Today's Message Index:
----------------------
1. 11:55 AM - A refresher question about switching for the battery and "alternator." (Andrew Zachar)
2. 01:32 PM - Position Lights/Strobes (Rick Lark)
3. 02:03 PM - Re: A refresher question about switching for the battery and "alternator." (Robert L. Nuckolls, III)
4. 02:25 PM - Re: Position Lights/Strobes (Bob Meyers)
5. 08:11 PM - Re: Position Lights/Strobes (rparigor@suffolk.lib.ny.us)
6. 08:46 PM - Re: Position Lights/Strobes (Kelly McMullen)
7. 09:36 PM - Re: Position Lights/Strobes (Bob Meyers)
Message 1
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| Subject: | A refresher question about switching for the battery |
and "alternator."
Good afternoon, everyone.
I need a little refresher on the latest guidance on DC Power Master
switches. (Quoting from
http://www.aeroelectric.com/articles/Alternators/Know_Your_Charging_System.pdf,
which quotes another article...)
"The alternator switch turns the voltage regulator on and off, not
the alternator output. The voltage to the alternator switch comes from
the alternator field circuit breaker, which is tied directly to the aircraft
battery through the master switch." (I think I'm correct in pointing out
that the field circuit is from the bus, and whether the bus is getting it's
electrons from the battery or alternator is another matter...)
One of the larger discussions is with reference to the split rocker: "1)
Leave the alternator switch OFF BEFORE starting the engine," and "2) Turn
the alternator switch ON AFTER the engine is running." Mr. Nuckolls responds
to this by pointing out there is "there is no demonstration in the physics
of how alternators work that will support this notion...[that starting the
engine with both sides powered somehow overloads the alternator, causing
failure.]" Okay. I understand.
Mr. Nuckolls also points out that even if you WANTED to sit on the ground
without the engine running listening to the radio, why would one turn on
both sides of the DC power master switch?) Also, "Yes, any truly qualified
mechanic will conduct ground tests of electrical system components with only
the battery side of the switch closed.")
Okay, so while I won't hurt the alternator by cranking with both sides
powered, you shouldn't sit around (with the engine not running) with them
both on for fun...
Here's the actual question. I see in Figure 11-20 of AEC (page 8-98), the
example DC Power master is a DPST switch (same with Z-10/8 and Z-13/8), but
some of the other diagrams show a DPDT with OFF-BATT-BATT/ALT. Why the
difference?
I'd rather use a DPST, but is there a good reason to use the DPDT? If I have
a DPST, will pulling the ALT FLD breaker be the same as leaving the ALT side
of the split rocker OFF in the few cases I'll be "sitting around listening
to the radio?" I think the answer is no (removing field circuit power
instead of voltage regulator power), but then how do I mitigate against the
scenarios above?
As always, thanks in advance.
--
Andrew Zachar
andrew.d.zachar@gmail.com
Message 2
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| Subject: | Position Lights/Strobes |
Hi all
-
I'm researching lighting options for my RV10 project.- I've looked at Ave
o Leds, Aero Leds, Whelen, and Kuntzleman.- The Aveo & Aero leds look lik
e great products but pricey. The Whelen products also look-nice but again
pricey.
-
I'm leaning towards the Kuntzlemean package that has the 3 position lights
(led), with integrated Xe flash tubes, or a home made system which,-when
you add all the componets up,-starts to approach the Kuntzleman price of
$620.- The homemade system also carries a posible issue with the LED posi
tion lights not having the proper 110/140 degree beams.
-
My goal is to have red, green and white led position lights, and 3 strobes
with at least the wing tips strobes synchronized.
-
Anyone have an opinion on Kuntzlemman products?- Sounds like they've been
arounf for about 20 years, but I know nothing about them.-
-
All opinions welcomed.
-
Rick
#40956
Southampton, Ont
Message 3
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| Subject: | Re: A refresher question about switching for the |
battery and "alternator."
At 01:50 PM 9/27/2011, you wrote:
Good afternoon, everyone.
<snip>
Okay, so while I won't hurt the alternator by cranking with both
sides powered, you shouldn't sit around (with the engine not running)
with them both on for fun...
Correct. When the alternator field is ON but the shaft not
turning, the field draws full-up excitation current that
only serves to waste battery energy.
