Today's Message Index:
----------------------
1. 05:07 AM - [OT] IFR-certified GPS Suggestions (Art Zemon)
2. 08:34 AM - Re: Re: Alternator Dropping Off Line (Robert L. Nuckolls, III)
3. 08:59 AM - Re: Re: Alternator Dropping Off Line (Ken Ryan)
4. 09:16 AM - Re: Re: Alternator Dropping Off Line (Sebastien)
5. 09:16 AM - Re: Re: Alternator Dropping Off Line (Sebastien)
6. 10:18 AM - Re: Re: Alternator Dropping Off Line (Charlie England)
7. 12:17 PM - Re: Re: Alternator Dropping Off Line (Ken Ryan)
8. 12:57 PM - Re: Re: Alternator Dropping Off Line (Charlie England)
9. 04:23 PM - Re: Re: Alternator Dropping Off Line (Ken Ryan)
10. 04:23 PM - Re: [OT] IFR-certified GPS Suggestions (Alec Myers)
11. 04:23 PM - Updated Z-12 available yet (Michael Burbidge)
12. 04:37 PM - Re: Re: Alternator Dropping Off Line (r.r.hall@cox.net r.r.hall@cox.net)
13. 06:40 PM - Re: Re: Alternator Dropping Off Line (Sebastien)
Message 1
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| Subject: | [OT] IFR-certified GPS Suggestions |
This is somewhat off-topic but I figure y'all know a lot about airplanes so
you might have opinions about avionics, too.
I reserved space in my panel for a Garmin 430 WAAS or a Garmin 650. Now
that Oshkosh is upon us, perhaps I can save a few pennies on an
IFR-certified GPS that will fit in that hole. It doesn=99t have to be
a
Garmin; that is just the size hole that I cut when I did the rest of the
panel.
What suggestions do you have, both for equipment and vendor?
-- Art Z.
--
https://CheerfulCurmudgeon.com/
*Love the stranger for you yourselves were strangers in Egypt. *Deut. 10:19
Message 2
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| Subject: | Re: Alternator Dropping Off Line |
At 12:12 AM 7/13/2019, you wrote:
>That 13.8 is at the start of a failure cycle. Normal bus voltage has
>been 14.1 on the last several flights.
>
>The engine was recently overhauled, I'm trying to find out if the
>alternator was as well. It looks new.
Okay, it sounds like this alternator
has no known track record.
Emacs!
I put a 'ruler' on a piece of your
data plot and it appears that alternator
OPERATING is on the order of 13.7v, alternator
OFF is 12.4v or battery only. you've got a
LOT of on/off transients.
Does this alternator have a built in
regulator or external regulator?
If INTERNAL regulator, the alternator
is defective. If EXTERNAL reguator,
you need to put a voltmeter on the
Field terminal during a flight to
see if the transient is upstream
(in the regulator or associate
wiring) or downstream (in the
alternator).
Bob . . .
Message 3
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| Subject: | Re: Alternator Dropping Off Line |
Bob, what is a "transient" ?
On Sat, Jul 13, 2019 at 7:39 AM Robert L. Nuckolls, III <
nuckolls.bob@aeroelectric.com> wrote:
> At 12:12 AM 7/13/2019, you wrote:
>
> That 13.8 is at the start of a failure cycle. Normal bus voltage has been
> 14.1 on the last several flights.
>
> The engine was recently overhauled, I'm trying to find out if the
> alternator was as well. It *looks* new.
>
>
> Okay, it sounds like this alternator
> has no known track record.
>
> [image: Emacs!]
>
> I put a 'ruler' on a piece of your
> data plot and it appears that alternator
> OPERATING is on the order of 13.7v, alternator
> OFF is 12.4v or battery only. you've got a
> LOT of on/off transients.
>
> Does this alternator have a built in
> regulator or external regulator?
> If INTERNAL regulator, the alternator
> is defective. If EXTERNAL reguator,
> you need to put a voltmeter on the
> Field terminal during a flight to
> see if the transient is upstream
> (in the regulator or associate
> wiring) or downstream (in the
> alternator).
>
>
> Bob . . .
