Today's Message Index:
----------------------
1. 06:30 AM - Re: troubleshooting overvoltages (hhobbit)
2. 06:31 AM - Re: troubleshooting overvoltages (Eric M. Jones)
3. 07:15 AM - Re: Re: troubleshooting overvoltages (Paul McAllister)
4. 07:15 AM - Re: Re: Southbridge Airport Tornado (ROGER & JEAN CURTIS)
5. 07:29 AM - Re: Re: Southbridge Airport Tornado (RGent1224@aol.com)
6. 07:54 AM - Re: Re: Southbridge Airport Tornado (Robert L. Nuckolls, III)
7. 08:05 AM - Re: Re: troubleshooting overvoltages (Robert L. Nuckolls, III)
8. 08:06 AM - Re: Re: Southbridge Airport Tornado (RGent1224@aol.com)
9. 08:49 AM - Re: troubleshooting overvoltages (Eric M. Jones)
10. 02:02 PM - Re: Re: Southbridge Airport Tornado (Lynn Riggs)
11. 02:06 PM - Re: Re: Southbridge Airport Tornado (RGent1224@aol.com)
12. 02:08 PM - Re: Re: Southbridge Airport Tornado (Lynn Riggs)
13. 06:53 PM - AeroElectric.com server down (Robert L. Nuckolls, III)
Message 1
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Subject: | Re: troubleshooting overvoltages |
Bob
Dont know for sure until it goes back for repair. I phoned the Mendelssohn repair
shop and they tell me that the Bendix King KT76C is rarely a victim of overvoltage.
There is a fuse marked LF 7A in near the edge connector which is supposedly
the first item to blow; it tested ok for continuity without removing
it from the board. Further in there is a crowbar device which I am informed cannot
be tested in place, at least one end must be desoldered. I don't want
to disturb that because I don't have conformal coating product to reinstate it
in. One might reasonably go on the assumption that the fuse would protect from
an overvoltage? or not? In either case the crowbar device should. I am awaiting
further communication from another repair shop which should help decide
that. Seems the circuit breaker was too lazy to do its job then [Evil or Very
Mad]
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=343537#343537
Message 2
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Subject: | Re: troubleshooting overvoltages |
> Say you've fried a transponder for no apparent reason.
Dear H. Hobbit,
Please furnish us AeroListers with a reasonably good schematic.
Together, we eclipse the combined intelligence of the Krell Empire....
--------
Eric M. Jones
www.PerihelionDesign.com
113 Brentwood Drive
Southbridge, MA 01550
(508) 764-2072
emjones@charter.net
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=343538#343538
Attachments:
http://forums.matronics.com//files/dabbling_with_electricity_692.pdf
Message 3
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Subject: | Re: troubleshooting overvoltages |
Perhaps even the known universe
do not arhive
________________________________
From: Eric M. Jones <emjones@charter.net>
Sent: Monday, June 20, 2011 8:28 AM
Subject: AeroElectric-List: Re: troubleshooting overvoltages
> Say you've fried a transponder for no apparent reason.
Dear H. Hobbit,
Please furnish us AeroListers with a reasonably good schematic.
Together, we eclipse the combined intelligence of the Krell Empire....
--------
Eric M. Jones
Message 4
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Subject: | Re: Southbridge Airport Tornado |
Eric M. Jones
www.PerihelionDesign.com
113 Brentwood Drive
Southbridge, MA 01550
(508) 764-2072
emjones@charter.net
Eric,
I just flew into Southbridge airport this
past week and saw the devastation. I counted about 15 damaged aircraft at
the tiedowns. The damage seemed to be everything from some wingtip damage
to total destruction. One aircraft was just a pile of rubble with the only
way to tell it was an aircraft was an engine with propeller attached in the
pile.
Hope you did not suffer any loss to the
wind.
I have my plane at North Central, certainly
glad it was not Southbridge.
Roger
Message 5
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Subject: | Re: Southbridge Airport Tornado |
Question: What program do you use to run .dat files???? I can't find
anything to run them on but I'm a computer dummy
Thanks
Dick
In a message dated 6/20/2011 9:17:01 A.M. Central Daylight Time,
mrspudandcompany@verizon.net writes:
Eric M. Jones
www.PerihelionDesign.com
113 Brentwood Drive
Southbridge, MA 01550
(508) 764-2072
emjones@charter.net
Eric,
I just flew into Southbridge airport this
past week and saw the devastation. I counted about 15 damaged aircraft at
the tiedowns. The damage seemed to be everything from some wingtip damage
to total destruction. One aircraft was just a pile of rubble with the only
way to tell it was an aircraft was an engine with propeller attached in the
pile.
