AeroElectric-List Digest Archive

Fri 08/17/12


Total Messages Posted: 14



Today's Message Index:
----------------------
 
     1. 02:51 AM - Re: Should battery be charged with a higher voltage? (user9253)
     2. 05:57 AM - Re: Re: Should battery be charged with a higher voltage? (Bob McCallum)
     3. 08:47 AM - Re: Mooney Alternator woes (Ralph E. Capen)
     4. 09:41 AM - Re: Mooney Alternator woes (Robert L. Nuckolls, III)
     5. 11:27 AM - snorkel for alternator cooling (Janet Amtmann)
     6. 12:06 PM - Re: snorkel for alternator cooling (Fisher Paul A.)
     7. 12:18 PM - Re: snorkel for alternator cooling (Robert L. Nuckolls, III)
     8. 01:18 PM - Fw: Fw: WWII nostalgia folks...: History / THANKS, MEL.. (David)
     9. 03:59 PM - Re: Mooney Alternator woes (Werner Schneider)
    10. 04:21 PM - Re: Schumacher 1562a (John MacCallum)
    11. 06:05 PM - Re: snorkel for alternator cooling (F. Tim Yoder)
    12. 07:25 PM - Re: snorkel for alternator cooling (mark donahue)
    13. 07:43 PM - Re: snorkel for alternator cooling (Kelly McMullen)
    14. 09:48 PM - Re: snorkel for alternator cooling (rayj)
 
 
 


Message 1


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    Time: 02:51:35 AM PST US
    Subject: Re: Should battery be charged with a higher voltage?
    From: "user9253" <fran4sew@banyanol.com>
    Bob, Thanks for your words of wisdom. To Ron P, I could not find any reference to a diode on EuropaOwners.org. But I assume that the diode is inserted in the regulator sense wire. I had thought about doing that, but voltage measurements indicate that my battery is kept fully charged with the 13.6 volt regulator set-point. The charging instructions in the Oddyssey manual http://www.odysseybatteries.com/files/US-ODY-TM-001_0411_000.pdf pertain to a discharged battery. Since my PC680 battery never gets discharged, the Continuous Float Charge voltage of 13.6 is adequate. I appreciate your input. Joe -------- Joe Gores Read this topic online here: http://forums.matronics.com/viewtopic.php?p=381060#381060


    Message 2


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    Time: 05:57:29 AM PST US
    From: Bob McCallum <robert.mccallum2@sympatico.ca>
    Subject: Re: Should battery be charged with a higher voltage?
    Even if it were to be somewhat discharged it would still fully charge at th e 13.6 volt setting=2C it would just take longer to do so assuming the alte rnator has some headroom above the "normal" electrical loads of the aircraf t. Bob McC > Subject: AeroElectric-List: Re: Should battery be charged with a higher v oltage? > From: fran4sew@banyanol.com > Date: Fri=2C 17 Aug 2012 02:50:24 -0700 > To: aeroelectric-list@matronics.com > m> > > Bob=2C Thanks for your words of wisdom. > To Ron P=2C > I could not find any reference to a diode on EuropaOwners.org. But I ass ume that the diode is inserted in the regulator sense wire. I had thought about doing that=2C but voltage measurements indicate that my battery is ke pt fully charged with the 13.6 volt regulator set-point. > The charging instructions in the Oddyssey manual > http://www.odysseybatteries.com/files/US-ODY-TM-001_0411_000.pdf > pertain to a discharged battery. Since my PC680 battery never gets disch arged=2C the Continuous Float Charge voltage of 13.6 is adequate. > I appreciate your input. > Joe > > -------- > Joe Gores > > > > > Read this topic online here: > > http://forums.matronics.com/viewtopic.php?p=381060#381060 > > > > > > > =========== =========== =========== =========== > > >


