jdpnm
Joined: 26 Nov 2019
Posts: 7
|
 Posted: Wed Jul 01, 2026 6:39 am Post subject: AeroElectric-List Digest: 6 Msgs - 06/30/26 |
 |
|
Bob, So gald you are back. I've missed you!
On 01-Jul-26 12:31 AM, AeroElectric-List Digest Server wrote:
| Quote: | | Quote: | *
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AeroElectric-List Digest Archive
---
Total Messages Posted Tue 06/30/26: 6
----------------------------------------------------------
Today's Message Index:
----------------------
1. 10:33 AM - I think I'm back . . . (Robert L. Nuckolls, III)
2. 10:58 AM - Re: I think I'm back . . . (Jim Hausch)
3. 04:59 PM - Re: I think I'm back . . . (Eric Page)
4. 05:48 PM - Re: I think I'm back . . . (Sebastien)
5. 05:59 PM - Re: I think I'm back . . . (Eric Page)
6. 07:53 PM - Re: I think I'm back . . . (user9253)
________________________________ Message 1 _____________________________________
Time: 10:33:05 AM PST US
From: "Robert L. Nuckolls, III" <nuckolls.bob(at)aeroelectric.com> (nuckolls.bob(at)aeroelectric.com)
Subject: I think I'm back . . .
I owe you guys an apology for my absence . . . Our
household experienced an extra ordinary constellation
of family matters that kinda took all the fun
out of my fun-stuff. I won't burden you all with
the soap opera. Suffice it to say that major issues
are mitigated and only a few minor issues remain.
Dr. Dee is retired as of April 1. We've got a list
of fix-up projects around the house that's about
a mile long but they're all little things that
can be picked off one at a time.
I've not been completely 'disconnected' from technical
matters. There are a number of things to share in due
course.
I put the crowbar ovm project back on the
bench along with a sort-of next-generation
alternative. The original 'crow-bar' version
forced a breaker open served it's purpose
grandly for about 30 years! That technology
is still being manufactured on a constellation
of products for TC aircraft.
The problem I perceive now is that our
favorite miniature circuit breaker has become
more expensive than the ov module itself! The
rational for the crowbar architecture was
based on the fact that the circuit breaker
already existed in virtually every TC
aircraft . . . the ov module was a stand-alone
add-on.
I sincerely hope that the majority of our
builders are using fuse blocks . . . the legacy
circuit breaker panel is expensive, labor intensive,
and a poor use of panel space given that 99.9+
percent of all breakers installed in airplanes
go to the bone-yard never having been called upon
to keep a wire from catching fire.
So this begs the question, is there now a
practical way to corral an runaway alternator
by OPENING the field supply without deliberately
forcing a breaker open? I.e. can the breaker
be replaced with a fuse setting along side other
fusess in the block? The answer is yes.
We can discus that in detail in due course.
I've also acquired some sodium ion cells to
put through their paces on the battery bench.
You're probably all aware of Matt's move from
Oregon to Washington state which generated
an outage on the aeroelectric website and email
services. We've had some teething pains with
the move that had the 'Connection's business
activities in a tizzy. I think those issues
are now resolved.
In the mean time, bring me up to date. Is the
List still intact if somewhat diminished? Anyone
have issues I could ponder?
Thank you for your patience . . .
Bob . . .
////
(o o)
===========o00o=(_)=o00o========
< Go ahead, make my day . . . >
< show me where I'm wrong. >
================================
In the interest of creative evolution
for the-best-we-know-how-to-do based
on physics and repeatable experiment.
________________________________ Message 2 _____________________________________
Time: 10:58:06 AM PST US
From: Jim Hausch <jimhausch(at)gmail.com> (jimhausch(at)gmail.com)
Subject: Re: I think I'm back . . .
Hi Bob
Great to see a message from you. Glad to hear the home honey-do list isn't
anything major.
As this heat dome settles over the land and since you asked for thoughts on
projects.... I've always wondered how light of a portable air-conditioning
unit could be built if you ran it off its own, dedicated pad-mounted
alternator.
The idea being that since this is an isolated system, could one make the
operating voltage much higher and conductors/motors smaller....perhaps even
make it Alternating Current?
I do wonder what rpm limitations might be, since we'd want it to work at
idle speeds on the ground.
I also wonder if some sort of super-cap or other power storage device could
be tapped for compressor starts.
No immediate project at hand, just curiosity.
