---------------------------------------------------------- AeroElectric-List Digest Archive --- Total Messages Posted Mon 06/20/11: 13 ---------------------------------------------------------- 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 _____________________________________ Time: 06:30:11 AM PST US Subject: AeroElectric-List: Re: troubleshooting overvoltages From: "hhobbit" 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 _____________________________________ Time: 06:31:39 AM PST US Subject: AeroElectric-List: Re: troubleshooting overvoltages From: "Eric M. Jones" > 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 _____________________________________ Time: 07:15:49 AM PST US From: Paul McAllister Subject: Re: AeroElectric-List: Re: troubleshooting overvoltages Perhaps even the known universe do not arhive ________________________________ From: Eric M. Jones 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 _____________________________________ Time: 07:15:49 AM PST US From: "ROGER & JEAN CURTIS" Subject: RE: AeroElectric-List: 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 _____________________________________ Time: 07:29:42 AM PST US From: RGent1224@aol.com 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 6 _____________________________________ Time: 07:54:10 AM PST US From: "Robert L. Nuckolls, III" Subject: Re: AeroElectric-List: 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 _____________________________________ Time: 08:05:09 AM PST US From: "Robert L. Nuckolls, III" Subject: Re: AeroElectric-List: 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 _____________________________________ Time: 08:06:32 AM PST US From: RGent1224@aol.com 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. > ================================ (http://www.matronics.com/Navigator?AeroElectric-List) (http://www.matronics.com/contribution) ________________________________ Message 9 _____________________________________ Time: 08:49:51 AM PST US Subject: AeroElectric-List: Re: troubleshooting overvoltages From: "Eric M. Jones" 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 ____________________________________ Time: 02:02:00 PM PST US From: "Lynn Riggs" Subject: RE: AeroElectric-List: 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 ____________________________________ Time: 02:06:40 PM PST US From: RGent1224@aol.com Subject: Re: AeroElectric-List: 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 ____________________________________ Time: 02:08:42 PM PST US From: "Lynn Riggs" Subject: RE: AeroElectric-List: 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 ____________________________________ Time: 06:53:43 PM PST US From: "Robert L. Nuckolls, III" Subject: AeroElectric-List: 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. 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