---------------------------------------------------------- AeroElectric-List Digest Archive --- Total Messages Posted Mon 07/09/12: 11 ---------------------------------------------------------- Today's Message Index: ---------------------- 1. 04:33 AM - Re: Bending ring terminals on superflex-battery cables... (bob noffs) 2. 05:15 AM - Re: Bending ring terminals on superflex-battery cables... (Stuart Hutchison) 3. 05:30 AM - Re: Bending ring terminals on superflex-battery cables... (Kelly McMullen) 4. 06:14 AM - Re: Bending ring terminals on superflex-battery cables... (Stuart Hutchison) 5. 07:05 AM - Re: Bending ring terminals on superflex-battery cables... (Robert L. Nuckolls, III) 6. 07:06 AM - Re: Bending ring terminals on superflex-battery cables... (George, Neal Capt 505 TRS/DOJ) 7. 07:13 AM - Re: Bending ring terminals on superflex-battery cables... (jerb) 8. 08:08 AM - Re: Antenna length (Rob Henderson) 9. 04:54 PM - Re: Z12 Alternator Amps (maca2790) 10. 10:42 PM - instrument panel connectors (Allan Aaron) 11. 10:45 PM - (Robert L. Nuckolls, III) ________________________________ Message 1 _____________________________________ Time: 04:33:21 AM PST US Subject: Re: AeroElectric-List: Bending ring terminals on superflex-battery cables... From: bob noffs i would bend it once but never again after that. lets see what the expperts say. bob noffs On Sun, Jul 8, 2012 at 10:44 PM, Michael Burbidge wrote: > mburbidg@gmail.com> > > Is it acceptable to put a 90 degree bend in the ring terminals on the > superflex-battery cables from B&C so that the cable attaches to terminals > without tension? > > Michael- > > ________________________________ Message 2 _____________________________________ Time: 05:15:32 AM PST US From: "Stuart Hutchison" Subject: RE: AeroElectric-List: Bending ring terminals on superflex-battery cables... If you're tempted to anneal, keep in mind that that cold-worked copper (such as spark plug seals) is annealed by quenching rather than slow cooling like most other metals. The heat required to anneal would need to be quenched to avoid damage to the insulation anyway ! Cheers, Stu _____ From: owner-aeroelectric-list-server@matronics.com [mailto:owner-aeroelectric-list-server@matronics.com] On Behalf Of bob noffs Sent: Monday, July 09, 2012 9:30 PM Subject: Re: AeroElectric-List: Bending ring terminals on superflex-battery cables... i would bend it once but never again after that. lets see what the expperts say. bob noffs On Sun, Jul 8, 2012 at 10:44 PM, Michael Burbidge wrote: Is it acceptable to put a 90 degree bend in the ring terminals on the superflex-battery cables from B&C so that the cable attaches to terminals without tension? Michael ________________________________ Message 3 _____________________________________ Time: 05:30:00 AM PST US From: Kelly McMullen Subject: Re: AeroElectric-List: Bending ring terminals on superflex-battery cables... Lets clear up some misconceptions. A copper ring terminal bent once won't need annealing. Copper anneals by heating along, quenching not required. Spark plug gaskets anneal equally well whether they are air cooled or quenched. And yes, you need the copper heated to cherry red to anneal it, so you are not going to protect the insulation that comes on a ring terminal. On 7/9/2012 5:12 AM, Stuart Hutchison wrote: > If you're tempted to anneal, keep in mind that that cold-worked copper > (such as spark plug seals) is annealed by quenching rather than slow > cooling like most other metals. The heat required to anneal would > need to be quenched to avoid damage to the insulation anyway ! > Cheers, Stu > > ------------------------------------------------------------------------ > *From:* owner-aeroelectric-list-server@matronics.com > [mailto:owner-aeroelectric-list-server@matronics.com] *On Behalf Of > *bob noffs > *Sent:* Monday, July 09, 2012 9:30 PM > *To:* aeroelectric-list@matronics.com > *Subject:* Re: AeroElectric-List: Bending ring terminals on > superflex-battery cables... > > i would bend it once but never again after that. lets see what the > expperts say. > bob noffs > > ----- No virus found in this message. Checked by AVG - www.avg.com ________________________________ Message 4 _____________________________________ Time: 06:14:22 AM PST US From: "Stuart Hutchison" Subject: RE: AeroElectric-List: Bending ring terminals on superflex-battery cables... Agree with your single-bend comment Kelly. I was told otherwise by my engine shop in regard to air cooling, but I'll take your word for it in the absence of other evidence! Quenching any metal to anneal seems counter-intuitive to start with, but to think both air cooling