Today's Message Index:
----------------------
1. 10:34 AM - Re: Small diameter Taxi Light Needed (rparigoris)
2. 10:38 AM - Re: EFI current requirements (markfw)
3. 02:10 PM - Re: Small diameter Taxi Light Needed (Peter Pengilly)
4. 04:16 PM - Re: Re: Small diameter Taxi Light Needed (Ernest Christley)
5. 04:18 PM - Re: B&C voltage regulator low voltage warning (ADDENDUM) (user9253)
6. 04:51 PM - Re: Small diameter Taxi Light Needed (Charlie England)
7. 07:37 PM - Re: Re: B&C voltage regulator low voltage warning (ADDENDUM) (Pat Little)
8. 08:08 PM - Re: Re: B&C voltage regulator low voltage warning (ADDENDUM) (Charlie England)
9. 08:11 PM - Re: More Tri-Pacer Generator Info (jnmeade)
10. 08:29 PM - Re: Re: B&C voltage regulator low voltage warning (ADDENDUM) (Pat Little)
11. 09:32 PM - Re: Re: More Tri-Pacer Generator Info (skywagon185guy .)
Message 1
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| Subject: | Re: Small diameter Taxi Light Needed |
Hi echristley What did you use for lens on your landing light? Ron P.
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=494092#494092
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| Subject: | Re: EFI current requirements |
John,
Thanks for the link to the thread of Ross's evaluation of the Shorei battery. This
is a good example of non-truth in advertising.
However, according to Ross the Shorei weighs 2.2 pounds and is good for approximately
6 ah. The EarthX ETX 900 battery is rated by them at 15.6 ah and weighs
4.9 pounds.
Since these Lithium battery manufacturers apparently all use the same (or similar)
Chinese Lithium cells I would say that EarthX is rating their batteries properly
for continuous use rather than just starting.
I will be using an EarthX 24 ah single battery in my day-VFR Carbon Cub. I will
also have the EarthX 2 ah portable "starter" battery if I forget to turn off
my master switch. It will be interesting to see if it will actually start my engine.
It's counterintuitive that such a small battery could start an O-340, but
it can supposedly do it.
I am a Vans Air Force subscriber. I lurk there and learn a ton from the thousands
of RV pilots and builders.
Thanks.
Mark
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=494093#494093
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| Subject: | Small diameter Taxi Light Needed |
Ron,
Have you looked at these?
https://flyleds.com/products/#!/Single-Spotlights/p/108852015/category=0
Says 1200 lumens over 8 degrees.
Peter
-----Original Message-----
From: owner-aeroelectric-list-server@matronics.com
<owner-aeroelectric-list-server@matronics.com> On Behalf Of rparigoris
Sent: 28 December 2019 19:37
Subject: AeroElectric-List: Small diameter Taxi Light Needed
--> <rparigor@hotmail.com>
Hi Group I have a Europa XS with limited real estate on the cowl or EZ
mounting of a Taxi LED. I have a Kuntzleman 3" diameter Hockey Puck and
could mutilate the cowl and put a clear cover over it for a lot of work. BTW
the angle coverage of Kuntzleman is 2 degrees. It's just about marginal for
taxi. My build partner has a LED Headlight for his Mountain bike that is
nothing short of amazing. It has a hot spot ~ 15 degree angle and incidental
25 degree coverage. It has a single large area of yellow LED that's ~ 1.2"
in diameter. I was comparing light from my Volvo station wagon with H7
Halogen right only headlight, Kuntzleman and Bike Headlight. Bike headlight
is whiter, brighter, better coverage than either of the other 2. The bike
mfg says it measured a precise 1,000 Lumens, but for me it seems that a lot
of Mfg kinda stretch the truth. Acid test going out and trying it and
comparing works best for me. Amazing for 1.2". The problem is it has a
control that is not conducive!
for aircraft. Computer controls things including an innovative sense of
current at the LED. They drive it hard but control controls things great. It
runs off a single Lithium battery. Being very careful to try and drive LED
with a driver, worked OK sneaking up on current to match controller. When
shut off upon turn on burned out LED. Anyway my question: Does anyone know
of a small LED that is ~ 1.25" in diameter with wide angle and throws out
incredible light? Probably needs the precise current control circuit. Can
pretty EZ mount 2 on cowl. Aerosun sells a small LED but it only has a 10
degree angle. Ron P.