>
Message 4
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| Subject: | Re: Alternator Dropping Off Line |
Operating is 14.1, not operating is about 12.7. Please see the link below
which I should have sent to start with. I find it strange the way the
voltage slowly drops rather than a sharp on/off drop. Maybe I'll try the
switch to see what that looks like on the graph.
I will place a voltmeter on the field line next flight.
https://www.savvyanalysis.com/flight/3309601/fa4df24a-e512-4297-bf73-2a797c6ab36b
On Sat, Jul 13, 2019, 09:05 Ken Ryan <keninalaska@gmail.com> wrote:
> Bob, what is a "transient" ?
>
> On Sat, Jul 13, 2019 at 7:39 AM Robert L. Nuckolls, III <
> nuckolls.bob@aeroelectric.com> wrote:
>
>> At 12:12 AM 7/13/2019, you wrote:
>>
>> That 13.8 is at the start of a failure cycle. Normal bus voltage has been
>> 14.1 on the last several flights.
>>
>> The engine was recently overhauled, I'm trying to find out if the
>> alternator was as well. It *looks* new.
>>
>>
>>
>> Okay, it sounds like this alternator
>> has no known track record.
>>
>> [image: Emacs!]
>>
>> I put a 'ruler' on a piece of your
>> data plot and it appears that alternator
>> OPERATING is on the order of 13.7v, alternator
>> OFF is 12.4v or battery only. you've got a
>> LOT of on/off transients.
>>
>> Does this alternator have a built in
>> regulator or external regulator?
>> If INTERNAL regulator, the alternator
>> is defective. If EXTERNAL reguator,
>> you need to put a voltmeter on the
>> Field terminal during a flight to
>> see if the transient is upstream
>> (in the regulator or associate
>> wiring) or downstream (in the
>> alternator).
>>
>>
>>
>> Bob . . .
>>
>
Message 5
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| Subject: | Re: Alternator Dropping Off Line |
Ford style external regulator wired as per AEC.
On Sat, Jul 13, 2019, 09:14 Sebastien <cluros@gmail.com> wrote:
> Operating is 14.1, not operating is about 12.7. Please see the link below
> which I should have sent to start with. I find it strange the way the
> voltage slowly drops rather than a sharp on/off drop. Maybe I'll try the
> switch to see what that looks like on the graph.
>
> I will place a voltmeter on the field line next flight.
>
>
> https://www.savvyanalysis.com/flight/3309601/fa4df24a-e512-4297-bf73-2a797c6ab36b
>
> On Sat, Jul 13, 2019, 09:05 Ken Ryan <keninalaska@gmail.com> wrote:
>
>> Bob, what is a "transient" ?
>>
>> On Sat, Jul 13, 2019 at 7:39 AM Robert L. Nuckolls, III <
>> nuckolls.bob@aeroelectric.com> wrote:
>>
>>> At 12:12 AM 7/13/2019, you wrote:
>>>
>>> That 13.8 is at the start of a failure cycle. Normal bus voltage has
>>> been 14.1 on the last several flights.
>>>
>>> The engine was recently overhauled, I'm trying to find out if the
>>> alternator was as well. It *looks* new.
>>>
>>>
>>>
>>> Okay, it sounds like this alternator
>>> has no known track record.
>>>
>>> [image: Emacs!]
>>>
>>> I put a 'ruler' on a piece of your
>>> data plot and it appears that alternator
>>> OPERATING is on the order of 13.7v, alternator
>>> OFF is 12.4v or battery only. you've got a
>>> LOT of on/off transients.
>>>
>>> Does this alternator have a built in
>>> regulator or external regulator?
>>> If INTERNAL regulator, the alternator
>>> is defective. If EXTERNAL reguator,
>>> you need to put a voltmeter on the
>>> Field terminal during a flight to
>>> see if the transient is upstream
>>> (in the regulator or associate
>>> wiring) or downstream (in the
>>> alternator).
>>>
>>>
>>>
>>> Bob . . .
>>>
>>
Message 6
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| Subject: | Re: Alternator Dropping Off Line |
adjective
1.
1.
lasting only for a short time; impermanent.