and quenching have the same affect on a metal (copper in this case) is quite bizarre ! Yes, cherry red hardly gives plastic a chance. I've used a cool wet wrap when soldering terminals to #2 CCA fatwire with reasonable success. Heatshrink does the rest. -----Original Message----- From: owner-aeroelectric-list-server@matronics.com [mailto:owner-aeroelectric-list-server@matronics.com] On Behalf Of Kelly McMullen Sent: Monday, July 09, 2012 10:27 PM Subject: Re: AeroElectric-List: Bending ring terminals on superflex-battery cables... --> Lets clear up some misconceptions. A copper ring terminal bent once won't need annealing. Copper anneals by heating alon[e]g, quenching not required. Spark plug gaskets anneal equally well whether they are air cooled or quenched. And yes, you need the copper heated to cherry red to anneal it, so you are not going to protect the insulation that comes on a ring terminal. On 7/9/2012 5:12 AM, Stuart Hutchison wrote: > If you're tempted to anneal, keep in mind that that cold-worked copper > (such as spark plug seals) is annealed by quenching rather than slow > cooling like most other metals. The heat required to anneal would > need to be quenched to avoid damage to the insulation anyway ! > Cheers, Stu > > ---------------------------------------------------------------------- > -- > *From:* owner-aeroelectric-list-server@matronics.com > [mailto:owner-aeroelectric-list-server@matronics.com] *On Behalf Of > *bob noffs > *Sent:* Monday, July 09, 2012 9:30 PM > *To:* aeroelectric-list@matronics.com > *Subject:* Re: AeroElectric-List: Bending ring terminals on > superflex-battery cables... > > i would bend it once but never again after that. lets see what the > expperts say. > bob noffs > > ----- No virus found in this message. Checked by AVG - www.avg.com ________________________________ Message 5 _____________________________________ Time: 07:05:32 AM PST US From: "Robert L. Nuckolls, III" Subject: Re: AeroElectric-List: Bending ring terminals on superflex-battery cables... At 06:30 AM 7/9/2012, you wrote: >i would bend it once but never again after that. lets see what the >expperts say. > bob noffs Good call. Yes, the flag on a ring terminal is often shaped to accommodate wire dress but a bend as sharp as 90 degrees happens waayyy down on the s/n curve for failure (stress versus number of cycles). Don't read any imminent risk for failure here . . . you can probably bend and straighten the thing out several times before failure. I just put an 8AWG x 1/4 terminal in a vice and 'stroked' it 8 times before I could detect a reduction in resistance to bending. Failure probably started at about half that number of strokes). You've got a lot of headroom for cycles to failure under the expected vibration levels but putting that 90 degree bend in it cuts a humongous headroom number to a simply big headroom number. But as Bob has suggested, do it only once. Bob . . . ________________________________ Message 6 _____________________________________ Time: 07:06:41 AM PST US Subject: RE: AeroElectric-List: Bending ring terminals on superflex-battery cables... From: "George, Neal Capt 505 TRS/DOJ" Before you bend that tab, apply your sheet metal skills. Round the sharp edges and inspect for nicks & scratches that might start a crack. Neal -----Original Message----- From: Kelly McMullen Lets clear up some misconceptions. A copper ring terminal bent once won't need annealing. ________________________________ Message 7 _____________________________________ Time: 07:13:14 AM PST US From: jerb Subject: Re: AeroElectric-List: Bending ring terminals on superflex-battery cables... Hey Guys, Sitting on the side line reading the answers provided while technical are confusing and I don't think they have really provided the requester a clear answer to go on. One Is the terminal solid copper or some other form of other metal material plated over with copper, would that make any difference. Point is can he bend it? Regards, jerry At 10:44 PM 7/8/2012, you wrote: > >Is it acceptable to put a 90 degree bend in the ring terminals on >the superflex-battery cables from B&C so that the cable attaches to >terminals without tension? > >Michael- > ________________________________ Message 8 _____________________________________ Time: 08:08:24 AM PST US From: "Rob Henderson" Subject: RE: AeroElectric-List: Antenna length Update I just received my order from RST, I about fell over. You know just a little note in the mail or answering email or the phone or a big statement on the web site would solve most of their customer service issues. Thanks -Rob From: owner-aeroelectric-list-server@matronics.com [mailto:owner-aeroelectric-list-server@matronics.com] On Behalf Of Rob Henderson Sent: Wednesday, June 20, 2012 7:47 AM Subject: RE: AeroElectric-List: Antenna length Do not order from RST I have been waiting for a kit since January it is now almost July. They took my money though. They do not answer email and the phone number just rings. -Rob From: owner-aeroelectric-list-server@matronics.com [mailto:owner-aeroelectric-list-server@matronics.com] On Behalf Of Tim Andres Sent: Wednesday, June 20, 2012 7:23 AM Subject: Re: AeroElectric-List: Antenna length Hi John Not to be argumentative, but IMO foil dipoles are very easy to make, take perhaps 30 minutes to assemble and work quite well. Best of all they don't add drag! The foil and ferrite beads are readily available from ACS, and the leg lengths can be determined easily. For the gps you probably should use a manufactured product as most of these are powered and amplified devices. For a glass plane and antennas for VHF, I don't think there is a better option. RST sells a kit, but I keep hearing reports on an other list of the kits shipping months after the order. Tim Sent from my iPad On Jun 20, 2012, at 12:02 AM, "JOHN TIPTON" wrote: or any reason not to =9Crole my own" 1) Time spent could be better utilized 2) Professional manufactured work out of the box 3) Will the 'role my own' product be readily reproducible in case of damage to the original John ----- Original Message ----- From: Rob Henderson Sent: Tuesday, June 19, 2012 9:11 PM Subject: AeroElectric-List: Antenna length Hi all I would like to make a couple of antennas for my Glastar. Does anyone know what the length is for dipole, or any reason not to =9Crole my own=9D. Transponder: Comm: Nav: Marker: Glide Slope: UAT: I will be using Garmin GTX327 SL30 GMA340 Navworxs ADSB Thanks in advance for all advice -Rob Henderson href="http://www.matronics.com/Navigator?AeroElectric-List">http://www. matronics.com/Navigator?AeroElectric-List href="http://forums.matronics.com">http://forums.matronics.com href="http://www.matronics.com/contribution">http://www.matronics.com/c ========= st">http://www.matronics.com/Navigator?AeroElectric-List ========= cs.com ========= matronics.com/contribution ========= http://www.matronics.com/Navigator?AeroElectric-List http://forums.matronics.com http://www.matronics.com/contribution ________________________________ Message 9 _____________________________________ Time: 04:54:22 PM PST US Subject: AeroElectric-List: Re: Z12 Alternator Amps From: "maca2790" As Bob says it would seem that you have a load of at least 20 amps or more on the electrical system and because the Aux Alt output Voltage is so low some of the load is being shared with the Battery. As the battery terminal voltage starts to reduce because of current being drawn from it, the load on the Aux Alternator is slowly increasing. Hence you see the increase in indicated Aux Alt output. If 20 amps is the rated output of the AUX Alt you need to turn off unneeded equipment to get the load down to say 16 or 17 amps and so give you some headroom for battery charging. cheers John MacCallum RV10 #41016 Read this topic online here: http://forums.matronics.com/viewtopic.php?p=377820#377820 ________________________________ Message 10 ____________________________________ Time: 10:42:07 PM PST US Subject: AeroElectric-List: instrument panel connectors From: "Allan Aaron" If I were to make my instrument panel (mainly steam guages) removable, what would be the best type of connectors to use from a reliability, noise and maintenance perspective. I need to think about power, sensors and radio/audio. I realise that this may introduce some unreliability into the system - just wondering if I were to do this, what are the best type of connectors to use. Thanks - Allan ________________________________ Message 11 ____________________________________ Time: 10:45:06 PM PST US From: "Robert L. Nuckolls, III" Subject: AeroElectric-List: A few months ago there was some discussion on the List about incorporating some precision, non-contact, rotary motion transducers to some of our applications on OBAM aircraft. Well, I'm aware of one company who has already packaged the Austria-Microsystems magnetic sensors into a potentiometer like package. http://tinyurl.com/73sb7tc They sell for less $ than I can afford to make them. We'll be considering them to replace LVDT's in a new design for a flap actuator. Parts count for the new versus old system will drop by 30% or more. Anyone interested in some loose AustriaMicrosystems chips? Got about a dozen I'd part with real reasonable! 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