-Jim
On Tue, Jun 30, 2026, 12:37=AFPM Robert L. Nuckolls, III <
nuckolls.bob(at)aeroelectric.com> wrote:
| Quote: | I owe you guys an apology for my absence . . . Our
household experienced an extra ordinary constellation
of family matters that kinda took all the fun
out of my fun-stuff. I won't burden you all with
the soap opera. Suffice it to say that major issues
are mitigated and only a few minor issues remain.
Dr. Dee is retired as of April 1. We've got a list
of fix-up projects around the house that's about
a mile long but they're all little things that
can be picked off one at a time.
I've not been completely 'disconnected' from technical
matters. There are a number of things to share in due
course.
I put the crowbar ovm project back on the
bench along with a sort-of next-generation
alternative. The original 'crow-bar' version
forced a breaker open served it's purpose
grandly for about 30 years! That technology
is still being manufactured on a constellation
of products for TC aircraft.
The problem I perceive now is that our
favorite miniature circuit breaker has become
more expensive than the ov module itself! The
rational for the crowbar architecture was
based on the fact that the circuit breaker
already existed in virtually every TC
aircraft . . . the ov module was a stand-alone
add-on.
I sincerely hope that the majority of our
builders are using fuse blocks . . . the legacy
circuit breaker panel is expensive, labor intensive,
and a poor use of panel space given that 99.9+
percent of all breakers installed in airplanes
go to the bone-yard never having been called upon
to keep a wire from catching fire.
So this begs the question, is there now a
practical way to corral an runaway alternator
by OPENING the field supply without deliberately
forcing a breaker open? I.e. can the breaker
be replaced with a fuse setting along side other
fusess in the block? The answer is yes.
We can discus that in detail in due course.
I've also acquired some sodium ion cells to
put through their paces on the battery bench.
You're probably all aware of Matt's move from
Oregon to Washington state which generated
an outage on the aeroelectric website and email
services. We've had some teething pains with
the move that had the 'Connection's business
activities in a tizzy. I think those issues
are now resolved.
In the mean time, bring me up to date. Is the
List still intact if somewhat diminished? Anyone
have issues I could ponder?
Thank you for your patience . . .
Bob . . .
////
(o o)
===========o00o=(_)=o00o======
|
==
| Quote: | < Go ahead, make my day . . . >
< show me where I'm wrong. >
=======================
|
=========
| Quote: |
In the interest of creative evolution
for the-best-we-know-how-to-do based
on physics and repeatable experiment.
|
________________________________ Message 3 _____________________________________
Time: 04:59:43 PM PST US
Subject: Re: I think I'm back . . .
From: "Eric Page" <edpav8r(at)yahoo.com> (edpav8r(at)yahoo.com)
Bob! It's great to see you posting here again. I'm sure I speak for many here
when I say that I was worried about you. I'm very glad to see that you're back
in the saddle.
Re the Matronics move, I was happy to learn that Matt and his bride are now my
neighbors; they're two doors up the street from me! Due to my work schedule and
general laziness, we have yet to meet face-to-face, but I look forward to fixing
that. The neighbor between us tells me that they're wonderful people.
-----
It may interest you to look at a few threads that rolled by in your absence. I
very much hope that I haven't stepped on any toes...
1. I took the liberty of working on your OVM-14 Mk III design while you were away.
I drew a schematic and circuit board design, built some prototypes, tweaked
some resistor values experimentally and posted the results here:
http://forums.matronics.com/viewtopic.php?p=515351&sid=2c07cec97e78d88c2157d6d0d419c306#513215
2. The topic of low voltage monitoring came up at some point and I recalled seeing
one of your schematics that addressed the problem. I dug it up from your
archive, turned it into a circuit board, tested it and posted that as well:
http://forums.matronics.com/viewtopic.php?t=16783530&sid=2c07cec97e78d88c2157d6d0d419c306
3. I adapted the OVM-14 Mk III design to suit my specific application (controlling
the 3-phase stator feed from a Rotax 9-series engine). I added some features
that I wanted and documented the results here:
http://forums.matronics.com/viewtopic.php?t=16783524&sid=2c07cec97e78d88c2157d6d0d419c306
-----
I have fully built prototypes for the OVM-14 Mk III and for my adaptation of it.
I don't have any of the Low Voltage Monitor prototypes left, but I do have
a bare circuit board available. If you'd like one or all of these for your own
testing, just let me know; I'd be happy to provide them.
Cheers, and welcome back!