"a transient cold spell"
*
noun
1.
1.
a person who is staying or working in a place for only a short time.
2.
2.
_*a momentary variation in current, voltage, or frequency.*_
On 7/13/2019 10:58 AM, Ken Ryan wrote:
> Bob, what is a "transient" ?
>
> On Sat, Jul 13, 2019 at 7:39 AM Robert L. Nuckolls, III
> <nuckolls.bob@aeroelectric.com <mailto:nuckolls.bob@aeroelectric.com>>
> wrote:
>
> At 12:12 AM 7/13/2019, you wrote:
>> That 13.8 is at the start of a failure cycle. Normal bus voltage
>> has been 14.1 on the last several flights.
>>
>> The engine was recently overhauled, I'm trying to find out if the
>> alternator was as well. It /looks/ new.
>
>
> Okay, it sounds like this alternator
> has no known track record.
>
> Emacs!
>
> I put a 'ruler' on a piece of your
> data plot and it appears that alternator
> OPERATING is on the order of 13.7v, alternator
> OFF is 12.4v or battery only. you've got a
> LOT of on/off transients.
>
> Does this alternator have a built in
> regulator or external regulator?
> If INTERNAL regulator, the alternator
> is defective. If EXTERNAL reguator,
> you need to put a voltmeter on the
> Field terminal during a flight to
> see if the transient is upstream
> (in the regulator or associate
> wiring) or downstream (in the
> alternator).
>
>
> Bob . . .
>
---
This email has been checked for viruses by Avast antivirus software.
https://www.avast.com/antivirus
Message 7
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| Subject: | Re: Alternator Dropping Off Line |
Wow, that is certainly an all-inclusive definition.
On Sat, Jul 13, 2019 at 9:24 AM Charlie England <ceengland7@gmail.com>
wrote:
> adjective
>
> 1. 1.
> lasting only for a short time; impermanent.
> "a transient cold spell"
> -
>
>
> noun
>
> 1. 1.
> a person who is staying or working in a place for only a short time.
> 2. 2.
> *a momentary variation in current, voltage, or frequency.*
>
>
> On 7/13/2019 10:58 AM, Ken Ryan wrote:
>
> Bob, what is a "transient" ?
>
> On Sat, Jul 13, 2019 at 7:39 AM Robert L. Nuckolls, III <
> nuckolls.bob@aeroelectric.com> wrote:
>
>> At 12:12 AM 7/13/2019, you wrote:
>>
>> That 13.8 is at the start of a failure cycle. Normal bus voltage has been
>> 14.1 on the last several flights.
>>
>> The engine was recently overhauled, I'm trying to find out if the
>> alternator was as well. It *looks* new.
>>
>>
>>
>> Okay, it sounds like this alternator
>> has no known track record.
>>
>> [image: Emacs!]
>>
>> I put a 'ruler' on a piece of your
>> data plot and it appears that alternator
>> OPERATING is on the order of 13.7v, alternator
>> OFF is 12.4v or battery only. you've got a
>> LOT of on/off transients.
>>
>> Does this alternator have a built in
>> regulator or external regulator?
>> If INTERNAL regulator, the alternator
>> is defective. If EXTERNAL reguator,
>> you need to put a voltmeter on the
>> Field terminal during a flight to
>> see if the transient is upstream
>> (in the regulator or associate
>> wiring) or downstream (in the
>> alternator).
>>
>>
>>
>> Bob . . .
>>
>
>
> <https://www.avast.com/sig-email?utm_medium=email&utm_source=link&utm_campaign=sig-email&utm_content=emailclient&utm_term=icon> Virus-free.
> www.avast.com
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> <#m_-949200549652384023_DAB4FAD8-2DD7-40BB-A1B8-4E2AA1F9FDF2>
>
Message 8
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| Subject: | Re: Alternator Dropping Off Line |
Hi Ken,
I highlighted & underlined what I thought was Bob's meaning when I read it;
the 2nd noun definition. Perhaps the highlight/underline didn't show up in
your email client.
If a signal (or power level) is switching on/off rapidly, it's a
'transient' (short term event).
