Today's Message Index:
----------------------
1. 03:17 AM - aircraft wiring course slides (Jay Brinkmeyer)
2. 03:20 AM - wire labeling practices (Jay Brinkmeyer)
3. 04:56 AM - Re: SD-8 on a Rotax 914 (Jim Butcher)
4. 06:47 AM - Re: wire labeling practices (Richard Dudley)
5. 07:55 AM - Re: SD-8 on a Rotax 914 (Robert L. Nuckolls, III)
6. 07:56 AM - Re: aircraft wiring course slides (Robert L. Nuckolls, III)
7. 07:59 AM - Re: Re: Battery cables (Robert L. Nuckolls, III)
8. 08:00 AM - Re: transponder antenna cable near other (Robert L. Nuckolls, III)
9. 08:07 AM - Re: crossfeed contactor (Robert L. Nuckolls, III)
10. 08:10 AM - Re: Re: Mixing Z13 and Z14 (Robert L. Nuckolls, III)
11. 08:20 AM - Re: What is this device? (Robert L. Nuckolls, III)
12. 08:27 AM - Re: Antenna / aerial questions (Robert L. Nuckolls, III)
13. 08:34 AM - Re: transponder antenna cable near other cables? (Mickey Coggins)
14. 08:40 AM - Avionics wiring redo (Ken Simmons)
15. 09:15 AM - Re: Switch type (Robert McCallum)
16. 09:26 AM - Re: Switch type (Robert McCallum)
17. 09:46 AM - Re: Avionics wiring redo (rv-9a-online)
18. 09:58 AM - Re: wire labeling practices (rv-9a-online)
19. 11:23 AM - Re: Switch type (Scott Winn (Matronics List))
20. 01:37 PM - JPI EDM-930 information (Jeff Hildebrand)
21. 04:34 PM - Air Pressure "Squat" Switch (Dennis Johnson)
22. 05:13 PM - Re: Re: Mixing Z13 and Z14 (James E. Clark)
23. 06:28 PM - Re: Hi Bob, My alternator controller. (Robert L. Nuckolls, III)
24. 09:09 PM - Re: Ex Pilot Question (Robert L. Nuckolls, III)
25. 09:11 PM - Re: Switch type (Robert L. Nuckolls, III)
26. 09:13 PM - Re: Re: [Stinson] Genave marker receiver (Robert L. Nuckolls, III)
27. 09:33 PM - EFIS Backup Battery (Scott Winn (Matronics List))
28. 09:49 PM - Master Alarm (Scott Winn (Matronics List))
29. 11:01 PM - Re: EFIS Backup Battery (AI Nut)
Message 1
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| Subject: | aircraft wiring course slides |
--> AeroElectric-List message posted by: Jay Brinkmeyer <jaybrinkmeyer@yahoo.com>
My apologies if this is information is already widely distributed:
I ran across this PowerPoint wiring course while surfing the net. While I
haven't read everything, the topic appears to be relevant to wiring best
practices... Some information appears to be restatement of information already
contained AC43-13.
http://www.academy.jccbi.gov/airdl/wiringcourse/
=====
__________________________________
Message 2
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| Subject: | wire labeling practices |
--> AeroElectric-List message posted by: Jay Brinkmeyer <jaybrinkmeyer@yahoo.com>
Can someone point me to a good source/example of wire labeling and
identification best practices? Are folks using fancy mil-spec labels, just
printing & heat shrinking them on, or something else???
Thanks in advance,
Jay
P.S. This group is a much appreciated resource!
=====
__________________________________
Message 3
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| Subject: | Re: SD-8 on a Rotax 914 |
--> AeroElectric-List message posted by: "Jim Butcher" <europa@triton.net>
Kevin,
You won't get much because the vacuum drive runs at 54% of engine rpm. Even
the SD 20 only gives about 10A at 5000 rpm on the Rotax.
On my Europa with 914 I copied Jim Nelson's install of the alternator driven
off the rear of the crankshaft. It fits nicely inside the engine frame and
produces over 40A. I can supply more details, photos and even parts if you
wish. I understand that B&C is developing a similar setup.
Another solution is the belt driven Rotax alternator. Flightcrafters did
this on the Yellow Bird Europa. It involved a lot of rework of the cowl.
Lastly, Flightcrafters has an alternator that mounts to the vacuum pad that
puts out more than the SD8 or SD20. Check with Bob Berube for details.
Jim Butcher Europa N241BW A185
Paint done, doing final engine install
Message 4
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| Subject: | Re: wire labeling practices |
--> AeroElectric-List message posted by: Richard Dudley <rhdudley@att.net>
Hi Jay,
I have followed the procedure that Bob Nuccolls wrote about. That is
printing labels and covering them with clear shrink tubing. I used a
couple of wrinkles that might be a slightly different. Since I use an
ink jet printer, and knowing that the ink is water affected, I printed
them on plain paper using the label program for a specific Avery label.