    Message 3


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    Time: 08:47:06 AM PST US
    From: "Ralph E. Capen" <recapen@earthlink.net>
    Subject: Re: Mooney Alternator woes
    Will my B&C LR3C-14 regulator properly control the Continental's alternator? I can easily set this up for a ground-run test.... Are there different regulators based on current output capability? Thanks again! -----Original Message----- >From: "Robert L. Nuckolls, III" <nuckolls.bob@aeroelectric.com> >Sent: Aug 16, 2012 9:44 AM >To: aeroelectric-list@matronics.com >Subject: Re: AeroElectric-List: Mooney Alternator woes > > >At 08:27 AM 8/16/2012, you wrote: ><recapen@earthlink.net> > >My hangar neighbor is trying to figure out why his alternator >occasionally drops off line - requiring a weird reset sequence. He >has to shut off the battery and field, then go to a low power setting >and bring it back up again. Something about resetting an overvoltage >protection device. > >It is an M20S with Cont 550 and gear driven alternator. The first >regulator lasted only a couple of years before giving up the ghost >and the replacement was a special from Mooney. > >My first line of thinking is to locate the regulator and test >it. Nobody knows where it is hiding. >(I'm in DC - the plane is in DE...I'll be home next weekend to help more.) > >Meanwhile, does anyone have an electronic copy of the Light Plane >Maintenance article on troubleshooting alternators...and the Mooney >M20S maintenance manual? > >If we can find it, I'm hoping that we can determine if the regulator >is the culprit. > > If it takes a southern Slobovian switch-dance to > bring it back on line, it's almost certain to be > something electronic. Is the successful reset sequence > something different than what is called for in the > POH as a response to an OV trip? > > I've not had any contact with Mooney in 25+ years. I > bid an alternator controller for them while at > Electro-Mech . . . we didn't get the job. I think > Electrodelta out of White Oak, TX got it. It would > have been a Mooney-unique product. ED has changed > hands and/or moved several times over the years. > The guy who ran ED is still hanging around the > Wichita area. He MIGHT be a resource for help > wrestling with your problem. > > The LPM article is not likely to be much help. It > will be VERY generic. If it were my airplane, I'd > jeep another regulator in place of the original to > see if the problem goes away. Given the rarity of > that regulator, I'd probably go for a one-time > STC to install something more contemporary and > available. There's nothing magic about alternator > controllers . . . only the institutionalized and > market driven B.S. in which they reside. > > B&C regulators are used elsewhere on current production > airplanes . . . the FAA might look kindly upon > substitution of B&C product for what's already > installed. > > > Bob . . . > >


    Message 4


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    Time: 09:41:36 AM PST US
    From: "Robert L. Nuckolls, III" <nuckolls.bob@aeroelectric.com>
    Subject: Re: Mooney Alternator woes
    At 10:45 AM 8/17/2012, you wrote: ><recapen@earthlink.net> > >Will my B&C LR3C-14 regulator properly control the Continental's >alternator? I can easily set this up for a ground-run test.... Yes >Are there different regulators based on current output capability? Generally no. The smallest of 35A alternators draws about 3A max . . . so does a 100A machine. There's an advantage for keeping field currents low (control of internally dissipated heat). Larger machines just get more magnetic flux by more turns of larger wire and keeping the field current manageable. Further, unlike generators, the closed loop dynamics of alternators fall into a much smaller universe of characteristics such that regulators can be quite generic. The B&C linear regulator was optimized for the B&C alternators and may not be as nimble footed for transient response on a 'foreign' alternator but not bad enough to raise risk for the success of the experiment. Bob . . .


    Message 5


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    Time: 11:27:05 AM PST US
    Subject: snorkel for alternator cooling
    From: Janet Amtmann <jgamtmann2@gmail.com>
    Hello all, This is only marginally electric, but I need information. My RV6 has no alternator cooling other than the (reverse rotation) internal cooling fan. I'd like to install a snorkel to capture some cooling air at the air inlet ramp and lead it (tru a hose) to the rear of the alternator. Does anyone know of a source for these little alum. snorkels? I have no means to weld, braze or solder alum. I guess that I could make one out of an old tin can, but that's kind of tacky. Regards, Jurgen Amtmann <jgamtmann2@gmail.com>