On Sat, Jul 13, 2019 at 2:22 PM Ken Ryan <keninalaska@gmail.com> wrote:
> Wow, that is certainly an all-inclusive definition.
>
> On Sat, Jul 13, 2019 at 9:24 AM Charlie England <ceengland7@gmail.com>
> wrote:
>
>> adjective
>>
>> 1. 1.
>> lasting only for a short time; impermanent.
>> "a transient cold spell"
>> -
>>
>>
>> noun
>>
>> 1. 1.
>> a person who is staying or working in a place for only a short time.
>> 2. 2.
>> *a momentary variation in current, voltage, or frequency.*
>>
>>
>>
>>
>> On 7/13/2019 10:58 AM, Ken Ryan wrote:
>>
>> Bob, what is a "transient" ?
>>
>> On Sat, Jul 13, 2019 at 7:39 AM Robert L. Nuckolls, III <
>> nuckolls.bob@aeroelectric.com> wrote:
>>
>>> At 12:12 AM 7/13/2019, you wrote:
>>>
>>> That 13.8 is at the start of a failure cycle. Normal bus voltage has
>>> been 14.1 on the last several flights.
>>>
>>> The engine was recently overhauled, I'm trying to find out if the
>>> alternator was as well. It *looks* new.
>>>
>>>
>>>
>>> Okay, it sounds like this alternator
>>> has no known track record.
>>>
>>> [image: Emacs!]
>>>
>>> I put a 'ruler' on a piece of your
>>> data plot and it appears that alternator
>>> OPERATING is on the order of 13.7v, alternator
>>> OFF is 12.4v or battery only. you've got a
>>> LOT of on/off transients.
>>>
>>> Does this alternator have a built in
>>> regulator or external regulator?
>>> If INTERNAL regulator, the alternator
>>> is defective. If EXTERNAL reguator,
>>> you need to put a voltmeter on the
>>> Field terminal during a flight to
>>> see if the transient is upstream
>>> (in the regulator or associate
>>> wiring) or downstream (in the
>>> alternator).
>>>
>>>
>>>
>>> Bob . . .
>>>
>>
>>
>>
>> <https://www.avast.com/sig-email?utm_medium=email&utm_source=link&utm_campaign=sig-email&utm_content=emailclient&utm_term=icon> Virus-free.
>> www.avast.com
>> <https://www.avast.com/sig-email?utm_medium=email&utm_source=link&utm_campaign=sig-email&utm_content=emailclient&utm_term=link>
>> <#m_263918708704238526_m_-949200549652384023_DAB4FAD8-2DD7-40BB-A1B8-4E2AA1F9FDF2>
>>
>
Message 9
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| Subject: | Re: Alternator Dropping Off Line |
Thanks Charlie. I think I understand now what Bob is saying.
On Sat, Jul 13, 2019 at 12:02 PM Charlie England <ceengland7@gmail.com>
wrote:
> Hi Ken,
>
> I highlighted & underlined what I thought was Bob's meaning when I read
> it; the 2nd noun definition. Perhaps the highlight/underline didn't show up
> in your email client.
>
> If a signal (or power level) is switching on/off rapidly, it's a
> 'transient' (short term event).
>
> On Sat, Jul 13, 2019 at 2:22 PM Ken Ryan <keninalaska@gmail.com> wrote:
>
>> Wow, that is certainly an all-inclusive definition.
>>
>> On Sat, Jul 13, 2019 at 9:24 AM Charlie England <ceengland7@gmail.com>
>> wrote:
>>
>>> adjective
>>>
>>> 1. 1.
>>> lasting only for a short time; impermanent.
>>> "a transient cold spell"
>>> - 949200549652384023lr_dct_sf_subsen"
>>> id="gmail-m_263918708704238526gmail-m_-949200549652384023_hAcqXbWIObmF9PwP8JOsMA21"
>>> style="display:list-item;list-style-type:disc;font-size:xx-small;margin-left:25px;padding-top:5px">
>>>
>>>
>>>
>>> noun
>
> 1. 1.
> a person who is staying or working in a place for only a short time.
> 2. 2.