Hope you did not suffer any loss to the
wind.
I have my plane at North Central, certainly
glad it was not Southbridge.
Roger
Message 6
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Subject: | Re: Southbridge Airport Tornado |
At 09:25 AM 6/20/2011, you wrote:
>Question: What program do you use to run .dat files???? I can't find
>anything to run them on but I'm a computer dummy
>Thanks
>Dick
>
.dat files are usually information files created
by some application like a spread sheet, electronic
Rolodex, data acquisition system, etc.
Thus they don't have any common industry
format and will generally be accessible only
by the application that generated it.
Bob . . .
////
(o o)
===========o00o=(_)=o00o========
< Go ahead, make my day . . . >
< show me where I'm wrong. >
================================
Message 7
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Subject: | Re: troubleshooting overvoltages |
At 08:25 AM 6/20/2011, you wrote:
>
>Bob
>Dont know for sure until it goes back for repair. I phoned the
>Mendelssohn repair shop and they tell me that the Bendix King KT76C
>is rarely a victim of overvoltage. There is a fuse marked LF 7A in
>near the edge connector which is supposedly the first item to blow;
>it tested ok for continuity without removing it from the
>board. Further in there is a crowbar device which I am informed
>cannot be tested in place, at least one end must be desoldered. I
>don't want to disturb that because I don't have conformal coating
>product to reinstate it in. One might reasonably go on the
>assumption that the fuse would protect from an overvoltage?
Actually, the Transorb is the 'protective' device.
The upstream fuse offers a means by which the
circuit may be broken if the antagonistic transient
duration is too long (like runaway alternator).
> or not? In either case the crowbar device should.
Yes, if there was a power transient event, one would
reasonably expect the transorb to stand off the event
until (1) the even ends or (2) the fuse blows.
> I am awaiting further communication from another repair shop
> which should help decide that. Seems the circuit breaker was too
> lazy to do its job then [Evil or Very Mad]
Circuit breakers are not ov protection devices any
more than fuses. They become part of an ov protection
system when combined with crowbar ov protection
devices like our OVM series devices . . . Transorbs
must be combined with fuses which are 10 to 100 times
FASTER than breakers. It's a rather common misconception
that fuses and breakers in the power distribution
system are protection for ov events. The only service
they perform is to protect wires from severe overload
along with isolating a fault such that it does not
affect the rest of the airplane.
If your fuse is intact, then perhaps there was
no OV event. The transponder may have simply
suffered a failure of a venerable component.
Bob . . .
////
(o o)
===========o00o=(_)=o00o========
< Go ahead, make my day . . . >
< show me where I'm wrong. >
================================
Message 8
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Subject: | Re: Southbridge Airport Tornado |
Ok, Thanks, I find that a lot of those files are attached to the e-mails.
I'll just disregard them in the future
Thanks again
Dick
In a message dated 6/20/2011 9:55:13 A.M. Central Daylight Time,
nuckolls.bob@aeroelectric.com writes:
At 09:25 AM 6/20/2011, you wrote:
Question: What program do you use to run .dat files???? I can't find
anything to run them on but I'm a computer dummy
Thanks
Dick
.dat files are usually information files created
by some application like a spread sheet, electronic
Rolodex, data acquisition system, etc.
Thus they don't have any common industry
format and will generally be accessible only
by the application that generated it.
Bob . . .
////
(o o)
===========o00o=(_)=o00o=========
< Go ahead, make my day . . . >
< show me where I'm wrong. >
================================
(http://www.matronics.com/Navigator?AeroElectric-List)
(http://www.matronics.com/contribution)
Message 9
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Subject: | Re: troubleshooting overvoltages |
Make sure you understand the difference between Transorbs and MOVs.
They do approximately the same thing, but MOVs are rarely used anymore because
they have an inherent wearout mechanism. So over time, they tend to age...then
fail short.
Ask the service tech for the part ID.
--------
Eric M. Jones
www.PerihelionDesign.com
113 Brentwood Drive
Southbridge, MA 01550
(508) 764-2072
emjones@charter.net
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=343560#343560
Message 10
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Subject: | Re: Southbridge Airport Tornado |
A *.dat file is a data file that is used by and other program that needs
information to run and the dat file gives it that information. What
operation system are you using?