Then took the paper to Kinko's and had them copy them onto Avery labels
that I supplied. Their charge was the regular copying per page charge. I
then peeled off the labels, cut out the pieces that I wanted to use,
wrapped the label around the wire and shrunk clear shrink tubing that I
bought from Aeroelectric (now, probably from B&S). By using a small
point size font and repeating the text vertically, some text will show
without having to specially orient the label.
This worked well for me and was very easy to do.
If some of this is a bit unclear, I' d be glad to try to re-explain any
part.
Regards and good luck,
Richard Dudley
-6A flying
Jay Brinkmeyer wrote:
>--> AeroElectric-List message posted by: Jay Brinkmeyer <jaybrinkmeyer@yahoo.com>
>
>Can someone point me to a good source/example of wire labeling and
>identification best practices? Are folks using fancy mil-spec labels, just
>printing & heat shrinking them on, or something else???
>
>Thanks in advance,
>Jay
>
>P.S. This group is a much appreciated resource!
>
>=====
>
>
>
>__________________________________
>
>
>
>
Message 5
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| Subject: | Re: SD-8 on a Rotax 914 |
--> AeroElectric-List message posted by: "Robert L. Nuckolls, III" <b.nuckolls@cox.net>
At 06:40 AM 2/26/2005 -0800, you wrote:
>--> AeroElectric-List message posted by: Kevin And Ann Klinefelter
><kevann@verizon.net>
>
>Hi All
>
>I have a 914 which is dependent on electric fuel pumps. I am thinking of
>putting an SD-8 on the empty vacume pump pad. Does anyone know what
>output I might expect from the SD-8 in cruise, say 5200 rpm?
Call B&C and find out. I think you're going to hear
that the vacuum pump pad on the Rotax engines turns
too slow for any practical output from B&C's pad
mounted products.
Their number is 316.283.8000
>Kevin
>Europa nearing completion, no electrical plan started yet.
Now is a VERY good time to get started!
Bob . . .
Message 6
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| Subject: | Re: aircraft wiring course slides |
--> AeroElectric-List message posted by: "Robert L. Nuckolls, III" <b.nuckolls@cox.net>
At 03:15 AM 2/26/2005 -0800, you wrote:
>--> AeroElectric-List message posted by: Jay Brinkmeyer
><jaybrinkmeyer@yahoo.com>
>
>My apologies if this is information is already widely distributed:
>
>I ran across this PowerPoint wiring course while surfing the net. While I
>haven't read everything, the topic appears to be relevant to wiring best
>practices... Some information appears to be restatement of information already
>contained AC43-13.
>
>http://www.academy.jccbi.gov/airdl/wiringcourse/
This is the first I've heard of them. Thank you for the
heads up. I've downloaded them and may add them to the
CD rom of data we offer after I review them.
Bob . . .
Message 7
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| Subject: | Re: Battery cables |
--> AeroElectric-List message posted by: "Robert L. Nuckolls, III" <b.nuckolls@cox.net>
At 06:07 PM 2/25/2005 -0500, you wrote:
>--> AeroElectric-List message posted by: Ken <klehman@albedo.net>
>
>Mine are all parallel. It's neater and just as effective as twisting
>AFAIK. Either way should cancel the magnetic effects.
>The only ones I twisted were the AC feed from the PM alternator to make
>sure they stayed close together when bundled.
>Ken
>
>Angier & Gynna wrote:
>
> >--> AeroElectric-List message posted by: Angier & Gynna <N2811A@comcast.net>
> >
> >The battery is behind the co-pilot seat in my Lancair. When installing
> the +/- cables going forward through the firewall, should these cables
> have several twists or is it ok to simply run then parallel to eachother?
Run them parallel for as far as practical . . . twisting is
difficult, makes them look messy and has minimal benefits.
Bob . . .
Message 8
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| Subject: | Re: transponder antenna cable near other |
cables?
--> AeroElectric-List message posted by: "Robert L. Nuckolls, III" <b.nuckolls@cox.net>
cables?
At 08:35 PM 2/25/2005 +0100, you wrote:
>--> AeroElectric-List message posted by: Mickey Coggins
><mick-matronics@rv8.ch>
>
>Hi,
>
>The most convenient routing for my transponder antenna cable is
>along with cables for my flap motor cables, autopilot servo
>cables, and aileron trim cables. Does anyone know if this
>might cause any problems with electrical interference?
>
>Thanks,
>Mickey
Very unlikely
Bob . . .
