Today's Message Index:
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1. 01:30 AM - Re: Annunciator Panel - The Display (D Fritz)
2. 04:02 AM - Re: (Ralph Hoover)
3. 04:52 AM - Re: annunciator Autocad file (Peter Laurence)
4. 05:36 AM - ICS Plus Nav/com (glen matejcek)
5. 06:23 AM - wingtip VOR antenna (Jim Pleasants)
6. 09:23 AM - Re: wingtip VOR antenna (Robert L. Nuckolls, III)
7. 10:06 AM - wingtip VOR antenna (James H Nelson)
8. 05:43 PM - Re: Fuse Link At Battery (JOHNATHAN MACY)
9. 06:31 PM - Re: Annunciator Panel (Speedy11@aol.com)
10. 07:56 PM - trim servo wiring (bob noffs)
11. 09:04 PM - Re: trim servo wiring (Robert L. Nuckolls, III)
Message 1
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| Subject: | Re: Annunciator Panel - The Display |
Rather than using discrete LED's to annunciate what fault the system has sensed,
why not just put in a simple three line display and annunciate the fault in
words, after all the audio will direct you to look at the display, this might
make the packaging a little easier and avoid having to make a bunch of labels.
Dan
__________________________________________________
Message 2
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| Subject: | Re: ectric-List: |
26 ga wire in a common sheath, properly routed and supported is plenty
robust. The problems happen at the terminations. I recommend connectors
with properly designed stain relief. I have selected a Switchcraft EN3
series connectors (http://dkc3.digikey.com/PDF/T063/0289.pdf) This is a
small diameter circular connector that is weather tight and strain
relieved. It's more money than a cut-up D connector but it's a reliable
stable connector. I will add a length of plastic tubing where the wire
is routed through the elevator hinge area supported by clamps on both ends.
Ralph
Robert L. Nuckolls, III wrote:
> <nuckollsr@cox.net>
>
> At 04:45 PM 12/18/2006 -0600, you wrote:
>
>> hi all,
>> what are builders doing to connect a trim servo to the cockpit?
>> ''ray allen'' servo takes 5 wires . the company can supply a 5 wire
>> cable. wires are each 26 ga. is that the way to go or is there a
>> better way? 26 ga . seems pretty flimsy. Any input appreciated.
>
>
> 24AWG wire in the airframe is marginal for serviceability,
> 26AWG wire sucks. Recommend you transition as soon as practical
> to 22AWG by means of a connector . . . here's one way to do it.
>
> http://aeroelectric.com/articles/macservo/macservo.html
>
> Bob . . .
>
>
> ---------------------------------------------------------
> < What is so wonderful about scientific truth...is that >
> < the authority which determines whether there can be >
> < debate or not does not reside in some fraternity of >
> < scientists; nor is it divine. The authority rests >
> < with experiment. >
> < --Lawrence M. Krauss >
> ---------------------------------------------------------
>
>
Message 3
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| Subject: | Re: annunciator Autocad file |
Mark,
Any chance of getting the DWF file for your annunciator?
BTW, I just installed the static ports that I purchased from you. Nice
Design.
Email to
plaurence@the-beach.net
Thanks
----- Original Message -----
From: Fiveonepw@aol.com
To: aeroelectric-list@matronics.com
Sent: Monday, December 18, 2006 8:42 PM
Subject: Re: AeroElectric-List: Wire for trim servos
Hi Bob-
This stuff comes in pretty handy:
http://steinair.com/wire.htm
Scroll down to "Servo wire". Five 22ga for MAC trim and two 20ga for
tail light/whatever (and just whut the doktur ordered for TruTrak
servos). Take them wimpy wires from the MAC servo, strip back twice
what you need for a butt splice, double it over and crimp. I also add a
short skinny piece of heat shrink to the insulation to make sure the
PIDG butt splice grabs aholt of the insulation...
Here's a suggestion from Bob Nuckolls at aeroelectric.com:
http://www.aeroelectric.com/articles/macservo/macservo.html
and others have crimped d-sub pins with shrink tube over each
connection (female to harness, male to servo at staggered lengths to
avoid "snake swallowed a pig" syndrome) to the wires to make the
connection as well.
