Today's Message Index:
----------------------
1. 03:02 AM - User Quarantine Account Information (Email Security Gateway)
2. 03:27 AM - Re: User Quarantine Account Information (GTH)
3. 04:43 AM - Re: User Quarantine Account Information (Werner Schneider)
4. 07:16 AM - Re: Alternator/Strobe whine (user9253)
5. 07:18 AM - Cigarette lighter socket to power a Garmin Aera 660 (Argonaut36)
6. 08:39 AM - Re: Cigarette lighter socket to power a Garmin Aera 660 (John M Tipton)
7. 01:34 PM - Re: Re: Revmaster 'dual' alterantors (Paul Eckenroth)
8. 01:45 PM - Re: Re: Alternator/Strobe whine (Robert L. Nuckolls, III)
9. 02:07 PM - Re: Re: Alternator/Strobe whine (Charlie England)
10. 03:20 PM - Re: User Quarantine Account Information (GTH)
11. 03:39 PM - Spam Quarantine Summary - (1) (Email Security Gateway)
12. 04:24 PM - Re: AV 30 Wiring (farmrjohn)
13. 04:53 PM - Re: Re: Alternator/Strobe whine (Rick Beebe)
14. 06:28 PM - Re: Re: AV 30 Wiring (Robert L. Nuckolls, III)
Message 1
| INDEX | Back to Main INDEX |
| NEXT | Skip to NEXT Message |
| LIST | Reply to LIST Regarding this Message |
| SENDER | Reply to SENDER Regarding this Message |
|
| Subject: | User Quarantine Account Information |
V2VsY29tZSB0byB0aGUgIEVtYWlsIFNlY3VyaXR5IEdhdGV3YXkgLiAgVGhpcyBtZXNzYWdlIGNv
bnRhaW5zIHRoZSBpbmZvcm1hdGlvbiB5b3Ugd2lsbCBuZWVkIHRvIGFjY2VzcyB5b3VyIFNwYW0g
UXVhcmFudGluZSBhbmQgUHJlZmVyZW5jZXMuCgpZb3VyIGFjY291bnQgaGFzIGJlZW4gc2V0IHRv
IHRoZSBmb2xsb3dpbmcgdXNlcm5hbWUgYW5kIHBhc3N3b3JkOgogICAgVXNlcm5hbWU6ICBhZXJv
ZWxlY3RyaWMtbGlzdEBtYXRyb25pY3MuY29tIAogICAgUGFzc3dvcmQ6ICBRTWNuWnZEKk1WQ1o9
d3lIIAoKVG8gbG9naW4gdG8geW91ciBTcGFtIFF1YXJhbnRpbmUgdXNlIHRoZSBmb2xsb3dpbmcg
bGluazogIGh0dHBzOi8vOTYuNjguMTcxLjIxIAoKICAK
Message 2
| INDEX | Back to Main INDEX |
| PREVIOUS | Skip to PREVIOUS Message |
| NEXT | Skip to NEXT Message |
| LIST | Reply to LIST Regarding this Message |
| SENDER | Reply to SENDER Regarding this Message |
|
| Subject: | Re: User Quarantine Account Information |
/Le 08/09/2020 12:00, Email Security Gateway a crit:
/
> /Welcome to the Email Security Gateway . This message contains the
> information you will need to access your Spam Quarantine and Preferences.
> / /
> Your account has been set to the following username and password:
> Username: aeroelectric-list@matronics.com
> Password: ******
> / /
> To login to your Spam Quarantine use the following link:
> https://96.68.171.21/
Hi all, anyone received the above message ?
Is it safe ?
Thanks
--
Best regards,
Gilles
http://contrails.free.fr
http://lapierre.skunkworks.free.fr
Message 3
| INDEX | Back to Main INDEX |
| PREVIOUS | Skip to PREVIOUS Message |
| NEXT | Skip to NEXT Message |
| LIST | Reply to LIST Regarding this Message |
| SENDER | Reply to SENDER Regarding this Message |
|
| Subject: | Re: User Quarantine Account Information |
Hi Gilles,
the IP belongs to Matt, so it should be safe, however I see no reason to
check for SPAM/Quarantine messages on his server :)
I guess Matt will enlight us soon if that one escaped by accident or it
is something we should use.