Message 9
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| Subject: | Re: crossfeed contactor |
--> AeroElectric-List message posted by: "Robert L. Nuckolls, III" <b.nuckolls@cox.net>
At 08:27 PM 2/24/2005 -0500, you wrote:
>--> AeroElectric-List message posted by: "John Schroeder"
><jschroeder@perigee.net>
>
>Ron -
>
>If I read the Z-14 diagram correctly, the crossfeed coil is fed from both
>sides thru the two diodes. Let me know if this is true.
>
>Thanks,
>
>John
>
> > If the crossfeed contactors coil is being powered from the side that is
> > dead, it will not work. Does it make sense to power the coil to this
> > contactor from both battery busses?
> >
John is correct. There are 3 diodes on a crosfeed contactor
such that it can power from either bus and enjoy the benefits
of spike suppression.
See:
http://www.aeroelectric.com/Pictures/S701-2.jpg
Bob . . .
Message 10
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| Subject: | Re: Mixing Z13 and Z14 |
--> AeroElectric-List message posted by: "Robert L. Nuckolls, III" <b.nuckolls@cox.net>
At 04:44 PM 2/24/2005 -0500, you wrote:
>--> AeroElectric-List message posted by: "James E. Clark"
><james@nextupventures.com>
>
>Ooopps. Didn't mean to imply anything about anyone but me. I was calling
>**ME** overweight. :-)
>
>Second, I am NOT flying yet.
>
>I would *probably* fly with the cross-feed closed **IF** I confirm that this
>does not cause a problem. The way I see it, my larger (B&C) alternator would
>have a bit more load and its regulator would cause it to come online. It
>would do the charging of both batteries.
>
>This will mean that all things will be able to get juice from all sources so
>to speak.
>
>Otherwise, I will fly with it open and if "stuff goes dark", I throw the
>cross-feed switch.
>
>It just seems so much cleaner from an operational standpoint. Maybe I am
>kidding myself but I feel I then have twice the reliability (two potentially
>independent systems) for keeping the lights on. Belt and suspenders so I
>sweat less if I am ever IFR, at night, over the mountains, blah, blah :-)
The idea for Z-14 is that one system can go completely dark
and not affect the other system. If you're going to fly with
the crossfeed closed, you might as well do something simpler
like Z-12 where two alternators feed a common bus. This is
the "upgrade" architecture for spam cans getting an SD-20
installation.
Bob . . .
Message 11
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| Subject: | What is this device? |
--> AeroElectric-List message posted by: "Robert L. Nuckolls, III" <b.nuckolls@cox.net>
At 02:35 PM 2/23/2005 -0500, you wrote:
>--> AeroElectric-List message posted by: "Michael D Crowe"
><rv8a@bellsouth.net>
>
>Hal,
>
>It is a capacitor. Used for noise filtering.
>
>Mike Crowe
>
>Subject: AeroElectric-List: What is this device?
>
>--> AeroElectric-List message posted by: Hal Kempthorne
><hal_kempthorne@sbcglobal.net>
>
>
>What the heck is this part? It is red, about half an inch square and about
>1/16th thick plastic with two leads .
>
>Marked
>
>ERIE
>
>3.3 M
>
>100V
>
>
>Found connect from power bus to ground.
Most folks have correctly opined that it is a capacitor. Does
disconnection of this device have any observable effects on system
operation? I am skeptical of the intent for installing this
kind of device right on the bus. I suspect that it's
insurance against stampeding pink elephants.
The only time I've found devices in this range useful is
for reduction of noises detected by ADF and the occasional
LORAN installations. Even then, the capacitor goes right on the
offending device, not on the bus. If leaving it out produces
no observable effects then I wouldn't bother to replace it.
Bob . . .
Message 12
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| Subject: | Antenna / aerial questions |
--> AeroElectric-List message posted by: "Robert L. Nuckolls, III" <b.nuckolls@cox.net>
At 04:50 PM 2/22/2005 +1000, you wrote:
>--> AeroElectric-List message posted by: "Kingsley Hurst"
><khurst@taroom.qld.gov.au>
>
>Bob K wrote
>
> Check out the files you'll find at:
>
>http://www.aeroelectric.com/articles/Antennas
>
>Excellent help thank you Bob.
>Will have to see if I can find Shoe Goo or equivalent over here.
It's identical to a hobby adhesive sold as E6000 and dozens
of other part numbers and brands. E6000 is handled by many
hardware stores and at Hobby Lobby.
Bob . . .
Message 13
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| Subject: | Re: transponder antenna cable near other cables? |
--> AeroElectric-List message posted by: Mickey Coggins <mick-matronics@rv8.ch>
>>The most convenient routing for my transponder antenna cable is
>>along with cables for my flap motor cables, autopilot servo
>>cables, and aileron trim cables. Does anyone know if this
>>might cause any problems with electrical interference?
>
>
> Very unlikely
>
> Bob . . .