Eric
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=517202#517202
________________________________ Message 4 _____________________________________
Time: 05:48:22 PM PST US
From: Sebastien <cluros(at)gmail.com> (cluros(at)gmail.com)
Subject: Re: I think I'm back . . .
Hello Bob, good to read you again. I've been busy with other priorities
myself but always happy to keep up to date on the latest state of the art
for amateur built electrical systems.
One topic of interest, last year on AOPA's Ask the A&Ps podcast I
questioned the validity of needing to have avionics off for startup because
of "voltage spikes" and all three experts were sincere in their insistence
that these spikes could damage avionics despite thousands of recorded
starts never showing a single "spike". They said the one second sample rate
was too long an interval to record the spike. Has anyone recorded an engine
startup with oscilloscope quality voltage data? Do we know what these
starts in fact look like voltage wise?
Regards,
Sebastien
On Tue, Jun 30, 2026 at 10:37=AFAM Robert L. Nuckolls, III <
nuckolls.bob(at)aeroelectric.com> wrote:
| Quote: | I owe you guys an apology for my absence . . . Our
household experienced an extra ordinary constellation
of family matters that kinda took all the fun
out of my fun-stuff. I won't burden you all with
the soap opera. Suffice it to say that major issues
are mitigated and only a few minor issues remain.
Dr. Dee is retired as of April 1. We've got a list
of fix-up projects around the house that's about
a mile long but they're all little things that
can be picked off one at a time.
I've not been completely 'disconnected' from technical
matters. There are a number of things to share in due
course.
I put the crowbar ovm project back on the
bench along with a sort-of next-generation
alternative. The original 'crow-bar' version
forced a breaker open served it's purpose
grandly for about 30 years! That technology
is still being manufactured on a constellation
of products for TC aircraft.
The problem I perceive now is that our
favorite miniature circuit breaker has become
more expensive than the ov module itself! The
rational for the crowbar architecture was
based on the fact that the circuit breaker
already existed in virtually every TC
aircraft . . . the ov module was a stand-alone
add-on.
I sincerely hope that the majority of our
builders are using fuse blocks . . . the legacy
circuit breaker panel is expensive, labor intensive,
and a poor use of panel space given that 99.9+
percent of all breakers installed in airplanes
go to the bone-yard never having been called upon
to keep a wire from catching fire.
So this begs the question, is there now a
practical way to corral an runaway alternator
by OPENING the field supply without deliberately
forcing a breaker open? I.e. can the breaker
be replaced with a fuse setting along side other
fusess in the block? The answer is yes.
We can discus that in detail in due course.
I've also acquired some sodium ion cells to
put through their paces on the battery bench.
You're probably all aware of Matt's move from
Oregon to Washington state which generated
an outage on the aeroelectric website and email
services. We've had some teething pains with
the move that had the 'Connection's business
activities in a tizzy. I think those issues
are now resolved.
In the mean time, bring me up to date. Is the
List still intact if somewhat diminished? Anyone
have issues I could ponder?
Thank you for your patience . . .
Bob . . .
////
(o o)
===========o00o=(_)=o00o======
|
==
| Quote: | < Go ahead, make my day . . . >
< show me where I'm wrong. >
=======================
|
I owe you guys an apology for my absence . . . Our
household experienced an extra ordinary constellation
of family matters that kinda took all the fun
out of my fun-stuff. I won't burden you all with
the soap opera. Suffice it to say that major issues
are mitigated and only a few minor issues remain.
Dr. Dee is retired as of April 1. We've got a list
of fix-up projects around the house that's about
a mile long but they're all little things that
can be picked off one at a time.
I've not been completely 'disconnected' from technical
matters. There are a number of things to share in due
course.
I put the crowbar ovm project back on the
bench along with a sort-of next-generation
alternative. The original 'crow-bar' version
forced a breaker open served it's purpose
grandly for about 30 years! That technology
is still being manufactured on a constellation
of products for TC aircraft.
The problem I perceive now is that our
favorite miniature circuit breaker has become
more expensive than the ov module itself! The
rational for the crowbar architecture was
based on the fact that the circuit breaker
already existed in virtually every TC
aircraft . . . the ov module was a stand-alone
add-on.
I sincerely hope that the majority of our
builders are using fuse blocks . . . the legacy
circuit breaker panel is expensive, labor intensive,
and a poor use of panel space given that 99.9+
percent of all breakers installed in airplanes
go to the bone-yard never having been called upon
to keep a wire from catching fire.
So this begs the question, is there now a
practical way to corral an runaway alternator
by OPENING the field supply without deliberately
forcing a breaker open? I.e. can the breaker
be replaced with a fuse setting along side other
fusess in the block? The answer is yes.