I guess he is installing new modules and that message escaped to the
list instead of him.
Cheers Werner
On 08.09.2020 12:26, GTH wrote:
> /Le 08/09/2020 12:00, Email Security Gateway a crit:
> /
>> /Welcome to the Email Security Gateway . This message contains the
>> information you will need to access your Spam Quarantine and Preferences.
>> / /
>> Your account has been set to the following username and password:
>> Username: aeroelectric-list@matronics.com
>> Password: ******
>> / /
>> To login to your Spam Quarantine use the following link:
>> https://96.68.171.21/
>
>
> Hi all, anyone received the above message ?
>
> Is it safe ?
>
> Thanks
>
> --
> Best regards,
> Gilles
> http://contrails.free.fr
> http://lapierre.skunkworks.free.fr
Message 4
| INDEX | Back to Main INDEX |
| PREVIOUS | Skip to PREVIOUS Message |
| NEXT | Skip to NEXT Message |
| LIST | Reply to LIST Regarding this Message |
| SENDER | Reply to SENDER Regarding this Message |
|
| Subject: | Re: Alternator/Strobe whine |
Try running power and ground to the strobes using a twisted pair of wires.
Increasing the main alternator "B" terminal wire size might help.
Make sure the main alternator terminals are clean and tight.
--------
Joe Gores
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=498258#498258
Message 5
| INDEX | Back to Main INDEX |
| PREVIOUS | Skip to PREVIOUS Message |
| NEXT | Skip to NEXT Message |
| LIST | Reply to LIST Regarding this Message |
| SENDER | Reply to SENDER Regarding this Message |
|
| Subject: | Cigarette lighter socket to power a Garmin Aera 660 |
I have recently purchased a Garmin AERA 660 portable GPS navigator. The unit holder
to be used in the airplane is equipped with a cigarette lighter connector
plug (outfitted with a 3A fast fuse).
Could somebody recommend a good quality cigarette lighter connector socket that
I can connect to the electrical system of my airplane? I would like to buy a
socket that can be installed using an Adel clamp.
Thanks
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=498259#498259
Message 6
| INDEX | Back to Main INDEX |
| PREVIOUS | Skip to PREVIOUS Message |
| NEXT | Skip to NEXT Message |
| LIST | Reply to LIST Regarding this Message |
| SENDER | Reply to SENDER Regarding this Message |
|
| Subject: | Re: Cigarette lighter socket to power a Garmin Aera |
660
Cut off the plug and connect to your electrical system
John
Sent from my iPad
----x--O--x----
> On 8 Sep 2020, at 3:37 pm, Argonaut36 <fmlibrino@msn.com> wrote:
>
>
> I have recently purchased a Garmin AERA 660 portable GPS navigator. The unit
holder to be used in the airplane is equipped with a cigarette lighter connector
plug (outfitted with a 3A fast fuse).
>
> Could somebody recommend a good quality cigarette lighter connector socket that
I can connect to the electrical system of my airplane? I would like to buy
a socket that can be installed using an Adel clamp.
>
> Thanks
>
>
>
>
> Read this topic online here:
>
> http://forums.matronics.com/viewtopic.php?p=498259#498259
>
>
>
>
>
>
>
>
>
Message 7
| INDEX | Back to Main INDEX |
| PREVIOUS | Skip to PREVIOUS Message |
| NEXT | Skip to NEXT Message |
| LIST | Reply to LIST Regarding this Message |
| SENDER | Reply to SENDER Regarding this Message |
|
| Subject: | Re: Revmaster 'dual' alterantors |
I think that there might be a misunderstanding of the Revmaster
architecture in that I don't believe that the windings for the two
generators are in tandem but are a series of 5 coils each for two
generators. I have enclosed a picture of the stator from my friend's
engine. He was running one generator at the time and you can see how
severely it was destroyed. The Phenolic base was also destroyed. The
second generator coils don't look bad but they are also ruined. To me one
of the interesting things is that the ignition coils are still functional.