> *a momentary variation in current, voltage, or frequency.*
>
>
> On 7/13/2019 10:58 AM, Ken Ryan wrote:
>
> Bob, what is a "transient" ?
>
> On Sat, Jul 13, 2019 at 7:39 AM Robert L. Nuckolls, III <
> nuckolls.bob@aeroelectric.com> wrote:
>
>> At 12:12 AM 7/13/2019, you wrote:
>>
>> That 13.8 is at the start of a failure cycle. Normal bus voltage has been
>> 14.1 on the last several flights.
>>
>> The engine was recently overhauled, I'm trying to find out if the
>> alternator was as well. It *looks* new.
>>
>>
>>
>> Okay, it sounds like this alternator
>> has no known track record.
>>
>> [image: Emacs!]
>>
>> I put a 'ruler' on a piece of your
>> data plot and it appears that alternator
>> OPERATING is on the order of 13.7v, alternator
>> OFF is 12.4v or battery only. you've got a
>> LOT of on/off transients.
>>
>> Does this alternator have a built in
>> regulator or external regulator?
>> If INTERNAL regulator, the alternator
>> is defective. If EXTERNAL reguator,
>> you need to put a voltmeter on the
>> Field terminal during a flight to
>> see if the transient is upstream
>> (in the regulator or associate
>> wiring) or downstream (in the
>> alternator).
>>
>>
>>
>> Bob . . .
>>
>
>
> <https://www.avast.com/sig-email?utm_medium=email&utm_source=link&utm_campaign=sig-email&utm_content=emailclient&utm_term=icon> Virus-free.
> www.avast.com
> <https://www.avast.com/sig-email?utm_medium=email&utm_source=link&utm_campaign=sig-email&utm_content=emailclient&utm_term=link>
> <#m_1840038890319382137_m_263918708704238526_m_-949200549652384023_DAB4FAD8-2DD7-40BB-A1B8-4E2AA1F9FDF2>
>
Message 10
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| Subject: | Re: [OT] IFR-certified GPS Suggestions |
I=99m fond of the Avidyne IFD series
> On Jul 13, 2019, at 08:05, Art Zemon <art@zemon.name> wrote:
>
> This is somewhat off-topic but I figure y'all know a lot about airplanes s
o you might have opinions about avionics, too.
>
> I reserved space in my panel for a Garmin 430 WAAS or a Garmin 650. Now th
at Oshkosh is upon us, perhaps I can save a few pennies on an IFR-certified G
PS that will fit in that hole. It doesn=99t have to be a Garmin; that i
s just the size hole that I cut when I did the rest of the panel.
>
> What suggestions do you have, both for equipment and vendor?
>
> -- Art Z.
>
> --
> https://CheerfulCurmudgeon.com/
>
> Love the stranger for you yourselves were strangers in Egypt. Deut. 10:19
Message 11
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| Subject: | Updated Z-12 available yet |
Hi,
I=92ve read on the archives that Bob was working on an updated Z-12 archite
cture, that included some of the features of the Z-13 architecture. Is ther
e a final version available?
Thanks,
Michael-
Message 12
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| Subject: | Re: Alternator Dropping Off Line |
I don't know if it is significant but it seemed to be offline for longer periods
each time during the flight. Going by the download you linked to.
> On July 13, 2019 at 3:16 PM Ken Ryan <keninalaska@gmail.com> wrote:
>
> Wow, that is certainly an all-inclusive definition.
>
> On Sat, Jul 13, 2019 at 9:24 AM Charlie England < ceengland7@gmail.com mailto:ceengland7@gmail.com > wrote:
>
> > >
> > adjective
> >
> > 1. 1.
> > lasting only for a short time; impermanent.
> > "a transient cold spell"
> > o
> >
> >
> > noun
> >
> > 1. 1.
> > a person who is staying or working in a place for only
a short time.
> > 2. 2.
> > a momentary variation in current, voltage, or frequency.
> >
> >
> >
> > On 7/13/2019 10:58 AM, Ken Ryan wrote:
> >
> > > > > Bob, what is a "transient" ?