Cool - Bob's back! Thanks for the info, Bob.
--
Mickey Coggins
http://www.rv8.ch/
#82007 Wiring
Message 14
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| Subject: | Avionics wiring redo |
--> AeroElectric-List message posted by: "Ken Simmons" <ken@truckstop.com>
I'm trying to troubleshoot a whine in the headset audio. I bought the plane finished
and it wasn't an issue until I started using a high quality stereo headset.
I had already planned to replace the existing PM501 with a stereo intercom,
possibly a Flightcom 403.
The noise is present with everything off but the engine and intercom and changes
with engine RPM. The plane does have electronic ignition on one side. I believe
the problem is in how the avionics were wired. For some reason the builder
passed power and audio signals through a terminal strip. I haven't completely
traced it, but it looks like the grounds to the headset jacks originate from
a common ground on the terminal strip, which all go back to a ground bus.
I'm also going to install an auto pilot when I upgrade the intercom. Since I'll
have to tap into the only comm/gps radio and replace the intercom it seems sensible
to just redo the entire avionics wiring. Am I creating to much work for
myself or does this seem a reasonable approach?
Thanks.
Ken
Message 15
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--> AeroElectric-List message posted by: Robert McCallum <robert.mccallum2@sympatico.ca>
Scott;
One way to achieve what you want is to use a commonly available 2 pole
on-on-on progressive transfer switch. You jumper terminal 1 to 5,
connect your load to terminal 2, connect your primary supply to terminal
6, and your auxiliary supply to terminal 4. This, when installed key way
up, gives you down = off, mid = primary, and up = aux.
See
http://www.aeroelectric.com/articles/Carling_Micro/Carling_Micro.pdf
for how this switch works.
Bob McC
Scott Winn (Matronics List) wrote:
>--> AeroElectric-List message posted by: "Scott Winn (Matronics List)" <swmat@cox.net>
>
>I have a switching application on my panel that selects between Off,
>Primary and Aux. The switch I selected to perform the switching is a
>2-1 type switch. The problem I am having is that everything else on my
>panel is pointed down for the off positsion. The 2-1 switch has it's
>off position in the middle which isn't what I want. I would really like
>to be consistent with the operation of the switches on my panel so that
>when something is turned Off, it is pointed down. I need a DP3T switch
>to perform this task, but B & C doesn't carry one. It is also very
>important to me to have identical size and feel of switches on the
>panel, so I'd prefer to get a switch that exactly matches the size,
>shape and operation of the B & C switches. Since I ordered a bunch of
>switches from them, I Iooked up the manufacturer and it appears that
>they do not manufacture a DP3T switch. Does anyone know of a DP3T
>switch that has the same size bat toggle as the B&C switches?
>
>--Scott
>
>
Message 16
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--> AeroElectric-List message posted by: Robert McCallum <robert.mccallum2@sympatico.ca>
Scott;
Sorry, I clicked sent a little too quickly. B&C does carry this switch.
It is a 700-2-10 and is shown at $19.50 on their web site under switches
here.
http://www.bandc.biz/cgi-bin/ez-catalog/cat_display.cgi?11X358218#s700-2-10
Bob McC
Robert McCallum wrote:
>--> AeroElectric-List message posted by: Robert McCallum <robert.mccallum2@sympatico.ca>
>
>Scott;
>
>One way to achieve what you want is to use a commonly available 2 pole
>on-on-on progressive transfer switch. You jumper terminal 1 to 5,
>connect your load to terminal 2, connect your primary supply to terminal
>6, and your auxiliary supply to terminal 4. This, when installed key way
>up, gives you down = off, mid = primary, and up = aux.
>See
>http://www.aeroelectric.com/articles/Carling_Micro/Carling_Micro.pdf
>for how this switch works.
>
>Bob McC
>
>
Message 17
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| Subject: | Re: Avionics wiring redo |
--> AeroElectric-List message posted by: rv-9a-online <rv-9a-online@telus.net>
Sounds like you are on the right track.
As for re-doing the avionics wiring, if I was a betting man, I'd gamble
that you will. Once you start digging and deciphering some one else's
wiring, you probably find it faster and more enjoyable to just start again.
And I bet you'll add a few things to the panel as well. You know, once
it's out... how about a moving map, satellite radio, microwave oven...
Good luck. Anyone can pound rivets. Real men wire their own panels. :-).
Vern Little
Ken Simmons wrote:
>--> AeroElectric-List message posted by: "Ken Simmons" <ken@truckstop.com>
>
>I'm trying to troubleshoot a whine in the headset audio. I bought the plane finished
and it wasn't an issue until I started using a high quality stereo headset.
I had already planned to replace the existing PM501 with a stereo intercom,
possibly a Flightcom 403.