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=494074#494074
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| Subject: | Re: Small diameter Taxi Light Needed |
The light is mounted in the leading edge of the wing on a 601XL.=C2- It h
as a piece of plexiglass in front of it, but nothing that could be consider
ed a "lens".
On Sunday, December 29, 2019, 1:34:51 PM EST, rparigoris <rparigor@hotm
ail.com> wrote:
m>
Hi echristley What did you use for lens on your landing light? Ron P.
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=494092#494092
=C2- =C2- =C2- =C2- =C2- -Matt Dralle, List Admin.
-
S -
WIKI -
-
=C2- =C2- =C2- =C2- =C2- -Matt Dralle, List Admin.
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| Subject: | Re: B&C voltage regulator low voltage warning (ADDENDUM) |
The alternator fuse protects the battery from a shorted "B" lead or alternator.
The fuse should be located near the battery end of the B lead.
A 40 amp ANL or 50 amp Maxi Fuse should work.
https://www.littelfuse.com/~/media/automotive/datasheets/fuses/automotive-fuses/littelfuse_maxi_32v_blade_fuses.pdf
--------
Joe Gores
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=494095#494095
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| Subject: | Re: Small diameter Taxi Light Needed |
Just a little heads-up before ordering; some of the linked LEDs and
driver modules are set up for household line voltage. Read the product
descriptions carefully.
I love the idea for at least a taxi light. Are they bright enough to use
as an actual landing light, with such a wide light pattern?
Beyond that, looking at the 110v versions is making me think about diy
hangar lights. High-bay LEDs are running anywhere from $50-$200. A
couple of those heatsinked to a 1 sq ft sheet of aluminum should come
close to what I'd get 'pre-packaged' for $100.
Charlie
On 12/28/2019 11:23 PM, Ernest Christley wrote:
> I made landing a marker lights with these.
>
> 20, 30 & 50 Watt LEDs | MPJA.COM
> <https://www.mpja.com/20-30-50-Watt-LEDs/products/580/>
>
>
>
>
>
>
>
>
> 20, 30 & 50 Watt LEDs | MPJA.COM
>
> <https://www.mpja.com/20-30-50-Watt-LEDs/products/580/>
>
> Also, add a LED turn signal controller, and you have nice strobe lights.
>
> On Saturday, December 28, 2019, 2:38:58 PM EST, rparigoris
> <rparigor@hotmail.com> wrote:
>
>
> <rparigor@hotmail.com <mailto:rparigor@hotmail.com>>
>
> Hi Group I have a Europa XS with limited real estate on the cowl or EZ
> mounting of a Taxi LED. I have a Kuntzleman 3" diameter Hockey Puck
> and could mutilate the cowl and put a clear cover over it for a lot of
> work. BTW the angle coverage of Kuntzleman is 2 degrees. It's just
> about marginal for taxi. My build partner has a LED Headlight for his
> Mountain bike that is nothing short of amazing. It has a hot spot ~ 15
> degree angle and incidental 25 degree coverage. It has a single large
> area of yellow LED that's ~ 1.2" in diameter. I was comparing light
> from my Volvo station wagon with H7 Halogen right only headlight,
> Kuntzleman and Bike Headlight. Bike headlight is whiter, brighter,
> better coverage than either of the other 2. The bike mfg says it
> measured a precise 1,000 Lumens, but for me it seems that a lot of Mfg
> kinda stretch the truth. Acid test going out and trying it and
> comparing works best for me. Amazing for 1.2". The problem is it has a
> control that is not conducive!
> for aircraft. Computer controls things including an innovative sense
> of current at the LED. They drive it hard but control controls things
> great. It runs off a single Lithium battery. Being very careful to try
> and drive LED with a driver, worked OK sneaking up on current to match
> controller. When shut off upon turn on burned out LED. Anyway my
> question: Does anyone know of a small LED that is ~ 1.25" in diameter
> with wide angle and throws out incredible light? Probably needs the
> precise current control circuit. Can pretty EZ mount 2 on cowl.