My primary purpose in starting this thread was to hopefully end up with a
definite fix for the problem. Trying this or that is not practicable due
to the destructive nature of the overheating. The stator is over $500 to
replace and requires pulling the engine to do so. I'll only really know
that the problem is fixed when the smoke stays in the coils.
It seems to me that the most important change will be to use the B&C AVC1
volltage regulator since it is designed for firewall forward and can be
adjusted down to 13.7 v which is the minimum voltage that will fully
charge the EarthX battery. With the voltage reduction should come current
reduction. What I don't know (and hopefully the educated on the list can
explain) is whether restricting the voltage will also restrict the
current. Can the generator still create abnormal current and therefore
heat. I will try and incorporate thermocouples in with the coils but I'm
not sure how much advance warning they can give.
So, with the new voltage regulator set at 13.7 can the generator still pump
out current based on engine speed and battery resistance or is the current
capped since the voltage is restricted. I'm trying to determine if I have a
good chance of success here.
Does anybody want to redesign the generator to make it more robust.
Paul
[image: IMG-2451.jpeg]
On Fri, Sep 4, 2020 at 9:36 AM Robert L. Nuckolls, III <
nuckolls.bob@aeroelectric.com> wrote:
> >>So take a peek at the simplified proposal diagram.
> >>Hook the two Revmaster windings in series-aiding
> >>and bring out the center-tap. Connect in full wave
> >>configuration with only TWO junction rectifiers.
>
> I like the approach and two questions come to mind:
> How well the current will be equally divided by the two windings?
> This is half wave rectification, right?
>
>
> No, full wave . . . the current doesn't
> NEED to be exactly shared . . . each winding
> conduct on 1/2 cycle of the time independently
> of each other. Unlike the legacy, single winding
> PMA and bridge rectifier approach, this
> configuration splits the two halves onto
> separate windings . . . but it's still
> full wave rectification.
>
> I have not spun my engine yet but from examination of the windings I
> expect to see the two PMAs "IN PHASE" and as noted, single phase, not
> polyphase. Does this configuration change the expectation of roughly
> evenly divided current? If the two PMAs were out of phase by 180 degrees
> (which is possible if my talents with the "right hand rule" are off abit) I
> assume the center tap would not operate the same, if at all.
>
>
> From what I understand, the Revmaster
> PMA is wound BI-FILAR meaning two strands
> of wire side-by-by side. This produces
> two, identical windings that COULD and
> perhaps SHOULD be wired in parallel. This
> would cut the current in each winding to
> 1/2 of the total.
>
> I have to pull my engine once more before I start it (hopefully, yet this
> fall) and will examine the windings on the PMAs closely to convince myself
> of the phase relationship between the two halves.
>
>
> The result is predictable. You have two, identical
> windings sharing the same physical space
> on the stator. Voltages induced by the
> mechanics and magnetics are identical.
> Given that the burning the 'active' winding
> also burns the 'standby' winding, you do
> not have redundant systems. You might as
> well run the two windings in parallel
> which would greatly reduce the stress on
> the wires and may well drive the 'lithium'
> failure rate to zero.
>
> One final note. I've thought about this a little (clearly not as much as
> Bob). I plan on installing thermo-couples as close to the center of each
> stator base as I can. My thought is to run the engine as deigned, with OEM
> regulators and running one halve at a time. I am planning on a Odyssey
> battery (PC680) with added (2) shunt resistors in the charge circuit to
> increase the load seen by the PMAs. I plan on trying to identify what the
> conditions are that lead to the high temperature in the PMAs. I hope to be
> able to install the TCs close enough to the windings to obtain a warning
> before they overheat. I think the expected meltdown of the "enamel"
> insulation is a bit over 200C. Can anyone confirm?
>
>
> I don't know of any manufacturer of aviation
> hardware that doesn't call out Class H insulation
> for their magnet wire
>
> https://tinyurl.com/y3a7o26s
>
> Without going to some exotic wire coated
> with un-obtainium, Class H is the best
> you can buy off the shelf. So yeah, 200C
> max operating for the copper . . .
>
> Thermocoupling the windings is not a bad idea.