From: owner-aeroelectric-list-server@matronics.com
[mailto:owner-aeroelectric-list-server@matronics.com] On Behalf Of
RGent1224@aol.com
Sent: Monday, June 20, 2011 9:26 AM
Subject: Re: AeroElectric-List: Re: Southbridge Airport Tornado
Question: What program do you use to run .dat files???? I can't find
anything to run them on but I'm a computer dummy
Thanks
Dick
In a message dated 6/20/2011 9:17:01 A.M. Central Daylight Time,
mrspudandcompany@verizon.net writes:
Eric M. Jones
www.PerihelionDesign.com
113 Brentwood Drive
Southbridge, MA 01550
(508) 764-2072
emjones@charter.net
Eric,
I just flew into Southbridge airport this
past week and saw the devastation. I counted about 15 damaged aircraft at
the tiedowns. The damage seemed to be everything from some wingtip damage
to total destruction. One aircraft was just a pile of rubble with the only
way to tell it was an aircraft was an engine with propeller attached in the
pile.
Hope you did not suffer any loss to the
wind.
I have my plane at North Central, certainly
glad it was not Southbridge.
Roger
Message 11
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Subject: | Re: Southbridge Airport Tornado |
windows XP Pro
In a message dated 6/20/2011 4:02:50 P.M. Central Daylight Time,
riggs_la@yahoo.com writes:
A *.dat file is a data file that is used by and other program that needs
information to run and the dat file gives it that information. What
operation system are you using?
From: owner-aeroelectric-list-server@matronics.com
[mailto:owner-aeroelectric-list-server@matronics.com] On Behalf Of RGent1224@aol.com
Sent: Monday, June 20, 2011 9:26 AM
Subject: Re: AeroElectric-List: Re: Southbridge Airport Tornado
Question: What program do you use to run .dat files???? I can't find
anything to run them on but I'm a computer dummy
Thanks
Dick
In a message dated 6/20/2011 9:17:01 A.M. Central Daylight Time,
mrspudandcompany@verizon.net writes:
Eric M. Jones
www.PerihelionDesign.com
113 Brentwood Drive
Southbridge, MA 01550
(508) 764-2072
emjones@charter.net
Eric,
I just flew into Southbridge airport this
past week and saw the devastation. I counted about 15 damaged aircraft at
the tiedowns. The damage seemed to be everything from some wingtip damage
to total destruction. One aircraft was just a pile of rubble with the only
way to tell it was an aircraft was an engine with propeller attached in the
pile.
Hope you did not suffer any loss to the
wind.
I have my plane at North Central, certainly
glad it was not Southbridge.
Roger
http://www.matronics.com/Navigator?AeroElectric-List
http://forums.matronics.com
http://www.matronics.com/contribution
(http://www.matronics.com/Navigator?AeroElectric-List)
(http://www.matronics.com/contribution)
Message 12
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Subject: | Re: Southbridge Airport Tornado |
I would be very suspicious of an email that had a dat file attached to it.
Do you have good anti-virus checking software?
From: owner-aeroelectric-list-server@matronics.com
[mailto:owner-aeroelectric-list-server@matronics.com] On Behalf Of
RGent1224@aol.com
Sent: Monday, June 20, 2011 10:04 AM
Subject: Re: AeroElectric-List: Re: Southbridge Airport Tornado
Ok, Thanks, I find that a lot of those files are attached to the e-mails.
I'll just disregard them in the future
Thanks again
Dick
In a message dated 6/20/2011 9:55:13 A.M. Central Daylight Time,
nuckolls.bob@aeroelectric.com writes:
At 09:25 AM 6/20/2011, you wrote:
Question: What program do you use to run .dat files???? I can't find
anything to run them on but I'm a computer dummy
Thanks
Dick
.dat files are usually information files created
by some application like a spread sheet, electronic
Rolodex, data acquisition system, etc.
Thus they don't have any common industry
format and will generally be accessible only
by the application that generated it.
Bob . . .
////
(o o)
===========o00o=(_)=o00o=========
< Go ahead, make my day . . . >
< show me where I'm wrong. >
================================
ist
href="http://www.matronics.com/Navigator?AeroElectric-List">http://www.matro
nics.com/Navigator?AeroElectric-List
s.matronics.com/">http://forums.matronics.com
p://www.matronics.com/contribution">http://www.matronics.com/contribution
Message 13
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Subject: | AeroElectric.com server down |
Matt tells me that the server went dirty side up sometime this morning.
It may take some time to get it back up if there's a significant hardware
failure.
Bob . . .
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