Today's Message Index:
----------------------
1. 07:10 AM - Connectors (John M Tipton)
2. 08:01 AM - Re: Connectors (Carlos Trigo)
3. 08:28 AM - Re: Re: Battery (Ernest Christley)
4. 09:58 AM - Charging System Capacitors (Paul Millner)
5. 02:27 PM - Re: Connectors (Peter Pengilly)
6. 04:31 PM - BendixKing KX-155 repair help (jdubner)
Message 1
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Hi Guys
I've been given a batch of these connectors, does anyone know any details, do they
get squeezed (the metal connector is quit strong, but if so what squeezer
is used) or they for soldering - the wire size is about 20/22awg.
Regards
John
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=487346#487346
Attachments:
http://forums.matronics.com//files/thumbnail_img_1174_152.jpg
Message 2
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John
Those are not connectors.
The upper ones are crimping butt splicers, to join 2 wires by crimping them.
The lower ones are heat-shrink splicers, to join wires by inserting them inside
and apply heat till they shrink and hold the wires
Regards
Carlos
Enviado do meu iPhone
No dia 29/01/2019, s 15:09, John M Tipton <john@tiptonuk.eu> escreveu:
>
> Hi Guys
>
> I've been given a batch of these connectors, does anyone know any details, do
they get squeezed (the metal connector is quit strong, but if so what squeezer
is used) or they for soldering - the wire size is about 20/22awg.
>
> Regards
>
> John
>
>
>
>
> Read this topic online here:
>
> http://forums.matronics.com/viewtopic.php?p=487346#487346
>
>
>
>
> Attachments:
>
> http://forums.matronics.com//files/thumbnail_img_1174_152.jpg
>
>
>
>
>
>
Message 3
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Like I said, our current systems are built on a lifetime of experience.=C2
- This is new technology that was not even thought of when many of the sy
stems we take for granted were designed.=C2- Taking advantage of them saf
ely will require extensive analysis of all costs vs benefits.
One question that comes to mind is, "Is it acceptable to manage battery lif
e in the same way we manage fuel in the tank?"
On Monday, January 28, 2019, 5:19:33 PM EST, Ken Ryan <keninalaska@gmai
l.com> wrote:
Keep in mind that output is highly dependent upon sun angle (time of year,
time of day) and cloud cover.
On Mon, Jan 28, 2019 at 12:37 PM Ernest Christley <echristley@att.net> wrot
e:
Consider the following in conjunction with the charge controller.=C2- I'
m limited to day-VFR, and my bladder keeps my flying legs down to 2 hours.
=C2- My running current draw is somewhere down around 10 amps.=C2- With
a couple of these plastered to the top of my wings, and a battery appropri
ately sized for a couple hours of runtime, would I EVER run out of electron
s before fuel?=C2- At around $110, these would definitely be cheaper than
a mechanical electron pusher.=C2- Without relays and crowbars, et. al.,
I would expect the wiring to be MUCH simpler.=C2- The weight is quoted as
"less than 5 lbs", so lighter than all but the smallest of generators (?).
This would be a major departure from years of lessons learned in the aircra
ft community, but. . .
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On Monday, January 28, 2019, 3:05:17 PM EST, Robert L. Nuckolls, III <n
uckolls.bob@aeroelectric.com> wrote:
eBay thing 183558004137
It would appear that this specific one works with a sun-basedcontribution o
f 6 to 18
volts. There are unquestionably some shabby reasonable choices accessiblefo
r the
Do-It-Yourselfer.=C3=AF=C2=C2=BD Much more are accessible for Lithiumbat
teries.
=C2- These do look intereseting . . . I've got
=C2- some on order.
=C2- Bob . . .
Message 4
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| Subject: | Charging System Capacitors |
Hi Bob et al.
My '76 Cessna Cardinal has three capacitors in the charging system. I'm
wondering if all of these are still considered part of theconventional
wisdom, or how that has evolved over time.
1) There's an alternator output capacitor on the back of the alternator,
such as this from Aircraft Spruce:
https://www.aircraftspruce.com/catalog/elpages/lsAlternatorfilter.php?clickkey=21026
That seems harmless enough.
2) There's a capacitor across the overvoltage relay sensor, on the
regulator INPUT line, between the 5 amp field circuit breaker and the
alternator half of the master switch. Some Cardinal folks have reported
removing that capacitor, in conjunction with removing the OV relay in
favor of a regulator that has integral OV protection, increases the
likelihood of nuisance OV trips of the regulator.
3) There's a capacitor on the regulator OUTPUT to the field terminal of
the alternator, mounted on the firewall in a metal box. I'm not sure
these regulator-field-output filter capacitors are now considered good
practice.
Here's some John Schwaner tips on charging system filtering.
https://www.avweb.com/news/maint/182896-1.html
What's the current wisdom on these three capacitors? They occasionally
explode for a variety of capacitor-deterioration reasons.
Paul
Message 5
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John,
They are a type of butt splice. See RS part no 712-2359 or TE Connectivity
6-1195131-3. If the stripes are red they are for 22 to 20awg (or possibly
18awg) wire. The heat shrink goes over one of the wires, then crimp on the
metal part to each wire. An open side crimper is required, such as
https://uk.rs-online.com/web/p/products/4445693/, but they can be
expensive...
They are smaller diameter than the conventional PIDG butt splice.
Peter
-----Original Message-----
From: owner-aeroelectric-list-server@matronics.com
<owner-aeroelectric-list-server@matronics.com> On Behalf Of John M Tipton
Sent: 29 January 2019 15:10
Subject: AeroElectric-List: Connectors
--> <john@tiptonuk.eu>
Hi Guys
I've been given a batch of these connectors, does anyone know any details,
do they get squeezed (the metal connector is quit strong, but if so what
squeezer is used) or they for soldering - the wire size is about 20/22awg.
Regards
John
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=487346#487346
Attachments:
http://forums.matronics.com//files/thumbnail_img_1174_152.jpg
Message 6
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| Subject: | BendixKing KX-155 repair help |
My ancient KX-155 quit suddenly and it's not just the display -- the unit went
totally dead while in use.
Opening it up I found a blown 10A fuse but replacing it did no good. The unit
tries to draw enough current to blow a replacement fuse (but I'm limiting the
input current to prevent that).
The four large electrolytic capacitors look good (not physically puffed out) and
there's no sign of a smoked component.
IMO it's not worth putting more than $100 into it so taking it to an avionics shop
is not an attractive option. But perhaps I can repair it myself assuming
it doesn't need a part made of Unobtanium (like the display).
I have a connector wiring diagram but no schematic or service manual.
So my question is where do I go from here? Has anyone on this forum poked around
in a KX-155 and can offer some suggestions?
Thanks,
Joe,
Independence, OR
--------
RV-8A
Independence, OR
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=487358#487358
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