---------------------------------------------------------- AeroElectric-List Digest Archive --- Total Messages Posted Tue 12/04/07: 6 ---------------------------------------------------------- Today's Message Index: ---------------------- 1. 07:26 AM - Re: Re: Z-12 and Z-13/20 features questions (Robert L. Nuckolls, III) 2. 07:26 AM - Re: Re: Z-12 and Z-13/20 features questions (Robert L. Nuckolls, III) 3. 02:07 PM - Re: Switches and Lights? (Robert L. Nuckolls, III) 4. 02:37 PM - Re: Why are wire strands tinned ? (Ed Anderson) 5. 02:49 PM - Re: Why are wire strands tinned ? (Gilles Thesee) 6. 02:56 PM - Re: Re: Off to Columbus (Robert L. Nuckolls, III) ________________________________ Message 1 _____________________________________ Time: 07:26:26 AM PST US From: "Robert L. Nuckolls, III" Subject: Re: AeroElectric-List: Re: Z-12 and Z-13/20 features questions At 01:12 AM 12/1/2007 -0800, you wrote: > > >nuckolls.bob(at)cox.net wrote: > > Using the battery to augment > > the SD-8 by a couple of amps is a perfectly > > valid thing to consider too. > > > > Installing an SD20 goes more to servicing an > > endurance mode limited only by volume of fuel > > aboard. > > > > In any case, Z-12 or Z-14 are my best recommendations > > for incorporating the SD-20 into a robust > > architecture. > > > > Bob . . . > > >Thanks Bob. I appreciate the input, and I'll definitely keep your thoughts >in mind. > >It's clear that you feel the 20A alternator is not "robust" in a Z-13 >architecture. I just wish I understood why. I guess I'll have to wait >until AEC Edition 12 comes out... The architecture is clumsy. It will "function as advertised" but it's not a design I'm proud of and it tends to encourage folks to "overkill" on their engine driven power sources at the expense of $time$ and weight. Many folks have mistaken my lack of recommendation as being advice NOT to do a particular thing. When I say it's not something I cannot recommend, it's a personal judgement as to whether or not it's the best we know how to do . . . the elegant solution. I.e, it's not a design I would put on my airplane. When some suggestion has issues of safety, cost of ownership or obvious design flaws with respect to performance, I'll be direct in my suggestion that you DO NOT do this particular thing and explain in detail why. I've never told folks NOT to install off-the-shelf or off-the-junker alternators per anyone's lucid and accurate instructions. I have discouraged installation of barefoot IR alternators for reasons cited and carefully explained many times. However, these are demonstrably high-quality products with much lower risks compare to their ancestors. If one is willing and able to accomplish an educated consideration and acceptance of those risks, fine by me. My mission here is to first educate and then recommend based on my own recipes for success and sense of elegant solution. A secondary goal is to assist the neophyte in steering around perceived pot-holes. Only then will my advice become much more energetic than a recommendation. Bob . . . ________________________________ Message 2 _____________________________________ Time: 07:26:27 AM PST US From: "Robert L. Nuckolls, III" Subject: Re: AeroElectric-List: Re: Z-12 and Z-13/20 features questions At 08:27 PM 11/30/2007 -0800, you wrote: > >Hi Bob, > >Could you help us all understand specifically what you do not like about >the Z-13/20? I may be slow, but I'm not sure I understand the objection >at this point. > >I originally went with the Z-12 in my project but switched to a Z-13 in >part based on some advice you provided. I'm wondering what may have >changed in your opinion. See other posting. If it's already installed as 13/20 then leave it in. Bob . . . ----------------------------------------) ( . . . a long habit of not thinking ) ( a thing wrong, gives it a superficial ) ( appearance of being right . . . ) ( ) ( -Thomas Paine 1776- ) ---------------------------------------- ________________________________ Message 3 _____________________________________ Time: 02:07:55 PM PST US From: "Robert L. Nuckolls, III" Subject: Re: AeroElectric-List: Switches and Lights? At 05:10 PM 12/3/2007 -0800, you wrote: > > >I purchased some rocker switches from aircraftspruce. On the back it says >they are rated for 20 amps. Can I use one each to run my landing, strobe >and position lights? Sure > I was talking to a well known person and he said that rocker > switches don't handle high current loads very well. Did I accidently get > good switches? I figure this well known person knows what he is talking > about so I thought I would check here. >Part K-4 12v 20amp on-off I can't imagine why. There may be some rocker switches that have demonstrated poor current handling ability . . . but a toggle actuator on the same frame would be just as bad. There's no differences internal to rocker switches that would make them less robust than their toggle switch cousins. Bob . . . ----------------------------------------) ( . . . a long habit of not thinking ) ( a thing wrong, gives it a superficial ) ( appearance of being right . . . ) ( ) ( -Thomas Paine 1776- ) ---------------------------------------- ________________________________ Message 4 _____________________________________ Time: 02:37:57 PM PST US From: "Ed Anderson" Subject: Re: AeroElectric-List: Why are wire strands tinned ? Hello Gilles, We recent exchanged e mails regarding your radiator experiments and web page. I did not recognize at that time we had exchanged e mails before (see below). Looks like even with my fading memory, a bell finally rings. Happy Holidays Ed Ed Anderson Rv-6A N494BW Rotary Powered Matthews, NC eanderson@carolina.rr.com http://www.andersonee.com http://members.cox.net/rogersda/rotary/configs.htm#N494BW http://www.dmack.net/mazda/index.html ----- Original Message ----- From: "Gilles Thesee" Sent: Saturday, October 01, 2005 5:55 PM Subject: Re: AeroElectric-List: Why are wire strands tinned ? > > > Ed Anderson a crit : > >> >> >>I believe it was done primarily for Corrosion resistance. In older >>automobiles it was not unusual to start to have electrical problems after >>about 10 years or so due to the oxygen penetrating the plastic insulation >>and causing oxidation of the copper changing the conducting properties of >>the wire. Of course it does help the solderability of the wire as well. >> >>Your name reminded me - I have an ancestor named Gilles Bertrand from >>L'eveche De St Brieuc, Bretagne France. Hope to visit someday. >> >> > > Thanks to Bob, Ed, Eric (in alphabetic order ;-) for your answers. > > Ed, the Bretagne is a fascinating land. It is the westernmost part of > France, forests, fields and moors beaten by the westerlies, ragged rocky > coasts and menhirs erected by people long forgotten. > Everywhere in Bretagne you'll feel the presence of the fairies and > magicians of past centuries, and the sea is ever present. > And yet in summer it is the warmest of all places. > > Well, would you believe I love this land ? > > Best regards, > Amicalement, > Gilles > http://contrails.free.fr > > > ________________________________ Message 5 _____________________________________ Time: 02:49:35 PM PST US From: Gilles Thesee Subject: Re: AeroElectric-List: Why are wire strands tinned ? Ed Anderson a crit : > We recent exchanged e mails regarding your radiator experiments and > web page. I did not recognize at that time we had exchanged e mails > before (see below). Looks like even with my fading memory, a bell > finally rings. Ed, Indeed your memory is far from fading ! I remember those messages on Bretagne and tinned wires. But I too did not recognize you in our conversation on Kchemann and radiators. Will soon respond to your other email. Best regards, -- Gilles http://contrails.free.fr ________________________________ Message 6 _____________________________________ Time: 02:56:33 PM PST US From: "Robert L. Nuckolls, III" Subject: Re: AeroElectric-List: Re: Off to Columbus At 01:42 PM 12/2/2007 -0800, you wrote: > > >Bob, >Thanks for your time and effort at Columbus this weekend. I was in >attendance and I really enjoyed it, especially day 2. I won't be wiring my >aircraft for probably at least another year, but between the seminar, your >website, and this excellent forum, I feel confident in moving into this >phase of the build. Hope you had an uneventful trip home and hope to see >you again someday at OSH or other function. it was a LONG one . . . visited my sister and her husband in Cincinnati for a day and drove home last night. Took right at 12 hours and got into bed about 4 am local. I'll be a tad "dingy" for a day or so but it was a good trip. I'm pleased that you found it useful. I'll probably be at OSH this year. Call my cell phone 3162097528 Fri-Sun and see where I'm hiding. Bob . . . ----------------------------------------) ( . . . a long habit of not thinking ) ( a thing wrong, gives it a superficial ) ( appearance of being right . . . ) ( ) ( -Thomas Paine 1776- ) ---------------------------------------- ------------------------------------------------------------------------------------- Other Matronics Email List Services ------------------------------------------------------------------------------------- Post A New Message aeroelectric-list@matronics.com UN/SUBSCRIBE http://www.matronics.com/subscription List FAQ http://www.matronics.com/FAQ/AeroElectric-List.htm Web Forum Interface To Lists http://forums.matronics.com Matronics List Wiki http://wiki.matronics.com Full Archive Search Engine http://www.matronics.com/search 7-Day List Browse http://www.matronics.com/browse/aeroelectric-list Browse Digests http://www.matronics.com/digest/aeroelectric-list Browse Other Lists http://www.matronics.com/browse Live Online Chat! http://www.matronics.com/chat Archive Downloading http://www.matronics.com/archives Photo Share http://www.matronics.com/photoshare Other Email Lists http://www.matronics.com/emaillists Contributions http://www.matronics.com/contribution ------------------------------------------------------------------------------------- These Email List Services are sponsored solely by Matronics and through the generous Contributions of its members.