Mark
Message 4
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| Subject: | ICS Plus Nav/com |
Hi Bob et al-
I've a friend with a problem (no, really...). He has an ICS Plus nav/com
that had been marketed by Wag Aero at one time. It is now malfunctioning,
and he would like to try to get it serviced. So far he's had no luck,
either through Wag or the Internet. Although not exquisitely intuitive to
use, it does have a lot of pretty neat and useful features, and I don't
blame him for trying to get it fixed.
Does anyone on the list have any (constructive) suggestions?
glen matejcek
aerobubba@earthlink.net
Message 5
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| Subject: | wingtip VOR antenna |
As a part of the installation of the landing light package in the
wingtip, I put in a 6-inch strip of aluminum foil which came in the kit
as a heat shield.
I'm now contemplating (obsessing?) over the location for the VOR
antenna. Will the strip of aluminum foil make a substancial difference
in the reception capability of a wingtip antenna?
All comments will be appreciated -- and Merry Christmas to all!
Jim Pleasants
RV-7A finishing kit on order
Message 6
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| Subject: | Re: wingtip VOR antenna |
At 09:23 AM 12/19/2006 -0500, you wrote:
> As a part of the installation of the landing light package in the
> wingtip, I put in a 6-inch strip of aluminum foil which came in the kit
> as a heat shield.
>
> I'm now contemplating (obsessing?) over the location for the VOR
> antenna. Will the strip of aluminum foil make a substancial difference
> in the reception capability of a wingtip antenna?
>
> All comments will be appreciated -- and Merry Christmas to all!
EVERY conductor located within inches of ANY antenna will have
SOME effect. If we were blessed with access to some of the very
sophisticated antenna modeling and performance predicting software,
we could probably quantity the degree to which your contemplated
configuration is affected.
No antenna mounted on an airframe is "perfect" and many suffer
from deep performance nulls on some look-axis . . . yet most
antennas are deemed "satisfactory" by users who fly them.
Anyone's non-quantified predictions attempting to answer
your question might just as well be offered by throwing darts
at the whole range of possible answers.
Give it a try and if you perceive some degraded performance,
you're in a position to do the repeatable experiment where
the foil is removed and the antenna re-evaluated in the same
operating conditions.
Bob . . .
---------------------------------------------------------
< What is so wonderful about scientific truth...is that >
< the authority which determines whether there can be >
< debate or not does not reside in some fraternity of >
< scientists; nor is it divine. The authority rests >
< with experiment. >
< --Lawrence M. Krauss >
---------------------------------------------------------
Message 7
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| Subject: | wingtip VOR antenna |
Merry Christmas Bob, thanks for being there for us.
Jim Nelson
Message 8
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| Subject: | Re: Fuse Link At Battery |
Bob . . .
The authority rests with experiment.
--Lawrence M. Krauss
Thanks for the follow up and feedback. The need to experiment at the wrong time
has been averted.
I appreciate it. Happy holidays to you and yours.
Johnathan
Message 9
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| Subject: | Re: Annunciator Panel |
I'm very impressed with the activity on designing an annunciator panel.
Excellent ideas are forming. Nathan Ulrich's annunciator is very nice.
I'm getting anxious to get more info on the caution/annunciator panel. I'd
like to build one when the entire concept comes together. Or buy one if somone
decides to produce them.
Stan Sutterfield
Do Not Archive
Message 10
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| Subject: | trim servo wiring |
thanks to all who that replied to my wiring question. i got some good
ideas. gees bob n., you have pictures for everything!
bob noffs
Message 11
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| Subject: | Re: trim servo wiring |
At 09:54 PM 12/19/2006 -0600, you wrote:
>thanks to all who that replied to my wiring question. i got some good
>ideas. gees bob n., you have pictures for everything!
I had a picture for the individual d-sub pins under shrink
but I don't know where it got off to. I'm planning on adding
it to the options in the comic book.
Ain't electronics wunderful . . . 'specially those cameras!
Bob . . .
---------------------------------------------------------
< What is so wonderful about scientific truth...is that >
< the authority which determines whether there can be >
< debate or not does not reside in some fraternity of >
< scientists; nor is it divine. The authority rests >
< with experiment. >
< --Lawrence M. Krauss >
---------------------------------------------------------
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