>
>The noise is present with everything off but the engine and intercom and changes
with engine RPM. The plane does have electronic ignition on one side. I believe
the problem is in how the avionics were wired. For some reason the builder
passed power and audio signals through a terminal strip. I haven't completely
traced it, but it looks like the grounds to the headset jacks originate from
a common ground on the terminal strip, which all go back to a ground bus.
>
>I'm also going to install an auto pilot when I upgrade the intercom. Since I'll
have to tap into the only comm/gps radio and replace the intercom it seems sensible
to just redo the entire avionics wiring. Am I creating to much work for
myself or does this seem a reasonable approach?
>
>Thanks.
>Ken
>
>
>
>
>
>
>
>
>
Message 18
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| Subject: | Re: wire labeling practices |
--> AeroElectric-List message posted by: rv-9a-online <rv-9a-online@telus.net>
Has anyone had experience with the Rite-Zit labeller? Google Rite-Zit
(unfortunate name) to see it. Apparently it wraps an adhesive label
around the wire with a special tool. This allows labelling a wire after
installation, and does not require heatshrink which can stiffen a wire
or bind up when pulling.
It's pretty cheap, too. If I hadn't finished my wiring already, I'd try
one.
Vern Little
Richard Dudley wrote:
>--> AeroElectric-List message posted by: Richard Dudley <rhdudley@att.net>
>
>Hi Jay,
>I have followed the procedure that Bob Nuccolls wrote about. That is
>printing labels and covering them with clear shrink tubing. I used a
>couple of wrinkles that might be a slightly different. Since I use an
>ink jet printer, and knowing that the ink is water affected, I printed
>them on plain paper using the label program for a specific Avery label.
>Then took the paper to Kinko's and had them copy them onto Avery labels
>that I supplied. Their charge was the regular copying per page charge. I
>then peeled off the labels, cut out the pieces that I wanted to use,
>wrapped the label around the wire and shrunk clear shrink tubing that I
>bought from Aeroelectric (now, probably from B&S). By using a small
>point size font and repeating the text vertically, some text will show
>without having to specially orient the label.
>
>This worked well for me and was very easy to do.
>
>If some of this is a bit unclear, I' d be glad to try to re-explain any
>part.
>
>Regards and good luck,
>
>Richard Dudley
>-6A flying
>
>Jay Brinkmeyer wrote:
>
>
>
>>--> AeroElectric-List message posted by: Jay Brinkmeyer <jaybrinkmeyer@yahoo.com>
>>
>>Can someone point me to a good source/example of wire labeling and
>>identification best practices? Are folks using fancy mil-spec labels, just
>>printing & heat shrinking them on, or something else???
>>
>>Thanks in advance,
>>Jay
>>
>>P.S. This group is a much appreciated resource!
>>
>>=====
>>
>>
>>
>>__________________________________
>>
>>
>>
>>
>>
>>
>
>
>
>
Message 19
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--> AeroElectric-List message posted by: "Scott Winn (Matronics List)" <swmat@cox.net>
Robert,
I saw that configuration in the AeroElectric connection. However, I
need this functionality on a dual pole device. A 2-10 switch wired in
this way functions as a one pole device. I just noticed that Bob
mentions a 4 pole ON-ON-ON device, and it can be used as I described.
I'm pretty sure B&C doesn't stock the four pole switch, but maybe they
can order it for me.
--Scott
--> AeroElectric-List message posted by: Robert McCallum
--> <robert.mccallum2@sympatico.ca>
Scott;
Sorry, I clicked sent a little too quickly. B&C does carry this switch.
It is a 700-2-10 and is shown at $19.50 on their web site under switches
here.
http://www.bandc.biz/cgi-bin/ez-catalog/cat_display.cgi?11X358218#s700-2
-10
Bob McC
Robert McCallum wrote:
>--> AeroElectric-List message posted by: Robert McCallum
>--> <robert.mccallum2@sympatico.ca>
>
>Scott;
>
>One way to achieve what you want is to use a commonly available 2 pole
>on-on-on progressive transfer switch. You jumper terminal 1 to 5,
>connect your load to terminal 2, connect your primary supply to
terminal
>6, and your auxiliary supply to terminal 4. This, when installed key
way
>up, gives you down = off, mid = primary, and up = aux.
>See
>http://www.aeroelectric.com/articles/Carling_Micro/Carling_Micro.pdf
>for how this switch works.
>
>Bob McC
>
>
Message 20
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| Subject: | JPI EDM-930 information |
--> AeroElectric-List message posted by: "Jeff Hildebrand" <jhildebrand@crownequip.com>
I would like to put a JPI EDM-930 engine monitor in our Lancair ES. I want
to get the panel laser cut before we get the instrument, but I am having a
lot of trouble with JPI getting the correct cutout information. They gave
me a cutout drawing, but it is missing information on the button cutouts.