We can discus that in detail in due course.
I've also acquired some sodium ion cells to
put through their paces on the battery bench.
You're probably all aware of Matt's move from
Oregon to Washington state which generated
an outage on the aeroelectric website and email
services. We've had some teething pains with
the move that had the 'Connection's business
activities in a tizzy. I think those issues
are now resolved.
In the mean time, bring me up to date. Is the
List still intact if somewhat diminished? Anyone
have issues I could ponder?
Thank you for your patience . . .
Bob . . .
////
(o o)
===========o00o=(_)=o00o======
|
0 | Quote: | | Quote: | I owe you guys an apology for my absence . . . Our
household experienced an extra ordinary constellation
of family matters that kinda took all the fun
out of my fun-stuff. I won't burden you all with
the soap opera. Suffice it to say that major issues
are mitigated and only a few minor issues remain.
Dr. Dee is retired as of April 1. We've got a list
of fix-up projects around the house that's about
a mile long but they're all little things that
can be picked off one at a time.
I've not been completely 'disconnected' from technical
matters. There are a number of things to share in due
course.
I put the crowbar ovm project back on the
bench along with a sort-of next-generation
alternative. The original 'crow-bar' version
forced a breaker open served it's purpose
grandly for about 30 years! That technology
is still being manufactured on a constellation
of products for TC aircraft.
The problem I perceive now is that our
favorite miniature circuit breaker has become
more expensive than the ov module itself! The
rational for the crowbar architecture was
based on the fact that the circuit breaker
already existed in virtually every TC
aircraft . . . the ov module was a stand-alone
add-on.
I sincerely hope that the majority of our
builders are using fuse blocks . . . the legacy
circuit breaker panel is expensive, labor intensive,
and a poor use of panel space given that 99.9+
percent of all breakers installed in airplanes
go to the bone-yard never having been called upon
to keep a wire from catching fire.
So this begs the question, is there now a
practical way to corral an runaway alternator
by OPENING the field supply without deliberately
forcing a breaker open? I.e. can the breaker
be replaced with a fuse setting along side other
fusess in the block? The answer is yes.
We can discus that in detail in due course.
I've also acquired some sodium ion cells to
put through their paces on the battery bench.
You're probably all aware of Matt's move from
Oregon to Washington state which generated
an outage on the aeroelectric website and email
services. We've had some teething pains with
the move that had the 'Connection's business
activities in a tizzy. I think those issues
are now resolved.
In the mean time, bring me up to date. Is the
List still intact if somewhat diminished? Anyone
have issues I could ponder?
Thank you for your patience . . .
Bob . . .
////
(o o)
===========o00o=(_)=o00o======
|
1 I owe you guys an apology for my absence . . . Our
household experienced an extra ordinary constellation
of family matters that kinda took all the fun
out of my fun-stuff. I won't burden you all with
the soap opera. Suffice it to say that major issues
are mitigated and only a few minor issues remain.
Dr. Dee is retired as of April 1. We've got a list
of fix-up projects around the house that's about
a mile long but they're all little things that
can be picked off one at a time.
I've not been completely 'disconnected' from technical
matters. There are a number of things to share in due
course.
I put the crowbar ovm project back on the
bench along with a sort-of next-generation
alternative. The original 'crow-bar' version
forced a breaker open served it's purpose
grandly for about 30 years! That technology
is still being manufactured on a constellation
of products for TC aircraft.
The problem I perceive now is that our
favorite miniature circuit breaker has become
more expensive than the ov module itself! The
rational for the crowbar architecture was
based on the fact that the circuit breaker
already existed in virtually every TC
aircraft . . . the ov module was a stand-alone
add-on.
I sincerely hope that the majority of our
builders are using fuse blocks . . . the legacy
circuit breaker panel is expensive, labor intensive,
and a poor use of panel space given that 99.9+
percent of all breakers installed in airplanes
go to the bone-yard never having been called upon
to keep a wire from catching fire.
So this begs the question, is there now a
practical way to corral an runaway alternator
by OPENING the field supply without deliberately
forcing a breaker open? I.e. can the breaker
be replaced with a fuse setting along side other
fusess in the block? The answer is yes.
We can discus that in detail in due course.
I've also acquired some sodium ion cells to
put through their paces on the battery bench.
You're probably all aware of Matt's move from
Oregon to Washington state which generated
an outage on the aeroelectric website and email
services. We've had some teething pains with
the move that had the 'Connection's business
activities in a tizzy. I think those issues
are now resolved.
