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)
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Subject: | Re: 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 <mburbidg@gmail.com>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-
>
>
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Subject: | 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 <mburbidg@gmail.com>
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 3
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Subject: | Re: 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
>
>
-----
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Message 4
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Subject: | 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...
--> <kellym@aviating.com>
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
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Subject: | Re: 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
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Subject: | Bending ring terminals on superflex-battery cables... |
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
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Subject: | Re: 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
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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" <jmtipton@btopenworld.com>
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 <mailto:robnrobinh@comcast.net>
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
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Subject: | Re: Z12 Alternator Amps |
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
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Subject: | instrument panel connectors |
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
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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!
Bob . . .
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