Does anyone have an EDM-930 that they could get me some information on? I
would appreciate and photo of the unit.
Thanks,
Jeff Hildebrand
Lancair ES C-GSPH
HYPERLINK "http://www.lancaires.com/"www.lancaires.com
--
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Message 21
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| Subject: | Air Pressure "Squat" Switch |
--> AeroElectric-List message posted by: "Dennis Johnson" <pinetownd@volcano.net>
Lancair Kit Components sells an air pressure activated "squat" switch, although
it's pretty pricey at $250. On the other hand, you can be relatively confident
that it will be suited to your application. Here's the link:
http://www.aerocraftparts.com/ItemForm.aspx?item710
Good luck,
Dennis Johnson
Lancair Legacy #257
Message 22
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| Subject: | Re: Mixing Z13 and Z14 |
--> AeroElectric-List message posted by: "James E. Clark" <james@nextupventures.com>
Thanks for the comment below Bob.
Which means that I will NOW *probably* fly with the cross-feed "open". :-)
James
Seriously, I plan to assign things to the two independent systems in a
manner such that if one dies totally, it is a non-event. That's what I like
about it.
{SNIP}
| >
| >I would *probably* fly with the cross-feed closed **IF** I confirm that
| this
| >does not cause a problem. The way I see it, my larger (B&C) alternator
{SNIP}
| >
| >Otherwise, I will fly with it open and if "stuff goes dark", I throw the
| >cross-feed switch.
| >
| >It just seems so much cleaner from an operational standpoint. Maybe I am
| >kidding myself but I feel I then have twice the reliability (two
| potentially
| >independent systems) for keeping the lights on. Belt and suspenders so I
| >sweat less if I am ever IFR, at night, over the mountains, blah, blah :-
| )
|
|
| The idea for Z-14 is that one system can go completely dark
| and not affect the other system. If you're going to fly with
| the crossfeed closed, you might as well do something simpler
| like Z-12 where two alternators feed a common bus. This is
| the "upgrade" architecture for spam cans getting an SD-20
| installation.
|
| Bob . . .
|
Message 23
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| Subject: | Re: Hi Bob, My alternator controller. |
--> AeroElectric-List message posted by: "Robert L. Nuckolls, III" <b.nuckolls@cox.net>
What kind of meter and what scale? There's no way that any
failure other than something like lightning strike could
"ground" all terminals . . . and even then, the values
read at each toasted terminal would show some variability.
I suspect your controller is fine and the instrument you're
using is incapable of resolving the resistance characteristics
of the individual pins.
Bob . . .
At 05:35 PM 2/21/2005 -0800, you wrote:
>--> AeroElectric-List message posted by: cecilth@juno.com
>
>
>I do the checking with a meter.
>I touch the case and all 7 terminals and get a full needle deflection
>at each terminal. The other probe is grounded to the airframe.
>Cecil
>
>
>On Mon, 21 Feb 2005 17:27:02 -0700 (MST) "Matt Prather"
><mprather@spro.net> writes:
> > --> AeroElectric-List message posted by: "Matt Prather"
> > <mprather@spro.net>
> >
> > Since Bob is out of town for a few days...
> >
> > I assume you are using a meter of some sort to determine that
> > they are 'grounded.'
> >
> > I wouldn't be surprised if each of the inputs have a diode stack or
> > similar structure connected as input polarity protection. Some
> > terminals may have fairly large capacitors on them. Depending on
> > what kind of meter you have and how you hook it up to each terminal,
> > they may look nearly like they are shorted to ground.
> >
> > If you need an answer right away, you could probably contact one
> > of the techies at B and C. They have been very responsive to my
> > questions and requests in the past.
> >
> > Regards,
> >
> > Matt-
> >
> > > --> AeroElectric-List message posted by: cecilth@juno.com
> > >
> > >
> > > Hi Bob,
> > > My Alternator Controller ( from BNC) has never had volts hooked up
> > to it
> > > yet.
> > > Its bolted to a grounded surface. I find all seven stations are
> > then
> > > grounded
> > > with no wires hooked to it at all. Something smells in denmark.
> > Whats
> > > going on?
> > > Bad Controller??
> > > Cecil Hatfield
> > >
> > >
> >
> >
> > http://www.matronics.com/FAQ/AeroElectric-List.htm
> >
> >
> >
> >
> >
>
>
>--
>No virus found in this incoming message.
>Checked by AVG Anti-Virus.
>Version: 7.0.300 / Virus Database: 266.5.0 - Release Date: 2/25/2005
>
>
>-- incoming mail is certified Virus Free.
>Checked by AVG Anti-Virus.
>Version: 7.0.300 / Virus Database: 266 - Release Date: 2/25/2005
Bob . . .