> Are those stator windings varnished? Getting
> a 'real' copper temperature number on a running
> machine is not easy. The closest I ever
> got to 'real' measurements was by bringing
> leads for winding-under-observation outside
> so that it could be quickly switched from
> 'service' to 'measure' mode by exciting the
> winding with a calibrated current and then
> measuring the voltage drop. Copper temperature
> can be calculated by knowing the temperature coefficient
> of resistance for copper. This had to be done
> quickly (under 100 mS) 'cause the copper cools
> very rapidly when the loads are removed and the
> heat soaks out.
>
> Generally speaking, with your 200C rated wire,
> getting thermocouple readings over 170-180C
> would be cause for concern.
>
> We KNOW this design is thermally deficient . . .
> too many of them have burned up in service.
> Too many band-aids have been suggested
> and attempted with little if any relief.
>
>
> In the long term, I'd like to install something like the CCCV regulator
> mentioned. Is there actually such a regulator designed and available for a
> PMA on an OBAM aircraft?
>
>
> Sure, they're commercial off the shelf items.
> I've got a couple on the bench now that I'm
> going to use in a proof-of-concept study. But
> after reading about the bi-filar windings
> design, I'm not sure there's much value to
> be secured by 'upgrading' the rectifier/regulator
> design for this engine.
>
> As currently configured, there is NO REDUNDANCY
> of engine driven power sources. I'm beginning
> to think one would be well advised to
> simply parallel the two windings and treat
> them as one. This alone would produce a profound
> drop in wire temperatures for any given load.
>
> Bob . . .
>
Message 8
| INDEX | Back to Main INDEX |
| PREVIOUS | Skip to PREVIOUS Message |
| NEXT | Skip to NEXT Message |
| LIST | Reply to LIST Regarding this Message |
| SENDER | Reply to SENDER Regarding this Message |
|
| Subject: | Re: Alternator/Strobe whine |
Alternator, strobe or both?
Alternator whine is almost always a ground loop issue.
Pitch of whine will go up and down with engine rpm.
It often gets louder when alternator loads are highest
like right after starting engine (recharging battery)
and all loads turned on.
Strobe whine pitches up and down in synchronization
with flashes from the strobes and is generally of
constant volume.
Which one(s) disappear when appliance is OFF.
Alternator, strobe or both?
Bob . . .
Message 9
| INDEX | Back to Main INDEX |
| PREVIOUS | Skip to PREVIOUS Message |
| NEXT | Skip to NEXT Message |
| LIST | Reply to LIST Regarding this Message |
| SENDER | Reply to SENDER Regarding this Message |
|
| Subject: | Re: Alternator/Strobe whine |
On 9/8/2020 3:41 PM, Robert L. Nuckolls, III wrote:
> Alternator, strobe or both?
>
> Alternator whine is almost always a ground loop issue.
> Pitch of whine will go up and down with engine rpm.
> It often gets louder when alternator loads are highest
> like right after starting engine (recharging battery)
> and all loads turned on.
>
> Strobe whine pitches up and down in synchronization
> with flashes from the strobes and is generally of
> constant volume.
>
> Which one(s) disappear when appliance is OFF.
> Alternator, strobe or both?
>
>
> Bob . . .
>
I think he mentioned in his reply to me that it was the 'woop woop'
indicating it is a strobe sound, but he also said that it stops when the
main alternator is turned off. (?)
--
This email has been checked for viruses by Avast antivirus software.
https://www.avast.com/antivirus
Message 10
| INDEX | Back to Main INDEX |
| PREVIOUS | Skip to PREVIOUS Message |
| NEXT | Skip to NEXT Message |
| LIST | Reply to LIST Regarding this Message |
| SENDER | Reply to SENDER Regarding this Message |
|
| Subject: | Re: User Quarantine Account Information |
Le 08/09/2020 13:41, Werner Schneider a crit:
> /
> / /
> I guess Matt will enlight us soon if that one escaped by accident or it
> is something we should use.
> / /
> I guess he is installing new modules and that message escaped to the
> list instead of him.
> /
Thank you Werner !