> Aerosun sells a small LED but it only has a 10 degree angle. Ron P.
>
>
> Read this topic online here:
>
> http://forums.matronics.com/viewtopic.php?p=494074#494074
>
>
> http://w &nbs================
> http://www.matronics.com/Navigator?A - MATRONICS WEB FORUMS -
> http://forp; - NEW MATRONICS LIST WIKI
> -http://wiki.matronics.com
> http://www.matronics.c
>
>
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| Subject: | Re: B&C voltage regulator low voltage warning (ADDENDUM) |
Regarding the placement of ANL or other current limiter. If it is to
protect the battery=94and not the wire=94what is the reason to
locate it near
the battery end?
On Sun, Dec 29, 2019 at 5:23 PM user9253 <fransew@gmail.com> wrote:
>
> The alternator fuse protects the battery from a shorted "B" lead or
> alternator.
> The fuse should be located near the battery end of the B lead.
> A 40 amp ANL or 50 amp Maxi Fuse should work.
>
> https://www.littelfuse.com/~/media/automotive/datasheets/fuses/automotive
-fuses/littelfuse_maxi_32v_blade_fuses.pdf
>
> --------
> Joe Gores
>
>
> Read this topic online here:
>
> http://forums.matronics.com/viewtopic.php?p=494095#494095
>
>
===========
===========
===========
===========
===========
===========
>
>
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| Subject: | Re: B&C voltage regulator low voltage warning |
(ADDENDUM)
There may be a failure to communicate. In the case of a short, the ANL
protects the B lead *from* the battery's incredibly high source current.
A secondary benefit would be protecting the battery from rapid discharge.
On 12/29/2019 9:35 PM, Pat Little wrote:
> Regarding the placement of ANL or other current limiter. If it is to
> protect the batteryand not the wirewhat is the reason to locate it
> near the battery end?
>
> On Sun, Dec 29, 2019 at 5:23 PM user9253 <fransew@gmail.com
> <mailto:fransew@gmail.com>> wrote:
>
> <fransew@gmail.com <mailto:fransew@gmail.com>>
>
> The alternator fuse protects the battery from a shorted "B" lead
> or alternator.
> The fuse should be located near the battery end of the B lead.
> A 40 amp ANL or 50 amp Maxi Fuse should work.
> https://www.littelfuse.com/~/media/automotive/datasheets/fuses/automotive-fuses/littelfuse_maxi_32v_blade_fuses.pdf
>
> --------
> Joe Gores
>
>
> Read this topic online here:
>
> http://forums.matronics.com/viewtopic.php?p=494095#494095
>
>
> ==========
> br> fts!)
> r> > rel="noreferrer"
> target="_blank">http://www.matronics.com/contribution
> -Matt Dralle, List Admin.
> ==========
> -
> Electric-List" rel="noreferrer"
> target="_blank">http://www.matronics.com/Navigator?AeroElectric-List
> ==========
> FORUMS -
> eferrer" target="_blank">http://forums.matronics.com
> ==========
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> errer" target="_blank">http://wiki.matronics.com
> ==========
> b Site -
> -Matt Dralle, List Admin.
> rel="noreferrer" target="_blank">http://www.matronics.com/contribution
> ==========
>
>
Message 9
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| Subject: | Re: More Tri-Pacer Generator Info |
The problem is a 25A circuit breaker that seems to have become intermittent.
I say that based on it having "reset" itself at least once.
Removed field wire and jumpered it to ground. Removed armature wire and put a
DC voltmeter in series with it to ground. At idle the voltage was about 6 VDC.
At 1500 RPM the voltage was 28VDC. This seems to prove the generator is producing
current. All electronics were off and we only ran this test for a couple
of seconds.
Reinstalled the voltage regulator and observed that the green VR light was off
at low RPM and the GO red light was on because generator voltage was below battery
voltage. Advancing RPM the green VR goes on and the red GO light goes off.