--------------------------------------------------------
< Throughout history, poverty is the normal condition >
< of man. Advances which permit this norm to be >
< exceeded -- here and there, now and then -- are the >
< work of an extremely small minority, frequently >
< despised, often condemned, and almost always opposed >
< by all right-thinking people. Whenever this tiny >
< minority is kept from creating, or (as sometimes >
< happens) is driven out of a society, the people >
< then slip back into abject poverty. >
< >
< This is known as "bad luck". >
< -Lazarus Long- >
<------------------------------------------------------>
http://www.aeroelectric.com
Message 24
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|
| Subject: | Re: Ex Pilot Question |
--> AeroElectric-List message posted by: "Robert L. Nuckolls, III" <b.nuckolls@cox.net>
At 02:38 PM 2/22/2005 +0100, you wrote:
>--> AeroElectric-List message posted by: Mickey Coggins
><mick-matronics@rv8.ch>
>
>Hi Dean,
>
>Thanks for pointing this out. I've already wired my Trio Avionics
>EZ Pilot servo, but didn't notice the recommendation to use shielded
>wire on the PWM line. How the heck did I miss this? Anyway...
>
>One question for the experts - would it hurt to have all three
>lines - ground, +14v, and the PWM be in the same shielded bundle?
>
>One concern I have is that the documentation says to ground both
>ends of the shield. This seems to be in conflict with Bob's
>teachings. Are autopilot servos different from strobes in this
>regard?
Conflicting in what way? I think I've always suggested that
manufacturer's instructions should be followed to the letter
first.
Do the instructions say to separate the leadwires? If not
then I would presume that it's okay to bundle them together
like most system installations. I don't ever recall installation
instructions for an appliance that recommended separation
of certain kinds of wires for the purpose of reducing noise.
Bob . . .
Message 25
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|
--> AeroElectric-List message posted by: "Robert L. Nuckolls, III" <b.nuckolls@cox.net>
At 09:36 PM 2/25/2005 -0800, you wrote:
>--> AeroElectric-List message posted by: "Scott Winn (Matronics List)"
><swmat@cox.net>
>
>I have a switching application on my panel that selects between Off,
>Primary and Aux.
Primary and Aux what?
> The switch I selected to perform the switching is a
>2-1 type switch. The problem I am having is that everything else on my
>panel is pointed down for the off positsion. The 2-1 switch has it's
>off position in the middle which isn't what I want. I would really like
>to be consistent with the operation of the switches on my panel so that
>when something is turned Off, it is pointed down. I need a DP3T switch
>to perform this task, but B & C doesn't carry one.
I'm not sure what you need is made.
> It is also very
>important to me to have identical size and feel of switches on the
>panel, so I'd prefer to get a switch that exactly matches the size,
>shape and operation of the B & C switches. Since I ordered a bunch of
>switches from them, I Iooked up the manufacturer and it appears that
>they do not manufacture a DP3T switch. Does anyone know of a DP3T
>switch that has the same size bat toggle as the B&C switches?
Need more input on your application.
Bob . . .
Message 26
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|
| Subject: | Re: [Stinson] Genave marker receiver |
pinout?
--> AeroElectric-List message posted by: "Robert L. Nuckolls, III" <b.nuckolls@cox.net>
pinout?
Sorry, my data base doesn't cover this radio.
Bob . . .
At 09:01 PM 2/25/2005 -0600, you wrote:
>--> AeroElectric-List message posted by: "cgalley" <cgalley@qcbc.org>
>
>http://www.aeroelectric.com/Installation_Data Bob Nuckolls has a data base
>of radio pin-outs/ But it doesn't seem to be on the site.
>
>I am forwarding your request to the aeroelectric-list@matronics list
>
>Cy Galley
>EAA Safety Programs Editor
>Always looking for ideas and articles for EAA Sport Pilot
>
>
> ----- Original Message -----
> From: fixbritishcars
> To: Stinson@yahoogroups.com
> Sent: Friday, February 25, 2005 9:27 AM
> Subject: [Stinson] Genave marker receiver pinout?
>
>
> I an have a Genave Delta 300 marker beacon receiver that I want to
> install in my Stinson. I have no diagram for it. Does anyone have the
> pin out for this? If so please e-mail me, phone me 314-808-0281 or
> fax inro to 573-237-3605. MANY THANKS
> Andy
> 8968K
>
>
> ADVERTISEMENT
>
>
> a.. To visit your group on the web, go to:
> http://groups.yahoo.com/group/Stinson/
>
> b.. To unsubscribe from this group, send an email to:
> Stinson-unsubscribe@yahoogroups.com
>
>
>--
>No virus found in this incoming message.
>Checked by AVG Anti-Virus.
>Version: 7.0.300 / Virus Database: 266.5.0 - Release Date: 2/25/2005
>
>
>-- incoming mail is certified Virus Free.