    Message 6


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    Time: 12:06:52 PM PST US
    From: "Fisher Paul A." <FisherPaulA@johndeere.com>
    Subject: snorkel for alternator cooling
    How about Aircraft Spruce? http://www.aircraftspruce.com/catalog/appages/du ctflanges.php - Paul From: owner-aeroelectric-list-server@matronics.com [mailto:owner-aeroelectr ic-list-server@matronics.com] On Behalf Of Janet Amtmann Sent: Friday, August 17, 2012 1:25 PM Subject: AeroElectric-List: snorkel for alternator cooling Hello all, This is only marginally electric, but I need information. My RV6 has no al ternator cooling other than the (reverse rotation) internal cooling fan. I 'd like to install a snorkel to capture some cooling air at the air inlet r amp and lead it (tru a hose) to the rear of the alternator. Does anyone kn ow of a source for these little alum. snorkels? I have no means to weld, b raze or solder alum. I guess that I could make one out of an old tin can, but that's kind of tacky. Regards, Jurgen Amtmann <jgamtmann2@gmail.com<mailto:jgamtmann2@gmail.com>>


    Message 7


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    Time: 12:18:42 PM PST US
    From: "Robert L. Nuckolls, III" <nuckolls.bob@aeroelectric.com>
    Subject: Re: snorkel for alternator cooling
    At 01:25 PM 8/17/2012, you wrote: >Hello all, >This is only marginally electric, but I need information. My RV6 >has no alternator cooling other than the (reverse rotation) internal >cooling fan. I'd like to install a snorkel to capture some cooling >air at the air inlet ramp and lead it (tru a hose) to the rear of >the alternator. Does anyone know of a source for these little alum. >snorkels? I have no means to weld, braze or solder alum. I guess >that I could make one out of an old tin can, but that's kind of tacky. Are you sure you need one? I'm aware of no alternator installations in an RV that experienced difficulties attributable to overheating. Is there something different about the way your alternator is installed where it has been confirmed that extra-ordinary cooling is needed? Way back when, we used to do max hot day climbs at best angle with an alternator at full load . . . and then justify the state of the machine's cooling. Truth is that an alternator never gets operated that way. So what ever cooling was added to meet that capricious demand was wasted effort. Bob . . .


    Message 8


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    Time: 01:18:40 PM PST US
    From: David <dlposey-atlanta@att.net>
    Subject: Fwd: Fw: WWII nostalgia folks...: History / THANKS,
    MEL..


    Message 9


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    Time: 03:59:28 PM PST US
    From: Werner Schneider <glastar@gmx.net>
    Subject: Re: Mooney Alternator woes
    >> Will my B&C LR3C-14 regulator properly control the Continental's >> alternator? I can easily set this up for a ground-run test.... > > Yes > Just wonder, Ralph you've told, that your B&C is from a RV-6? That would probably be a 14V system where the Mooney has a 28V System, just carefully check. Cheers Werner


    Message 10


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    Time: 04:21:12 PM PST US
    From: "John MacCallum" <john.maccallum@bigpond.com>
    Subject: Schumacher 1562a
    >From the specs you have given I don't think it will. If it has a Transformer with multiple taps on the primary winding you may be able to get someone to alter the taps for you. If it hasn't got multiple taps on the Primary you will need a new transformer. If it's switch mode then you are stuck with the 110-140 vac unless you buy a step down transformer. 240 to 110 Vac. Cheers John MacCallum Builder #41016 VH-DUU From: owner-aeroelectric-list-server@matronics.com [mailto:owner-aeroelectric-list-server@matronics.com] On Behalf Of John & Sue Dehnert Sent: Friday, 17 August 2012 10:55 AM Subject: AeroElectric-List: Schumacher 1562a Hi all have an off subject question, will the Schumacher 1562a charger maintainer available on Amazon work on the Australian voltage of 240v ac, Schumacher specifications state input voltage 110-140v ac. Thanks for any input on the subject . John


    Message 11


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    Time: 06:05:30 PM PST US
    From: "F. Tim Yoder" <ftyoder@yoderbuilt.com>
    Subject: Re: snorkel for alternator cooling
    Maybe cut one out of an old aluminum lawn chair leg? ----- Original Message ----- From: Janet Amtmann To: aeroelectric-list@matronics.com Sent: Friday, August 17, 2012 11:25 AM Subject: AeroElectric-List: snorkel for alternator cooling Hello all, This is only marginally electric, but I need information. My RV6 has no alternator cooling other than the (reverse rotation) internal cooling fan. I'd like to install a snorkel to capture some cooling air at the air inlet ramp and lead it (tru a hose) to the rear of the alternator. Does anyone know of a source for these little alum. snorkels? I have no means to weld, braze or solder alum. I guess that I could make one out of an old tin can, but that's kind of tacky. Regards, Jurgen Amtmann <jgamtmann2@gmail.com>