In the mean time, bring me up to date. Is the
List still intact if somewhat diminished? Anyone
have issues I could ponder?
Thank you for your patience . . .
Bob . . .
////
(o o)
===========o00o=(_)=o00o======
|
2 | Quote: | | Quote: | I owe you guys an apology for my absence . . . Our
household experienced an extra ordinary constellation
of family matters that kinda took all the fun
out of my fun-stuff. I won't burden you all with
the soap opera. Suffice it to say that major issues
are mitigated and only a few minor issues remain.
Dr. Dee is retired as of April 1. We've got a list
of fix-up projects around the house that's about
a mile long but they're all little things that
can be picked off one at a time.
I've not been completely 'disconnected' from technical
matters. There are a number of things to share in due
course.
I put the crowbar ovm project back on the
bench along with a sort-of next-generation
alternative. The original 'crow-bar' version
forced a breaker open served it's purpose
grandly for about 30 years! That technology
is still being manufactured on a constellation
of products for TC aircraft.
The problem I perceive now is that our
favorite miniature circuit breaker has become
more expensive than the ov module itself! The
rational for the crowbar architecture was
based on the fact that the circuit breaker
already existed in virtually every TC
aircraft . . . the ov module was a stand-alone
add-on.
I sincerely hope that the majority of our
builders are using fuse blocks . . . the legacy
circuit breaker panel is expensive, labor intensive,
and a poor use of panel space given that 99.9+
percent of all breakers installed in airplanes
go to the bone-yard never having been called upon
to keep a wire from catching fire.
So this begs the question, is there now a
practical way to corral an runaway alternator
by OPENING the field supply without deliberately
forcing a breaker open? I.e. can the breaker
be replaced with a fuse setting along side other
fusess in the block? The answer is yes.
We can discus that in detail in due course.
I've also acquired some sodium ion cells to
put through their paces on the battery bench.
You're probably all aware of Matt's move from
Oregon to Washington state which generated
an outage on the aeroelectric website and email
services. We've had some teething pains with
the move that had the 'Connection's business
activities in a tizzy. I think those issues
are now resolved.
In the mean time, bring me up to date. Is the
List still intact if somewhat diminished? Anyone
have issues I could ponder?
Thank you for your patience . . .
Bob . . .
////
(o o)
===========o00o=(_)=o00o======
|
3 I owe you guys an apology for my absence . . . Our
household experienced an extra ordinary constellation
of family matters that kinda took all the fun
out of my fun-stuff. I won't burden you all with
the soap opera. Suffice it to say that major issues
are mitigated and only a few minor issues remain.
Dr. Dee is retired as of April 1. We've got a list
of fix-up projects around the house that's about
a mile long but they're all little things that
can be picked off one at a time.
I've not been completely 'disconnected' from technical
matters. There are a number of things to share in due
course.
I put the crowbar ovm project back on the
bench along with a sort-of next-generation
alternative. The original 'crow-bar' version
forced a breaker open served it's purpose
grandly for about 30 years! That technology
is still being manufactured on a constellation
of products for TC aircraft.
The problem I perceive now is that our
favorite miniature circuit breaker has become
more expensive than the ov module itself! The
rational for the crowbar architecture was
based on the fact that the circuit breaker
already existed in virtually every TC
aircraft . . . the ov module was a stand-alone
add-on.
I sincerely hope that the majority of our
builders are using fuse blocks . . . the legacy
circuit breaker panel is expensive, labor intensive,
and a poor use of panel space given that 99.9+
percent of all breakers installed in airplanes
go to the bone-yard never having been called upon
to keep a wire from catching fire.
So this begs the question, is there now a
practical way to corral an runaway alternator
by OPENING the field supply without deliberately
forcing a breaker open? I.e. can the breaker
be replaced with a fuse setting along side other
fusess in the block? The answer is yes.
We can discus that in detail in due course.
I've also acquired some sodium ion cells to
put through their paces on the battery bench.
You're probably all aware of Matt's move from
Oregon to Washington state which generated
an outage on the aeroelectric website and email
services. We've had some teething pains with
the move that had the 'Connection's business
activities in a tizzy. I think those issues
are now resolved.
In the mean time, bring me up to date. Is the
List still intact if somewhat diminished? Anyone
have issues I could ponder?
Thank you for your patience . . .
Bob . . .
////
(o o)
===========o00o=(_)=o00o======
|
4 |
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