>Checked by AVG Anti-Virus.
>Version: 7.0.300 / Virus Database: 266 - Release Date: 2/25/2005
Bob . . .
--------------------------------------------------------
< Throughout history, poverty is the normal condition >
< of man. Advances which permit this norm to be >
< exceeded -- here and there, now and then -- are the >
< work of an extremely small minority, frequently >
< despised, often condemned, and almost always opposed >
< by all right-thinking people. Whenever this tiny >
< minority is kept from creating, or (as sometimes >
< happens) is driven out of a society, the people >
< then slip back into abject poverty. >
< >
< This is known as "bad luck". >
< -Lazarus Long- >
<------------------------------------------------------>
http://www.aeroelectric.com
Message 27
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|
| Subject: | EFIS Backup Battery |
--> AeroElectric-List message posted by: "Scott Winn (Matronics List)" <swmat@cox.net>
The EFIS we are installing in our aircraft provides multiple power input
terminals, and automatically selects the terminal with the highest
voltage present to power the device. The primary power input is from
our endurance bus. I'd like to utilize a small, 1.2AH sealed lead acid
AGM battery to provide sufficient voltage to drive the EFIS during
engine start when the main bus voltage will fall and cause the EFIS to
reset.
I would like this battery to be charged by the ships main bus, but not
allow current to flow from this battery to the main bus. I can isolate
the battery from the main bus with a diode, but I'm concerned that it
won't get fully charged with the voltage drop across the diode.
My second idea is to use a comparator circuit that drives a relay to
connect the 1.2AH battery to the main bus when the bus voltage exceeds
13.0 volts, and disconnect it when it falls below this value. This
would allow the small battery to receive a full charge when the
alternator is charging, but disconnect it when the voltage falls below
the charge current.
Has anyone done something like this before? Is there a better/simpler
way to provide suffient voltage to the EFIS during tartup than what I
proposing? I thought about a capacitor, but I think it would have to be
pretty large. The total EFIS current draw will be about 4 amps and I
want the EFIS to continue to function even during extended cranking.
--Scott
Message 28
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|
--> AeroElectric-List message posted by: "Scott Winn (Matronics List)" <swmat@cox.net>
With all of the talk of Voice annunciation and forced landings, I'm
looking for a warning system to put in my panel. I've seen a few of the
high priced ones ($1500+) they cost too much. Before I go re-invent the
wheel, I wanted to check here and see if anyone is aware of any low cost
warning systems that provide functions such as:
- Aural annunciation, warning tone or voice.
- Flight mode aware (I.E. different warning configurations based on
airspeed or something similar)
- Configurable inputs (Not all inputs would produce audible warnings,
some could be caution, etc...)
- External outputs for visual annunciation to allow connection of my own
LEDs/Light as desired.
The ideal device would function in a manner similar to the transport
class devices some have mentioned with an 'acknowledge' button to shut
the warning up after it was noticed by the pilot. It would also cost
somewhere around $100-$300
--Scott
San Diego, CA
Message 29
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|
| Subject: | Re: EFIS Backup Battery |
--> AeroElectric-List message posted by: AI Nut <ainut@hiwaay.net>
I think something from the RV (as in motorhomes, not airplane) world
might be needed here. Look for a unit called 'battery isolator.'
HTH,
David
Scott Winn (Matronics List) wrote:
>--> AeroElectric-List message posted by: "Scott Winn (Matronics List)" <swmat@cox.net>
>
>The EFIS we are installing in our aircraft provides multiple power input
>terminals, and automatically selects the terminal with the highest
>voltage present to power the device. The primary power input is from
>our endurance bus. I'd like to utilize a small, 1.2AH sealed lead acid
>AGM battery to provide sufficient voltage to drive the EFIS during
>engine start when the main bus voltage will fall and cause the EFIS to
>reset.
>
>I would like this battery to be charged by the ships main bus, but not
>allow current to flow from this battery to the main bus. I can isolate
>the battery from the main bus with a diode, but I'm concerned that it
>won't get fully charged with the voltage drop across the diode.
>
>My second idea is to use a comparator circuit that drives a relay to
>connect the 1.2AH battery to the main bus when the bus voltage exceeds
>13.0 volts, and disconnect it when it falls below this value. This
>would allow the small battery to receive a full charge when the
>alternator is charging, but disconnect it when the voltage falls below
>the charge current.
>
>Has anyone done something like this before? Is there a better/simpler
>way to provide suffient voltage to the EFIS during tartup than what I
>proposing? I thought about a capacitor, but I think it would have to be
>pretty large. The total EFIS current draw will be about 4 amps and I
>want the EFIS to continue to function even during extended cranking.
>
>--Scott
>
>
>.
>
>
>
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