> > >
> > > On Sat, Jul 13, 2019 at 7:39 AM Robert L. Nuckolls, III < nuckolls.bob@aeroelectric.com mailto:nuckolls.bob@aeroelectric.com > wrote:
> > >
> > > > > > > At 12:12 AM 7/13/2019, you wrote:
> > > >
> > > > > > > > > That 13.8 is at the start of a failure cycle.
Normal bus voltage has been 14.1 on the last several flights.
> > > > >
> > > > > The engine was recently overhauled, I'm trying to
find out if the alternator was as well. It looks new.
> > > > >
> > > > > > > > >
> > > > Okay, it sounds like this alternator
> > > > has no known track record.
> > > >
> > > > [Emacs!]
> > > >
> > > > I put a 'ruler' on a piece of your
> > > > data plot and it appears that alternator
> > > > OPERATING is on the order of 13.7v, alternator
> > > > OFF is 12.4v or battery only. you've got a
> > > > LOT of on/off transients.
> > > >
> > > > Does this alternator have a built in
> > > > regulator or external regulator?
> > > > If INTERNAL regulator, the alternator
> > > > is defective. If EXTERNAL reguator,
> > > > you need to put a voltmeter on the
> > > > Field terminal during a flight to
> > > > see if the transient is upstream
> > > > (in the regulator or associate
> > > > wiring) or downstream (in the
> > > > alternator).
> > > >
> > > >
> > > >
> > > >
> > > > Bob . . .
> > > >
> > > > > > >
> > > > >
> > https://www.avast.com/sig-email?utm_medium=email&utm_source=link&utm_campaign=sig-email&utm_content=emailclient&utm_term=icon
> > Virus-free. www.avast.com https://www.avast.com/sig-email?utm_medium=email&utm_source=link&utm_campaign=sig-email&utm_content=emailclient&utm_term=link
> >
> > >
Message 13
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| Subject: | Re: Alternator Dropping Off Line |
Yes I found that strange. Each cycle was longer both in duration and in
time before the next one. Probably random though.
On Sat, Jul 13, 2019, 19:44 r.r.hall@cox.net r.r.hall@cox.net <
r.r.hall@cox.net> wrote:
> I don't know if it is significant but it seemed to be offline for longer
> periods each time during the flight. Going by the download you linked to.
>
>
> On July 13, 2019 at 3:16 PM Ken Ryan <keninalaska@gmail.com> wrote:
>
> Wow, that is certainly an all-inclusive definition.
>
> On Sat, Jul 13, 2019 at 9:24 AM Charlie England < ceengland7@gmail.com>
> wrote:
>
> adjective
>
>
> 1. 1.
> lasting only for a short time; impermanent.
> "a transient cold spell"
> -
>
>
> noun
>
>
> 1. 1.
> a person who is staying or working in a place for only a short time.
> 2. 2.
> *a momentary variation in current, voltage, or frequency.*
>
>
> On 7/13/2019 10:58 AM, Ken Ryan wrote:
>
> Bob, what is a "transient" ?
>
> On Sat, Jul 13, 2019 at 7:39 AM Robert L. Nuckolls, III <
> nuckolls.bob@aeroelectric.com> wrote:
>
> At 12:12 AM 7/13/2019, you wrote:
>
> That 13.8 is at the start of a failure cycle. Normal bus voltage has been
> 14.1 on the last several flights.
>
> The engine was recently overhauled, I'm trying to find out if the
> alternator was as well. It *looks* new.
>
>
> Okay, it sounds like this alternator
> has no known track record.
>
> [image: Emacs!]
>
> I put a 'ruler' on a piece of your
> data plot and it appears that alternator
> OPERATING is on the order of 13.7v, alternator
> OFF is 12.4v or battery only. you've got a
> LOT of on/off transients.
>
> Does this alternator have a built in
> regulator or external regulator?
> If INTERNAL regulator, the alternator
> is defective. If EXTERNAL reguator,
> you need to put a voltmeter on the
> Field terminal during a flight to
> see if the transient is upstream
> (in the regulator or associate
> wiring) or downstream (in the
> alternator).
>
>
> Bob . . .
>
>
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