    Message 12


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    Time: 07:25:52 PM PST US
    From: "mark donahue" <markdonahue@earthlink.net>
    Subject: snorkel for alternator cooling
    can you use the flexible 5/8 in corragated plastic material that we are using to direct air to our magnetos and alternators on the RV 9? Van sells it. Mark Donahue From: owner-aeroelectric-list-server@matronics.com [mailto:owner-aeroelectric-list-server@matronics.com] On Behalf Of F. Tim Yoder Sent: Friday, August 17, 2012 6:04 PM Subject: Re: AeroElectric-List: snorkel for alternator cooling Maybe cut one out of an old aluminum lawn chair leg? ----- Original Message ----- From: Janet Amtmann <mailto:jgamtmann2@gmail.com> Sent: Friday, August 17, 2012 11:25 AM Subject: AeroElectric-List: snorkel for alternator cooling Hello all, This is only marginally electric, but I need information. My RV6 has no alternator cooling other than the (reverse rotation) internal cooling fan. I'd like to install a snorkel to capture some cooling air at the air inlet ramp and lead it (tru a hose) to the rear of the alternator. Does anyone know of a source for these little alum. snorkels? I have no means to weld, braze or solder alum. I guess that I could make one out of an old tin can, but that's kind of tacky. Regards, Jurgen Amtmann <jgamtmann2@gmail.com> href="http://www.matronics.com/Navigator?AeroElectric-List">http://www.matro nics.com/Navigator?AeroElectric-List href="http://forums.matronics.com">http://forums.matronics.com href="http://www.matronics.com/contribution">http://www.matronics.com/c


    Message 13


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    Time: 07:43:34 PM PST US
    From: Kelly McMullen <kellym@aviating.com>
    Subject: Re: snorkel for alternator cooling
    I wouldn't recommend it. It is nylon material IIRC. OK but not great for warm temps under cowling. Scat tube would be the aviation product of choice. On 8/17/2012 7:24 PM, mark donahue wrote: > > can you use the flexible 5/8 in corragated plastic material that we > are using to direct air to our magnetos and alternators on the RV 9? > Van sells it. > > Mark Donahue > > *From:*owner-aeroelectric-list-server@matronics.com > [mailto:owner-aeroelectric-list-server@matronics.com] *On Behalf Of > *F. Tim Yoder > *Sent:* Friday, August 17, 2012 6:04 PM > *To:* aeroelectric-list@matronics.com > *Subject:* Re: AeroElectric-List: snorkel for alternator cooling > > ----- No virus found in this message. Checked by AVG - www.avg.com


    Message 14


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    Time: 09:48:04 PM PST US
    From: rayj <raymondj@frontiernet.net>
    Subject: Re: snorkel for alternator cooling
    FWIW Here's some dead soft aluminum tubing. I don't know if 5/8 is large enough for your needs. http://www.aircraftspruce.com/catalog/mepages/3003versatube.php Raymond Julian Kettle River, MN. "And you know that I could have me a million more friends, and all I'd have to lose is my point of view." - John Prine On 08/17/2012 01:25 PM, Janet Amtmann wrote: > Hello all, > This is only marginally electric, but I need information. My RV6 has no > alternator cooling other than the (reverse rotation) internal cooling > fan. I'd like to install a snorkel to capture some cooling air at the > air inlet ramp and lead it (tru a hose) to the rear of the alternator. > Does anyone know of a source for these little alum. snorkels? I have > no means to weld, braze or solder alum. I guess that I could make one > out of an old tin can, but that's kind of tacky. > > Regards, Jurgen Amtmann > <jgamtmann2@gmail.com <mailto:jgamtmann2@gmail.com>> > > * > > > * >




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