Seems like the VR is OK.
Why does ammeter show discharge when charging system tests good?
Started fiddling with generator circuit breaker (probably original in 1955 airplane)
and found it would engage and the ammeter showed an appropriate charge and
response to RPM and load changes.
For now, I'll treat it as a transient and watch it, but if it recurs the circuit
breaker will need to be changed out.
Thanks for the tips and encouragement.
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=494101#494101
Message 10
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| Subject: | Re: B&C voltage regulator low voltage warning (ADDENDUM) |
Got it, thanks.
On Sun, Dec 29, 2019 at 9:13 PM Charlie England <ceengland7@gmail.com>
wrote:
> There may be a failure to communicate. In the case of a short, the ANL
> protects the B lead *from* the battery's incredibly high source current.
A
> secondary benefit would be protecting the battery from rapid discharge.
>
> On 12/29/2019 9:35 PM, Pat Little wrote:
>
> Regarding the placement of ANL or other current limiter. If it is to
> protect the battery=94and not the wire=94what is the reason t
o locate it near
> the battery end?
>
> On Sun, Dec 29, 2019 at 5:23 PM user9253 <fransew@gmail.com> wrote:
>
>>
>> The alternator fuse protects the battery from a shorted "B" lead or
>> alternator.
>> The fuse should be located near the battery end of the B lead.
>> A 40 amp ANL or 50 amp Maxi Fuse should work.
>>
>> https://www.littelfuse.com/~/media/automotive/datasheets/fuses/automotiv
e-fuses/littelfuse_maxi_32v_blade_fuses.pdf
>>
>> --------
>> Joe Gores
>>
>>
>>
>>
>> Read this topic online here:
>>
>> http://forums.matronics.com/viewtopic.php?p=494095#494095
>>
>>
>>
>>
>>
>>
>> ==========
>> br> fts!)
>> r> > rel="noreferrer" target="_blank">
>> http://www.matronics.com/contribution
>> -Matt Dralle, List Admin.
>> ==========
>> -
>> Electric-List" rel="noreferrer" target="_blank">
>> http://www.matronics.com/Navigator?AeroElectric-List
>> ==========
>> FORUMS -
>> eferrer" target="_blank">http://forums.matronics.com
>> ==========
>> WIKI -
>> errer" target="_blank">http://wiki.matronics.com
>> ==========
>> b Site -
>> -Matt Dralle, List Admin.
>> rel="noreferrer" target="_blank">http://www.matronics.com/contributi
on
>> ==========
>>
>>
>>
>>
>
Message 11
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| Subject: | Re: More Tri-Pacer Generator Info |
I have seen CB's, especially old ones, do some strange behavior; like stuck
open after reset, permanently stuck closed.
You maybe on to the problem about needing to change out the CB....
On Sun, Dec 29, 2019 at 8:16 PM jnmeade <jnmeade@southslope.net> wrote:
> >
>
> The problem is a 25A circuit breaker that seems to have become
> intermittent. I say that based on it having "reset" itself at least once.
> Removed field wire and jumpered it to ground. Removed armature wire and
> put a DC voltmeter in series with it to ground. At idle the voltage was
> about 6 VDC. At 1500 RPM the voltage was 28VDC. This seems to prove the
> generator is producing current. All electronics were off and we only ran
> this test for a couple of seconds.
> Reinstalled the voltage regulator and observed that the green VR light was
> off at low RPM and the GO red light was on because generator voltage was
> below battery voltage. Advancing RPM the green VR goes on and the red GO
> light goes off. Seems like the VR is OK.
> Why does ammeter show discharge when charging system tests good?
> Started fiddling with generator circuit breaker (probably original in 1955
> airplane) and found it would engage and the ammeter showed an appropriate
> charge and response to RPM and load changes.
> For now, I'll treat it as a transient and watch it, but if it recurs the
> circuit breaker will need to be changed out.
> Thanks for the tips and encouragement.
>
>
> Read this topic online here:
>
> http://forums.matronics.com/viewtopic.php?p=494101#494101
>
>
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