
I will not deal with unresponsive vendors. Anyway after 9 months, I had
studied The AeroElectic Connection enough to realize the shortcomings of
their distribution panel and enough knowledge to proceed without it. As
Bob said, if you are trying to do something other than what the panel
was designed to do, you would be better off gaining the understanding
necessary to do it yourself. The bonus later on is the ability to
trouble shoot and make changes if you decide to modify your panel in
some way.
Vaughn Teegarden
my 2 cents worth
----- Original Message -----
From: Les Goldner
To: aeroelectric-list@matronics.com
Sent: Thursday, April 12, 2007 2:27 AM
Subject: AeroElectric-List: What about an electronic distribution
panel?
I am building a Zenith 701 with a Rotax 912ULS engine and would like
to have opinions about using a commercial panel power distribution
system like EXP Bus Products' EXP2V (see
http://www.aircraftspruce.com/catalog/elpages/expbus.php) . My plane
will have the normal electrical stuff: landing lights, radios, intercom,
Dynon glass cockpit instruments, nav and strobe lights, VHF and Mode C
radios, an EZ single axis autopilot, and a few lighted steam gauges.
I know aeroelectric says keep it simple and use switches rather than
breakers, but I don't have a lot of room left on my panel and this "box"
looks easy to install and flashes indication that a breaker has been
tripped (with an indicator module option).
Do you know if this device provides for an essential buss or will
isolates a bad generator? Is this overkill? Are there specific up or
downsides I need to know about? Is it a good way to go?
Thanks for the advice,
Les
Message 3
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Subject: | 12V batteries in series - a few more followup questions |
Bob, etal,
I might have missed it (I re-checked), but I never saw an answer/reply to
the questions below. As always, I appreciate any thoughts you offer. I'm
indebted to your efforts/experience.
Rick
-----Original Message-----
From: rtitsworth [mailto:rtitsworth@mindspring.com]
Sent: Thursday, April 05, 2007 1:14 AM
Subject: RE: AeroElectric-List: 12V batteries in series - a few more
followup questions
BobN,
Thanks much (as usual)!!! I'm going to try the omega bend connector, it
should be pretty simple with the thin material - probably better than the
straight/flat connector, perhaps not as robust as the 4AWG cable - sort of a
compromise in my mind.
Follow-up question#1: Let's say sometime in the future, one of the battery
terminals or the omega connector strap comes loose or breaks off in flight.
How would I know (during the flight)? My ignorant guesses below.
a) The ammeter (shunt on the battery lead) would move from perhaps a slight
charging state to zero, but that might not be noticeable.
b) I understand the alternator would not be happy without the battery. But,
how would I know? Voltage fluctuations? Potential overvoltage (crowbar)
scenario?
c) Other???
Follow-up question #2: What type of nut should I use on the threaded
battery terminals? I'm assuming just a plain (AN345) nut (Cad plated,
Stainless, other)? However, it would be nice to safety it somehow (perhaps
overkill). Would it make sense to use two nuts (a jam nut)? Would it make
sense to use a nylon lock nut as the 2nd jam nut? Would it make most sense
to just use one all metal stop nut (AN363)
Follow-up question #3: Assuming a ground stud through the firewall, what
should the stud be made of (steel) (zink plated) ((brass) (other)? What
type of nut(s) should I use on it (same as the battery terminals)? What
type of nut should I use on the engine side of the engine ground braid?
Rick Titsworth
rtitsworth@mindspring.com
Detroit, Michigan
Message 4
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Subject: | What about an electronic distribution panel? |
Thanks for the advice guys. You just saved me a few hundred dollars and a
lot of aggravation... So if you or Bob or Bill come to Berkeley or Petaluma,
let me know and I will buy you lunch. (Bill I know you live close by, so I
expect to pay-up)
Regards,
Les
Les Goldner
188 Gravatt Dr.
Berkeley, CA 94705
510-549-1622
_____
From: owner-aeroelectric-list-server@matronics.com
[mailto:owner-aeroelectric-list-server@matronics.com] On Behalf Of Gaye and
Vaughn
Sent: Thursday, April 12, 2007 7:02 AM
Subject: Re: AeroElectric-List: What about an electronic distribution panel?