--
Best regards,
Gilles
http://contrails.free.fr
http://lapierre.skunkworks.free.fr
Message 11
| INDEX | Back to Main INDEX |
| PREVIOUS | Skip to PREVIOUS Message |
| NEXT | Skip to NEXT Message |
| LIST | Reply to LIST Regarding this Message |
| SENDER | Reply to SENDER Regarding this Message |
|
| Subject: | Spam Quarantine Summary - (1) |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R0lGODlhBwAXANUAAABMhQBJggJNhjprkXiQoouapgBUjQBQiRlejwBelwBZkgBknQBwqABqogCC
uwB8tAB2rgCOxwCIwQCg2ACa0gCUzQC17QCy6gCu5gCq4gCl3Qa06iS56lTN88/x/K7n+Mzx/OH3
/f///7CwsAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA
AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAACwAAAAABwAXAAAGXkCRUBQCgUSejmVp
+WwuUCgHQ61mrtiMZsvVTL7gCWVMplTO6EpkzY5I3nCJY053PO74B2TPhzD+gAwNg4QNC4eICwmL
jAkKj5AKBpOUBggHmJkEAgCdnSMFAwGjAUEAOw=
R0lGODlhBwAXANUAAABMhQBJggJNhjprkXiQoouapgBUjQBQiRlejwBelwBZkgBknQBwqABqogCC
uwB8tAB2rgCOxwCIwQCg2ACa0gCUzQC17QCy6gCu5gCq4gCl3QOz6iS56lTN88/x/K7n+Mzx/OH3
/f///7CwsAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA
AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAACwAAAAABwAXAAAGXkAQKCQqiixIS8cj
ujidmw9mSuVkrtiMZsvVTL7gCWVMplTO6EpkzY5I3nCJY053PO74B2TPhzD+gAwNg4QNC4eICwmL
jAkKj5AKBpOUBgeXmAgAm5sCBAGgAQMFI0EAOw=
Message 12
| INDEX | Back to Main INDEX |
| PREVIOUS | Skip to PREVIOUS Message |
| NEXT | Skip to NEXT Message |
| LIST | Reply to LIST Regarding this Message |
| SENDER | Reply to SENDER Regarding this Message |
|
| Subject: | Re: AV 30 Wiring |
Bump, primarily to re-ask the question about the diagram for the certified version
with the "X" in the shield symbol. Thanks, John
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=498276#498276
Message 13
| INDEX | Back to Main INDEX |
| PREVIOUS | Skip to PREVIOUS Message |
| NEXT | Skip to NEXT Message |
| LIST | Reply to LIST Regarding this Message |
| SENDER | Reply to SENDER Regarding this Message |
|
| Subject: | Re: Alternator/Strobe whine |
I'll be back at the plane on Saturday and I will do some controlled
tests. The noise pitch is definitely in sync with the strobes. When I
turn the main alternator off the noise goes away completely. My memory
is that it also goes away when I turn the strobes off (main alternator
on), but I'm not sure if there's a residual whine.
--Rick
On 9/8/2020 4:41 PM, Robert L. Nuckolls, III wrote:
> Alternator, strobe or both?
>
> Alternator whine is almost always a ground loop issue.
> Pitch of whine will go up and down with engine rpm.
> It often gets louder when alternator loads are highest
> like right after starting engine (recharging battery)
> and all loads turned on.
>
> Strobe whine pitches up and down in synchronization
> with flashes from the strobes and is generally of
> constant volume.
>
> Which one(s) disappear when appliance is OFF.
> Alternator, strobe or both?
>
>
> Bob . . .
>
Message 14
| INDEX | Back to Main INDEX |
| PREVIOUS | Skip to PREVIOUS Message |
| NEXT | Skip to NEXT Message |
| LIST | Reply to LIST Regarding this Message |
| SENDER | Reply to SENDER Regarding this Message |
|
| Subject: | Re: AV 30 Wiring |
At 06:21 PM 9/8/2020, you wrote:
>
>Bump, primarily to re-ask the question about the diagram for the
>certified version with the "X" in the shield symbol. Thanks, John
I would infer that to indicate twisted conductors . . .
but then I think one would be hard pressed to find
a shielded pair that was not twisted.
Bob . . .
Other Matronics Email List Services
These Email List Services are sponsored solely by Matronics and through the generous Contributions of its members.
-- Please support this service by making your Contribution today! --
|