I had planned to use the EXP2V bus in my Europa and had, in fact, purchased
it. After several attempts to call and email in order to get info so that I
could wire in a second alternator, I sent it back after 9 months because I
did not receive anything other than automated responses. Since I did not
really need to know that they had received my message, but needed to know if
it could accommodate a second alternator. I will not deal with unresponsive
vendors. Anyway after 9 months, I had studied The AeroElectic Connection
enough to realize the shortcomings of their distribution panel and enough
knowledge to proceed without it. As Bob said, if you are trying to do
something other than what the panel was designed to do, you would be better
off gaining the understanding necessary to do it yourself. The bonus later
on is the ability to trouble shoot and make changes if you decide to modify
your panel in some way.
Vaughn Teegarden
my 2 cents worth
----- Original Message -----
From: Les Goldner <mailto:lgold@quantum-associates.com>
Sent: Thursday, April 12, 2007 2:27 AM
Subject: AeroElectric-List: What about an electronic distribution panel?
I am building a Zenith 701 with a Rotax 912ULS engine and would like to have
opinions about using a commercial panel power distribution system like EXP
Bus Products' EXP2V (see
<http://www.aircraftspruce.com/catalog/elpages/expbus.php>
http://www.aircraftspruce.com/catalog/elpages/expbus.php) . My plane will
have the normal electrical stuff: landing lights, radios, intercom, Dynon
glass cockpit instruments, nav and strobe lights, VHF and Mode C radios, an
EZ single axis autopilot, and a few lighted steam gauges.
I know aeroelectric says keep it simple and use switches rather than
breakers, but I don't have a lot of room left on my panel and this "box"
looks easy to install and flashes indication that a breaker has been tripped
(with an indicator module option).
Do you know if this device provides for an essential buss or will isolates a
bad generator? Is this overkill? Are there specific up or downsides I need
to know about? Is it a good way to go?
Thanks for the advice,
Les
href="http://www.matronics.com/Navigator?AeroElectric-List">http://www.matro
nics.com/Navigator?AeroElectric-List
href="http://forums.matronics.com">http://forums.matronics.com
Message 5
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Hello Listmembers,
I would like to introduce myself. I'm a brand new builder of a Zenith Zodiac XL
kit. I plan to do a lot of electronics mods myself (flunked polytechnic college
in a previous life many moons ago).
I have Bob's book and I think it's great. has anybody on the list ever attempted
to build a two place intercom? I think the intercoms on the market are way overpriced.
I found schematics for a David Clark intercom on their website and
think about using that for inspiration.
Regards,
Hans van Riet
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=106529#106529
Message 6
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Subject: | Re: AeroElectric.com is in new digs . . . |
Bob,
I attempted to order a PCB for the audio isolation amp, but haven't heard anything.
Maybe it got lost in the move?
Hans van Riet
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=106530#106530
Message 7
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Cool,
I sold a 601 HDS with a subaru conversion last year That I had built and
flown for 7 years.
I think you can build a lot of your own electronics, its just a case of
do you want to with all the other work you will be doing? Certainly
building my IFR Rv7 there was no way I would bother investing that kind
of time.
But I have seen a lot of designs for home made circuitry.
Have fun
Frank
-----Original Message-----
From: owner-aeroelectric-list-server@matronics.com
[mailto:owner-aeroelectric-list-server@matronics.com] On Behalf Of
hansriet
Sent: Thursday, April 12, 2007 10:31 AM
Subject: AeroElectric-List: Introduction
Hello Listmembers,
I would like to introduce myself. I'm a brand new builder of a Zenith
Zodiac XL kit. I plan to do a lot of electronics mods myself (flunked
polytechnic college in a previous life many moons ago).
I have Bob's book and I think it's great. has anybody on the list ever
attempted to build a two place intercom? I think the intercoms on the
market are way overpriced. I found schematics for a David Clark intercom
on their website and think about using that for inspiration.
Regards,
Hans van Riet
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=106529#106529
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