Here's the actual question. I see in Figure 11-20 of AEC (page 8-98),
the example DC Power master is a DPST switch (same with Z-10/8 and
Z-13/8), but some of the other diagrams show a DPDT with
OFF-BATT-BATT/ALT. Why the difference?
I'd rather use a DPST, but is there a good reason to use the DPDT? If
I have a DPST, will pulling the ALT FLD breaker be the same as
leaving the ALT side of the split rocker OFF in the few cases I'll be
"sitting around listening to the radio?" I think the answer is no
(removing field circuit power instead of voltage regulator power),
but then how do I mitigate against the scenarios above?
What ever means you choose to used for removing
field excitation during battery-only ops is up
to you. If you opt for crowbar ov protection,
then the CB offers a convenient means for accomplishing
the task with a simpler switch. You choose.
Bob . . .
Message 4
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| Subject: | Re: Position Lights/Strobes |
I got the Aveoflash Powerburst and am very happy with them. They are only $4
00 for the pair at Wicks.
http://www.wicksaircraft.com/catalog/product_cat.php/subid=12541/index.htm
l
Bob Meyers
Flying my Sonex N982SX - Building log at http://n982sx.com
Sent from my iPad
On Sep 27, 2011, at 3:27 PM, Rick Lark <larkrv10@yahoo.ca> wrote:
>
> Hi all
>
> I'm researching lighting options for my RV10 project. I've looked at Aveo
Leds, Aero Leds, Whelen, and Kuntzleman. The Aveo & Aero leds look like gr
eat products but pricey. The Whelen products also look nice but again pricey
.
>
> I'm leaning towards the Kuntzlemean package that has the 3 position lights
(led), with integrated Xe flash tubes, or a home made system which, when yo
u add all the componets up, starts to approach the Kuntzleman price of $620.
The homemade system also carries a posible issue with the LED position lig
hts not having the proper 110/140 degree beams.
>
> My goal is to have red, green and white led position lights, and 3 strobes
with at least the wing tips strobes synchronized.
>
> Anyone have an opinion on Kuntzlemman products? Sounds like they've been a
rounf for about 20 years, but I know nothing about them.
>
> All opinions welcomed.
>
> Rick
> #40956
> Southampton, Ont
>
>
==========================
=========
==========================
=========
==========================
=========
==========================
=========
>
Message 5
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| Subject: | Re: Position Lights/Strobes |
Hi Rick
PITA Noise!
I ended up having to put two strobe power supplies in the wingtips
instead of one in the fuse. Follow links how I wired to keep noise down.
:
http://www.europaowners.org/forums/gallery2.php?g2_itemId=31409
Kunzleman not too much a help, just kept reminding me how inexpensive
their unit was and insinuating that not all have noise issues. Do a
search and you can find others with the exact same noise issues as I
had.
After talking to Bob, he kept reminding me that strobes should have been
designed to not make noise in the first place. Bob offered to help
Kunzleman make them less noisy but they were not interested.
Twisted power leads to strobe are much better than shielded power leads
to strobe. As a matter of fact straight run power leads are better than
shielded!
Ron Parigoris
>
>
>
>
>
> Hi all
>
> I'm researching lighting options for my RV10 project.
I've looked at Aveo
> Leds, Aero Leds, Whelen, and Kuntzleman. The Aveo & Aero
leds look like
> great products but pricey. The Whelen products also looknice
but again
> pricey.
>
> I'm leaning towards the Kuntzlemean package that has the 3
position lights
> (led), with integrated Xe flash tubes, or a home made system
which,when
> you add all the componets up,starts to approach the Kuntzleman
price of
> $620. The homemade system also carries a posable issue with
the LED
> position lights not having the proper 110/140 degree beams.
>
> My goal is to have red, green and white led position lights, and 3
strobes
> with at least the wing tips strobes synchronized.
>
> Anyone have an opinion on Kuntzlemman products? Sounds like
they've been
> arounf for about 20 years, but I know nothing about them.
>
> All opinions welcomed.
>
> Rick
> #40956
> Southampton, Ont
Message 6
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| Subject: | Re: Position Lights/Strobes |
The same product is $396 from Spruce. Just depends on where you are for
shipping and which vendor you prefer.
However, they are not a good choice for the RV-10 which has enclosed
wingtips. Aveo does offer an embedded and more powerful version for
about double the money.
On 9/27/2011 2:22 PM, Bob Meyers wrote:
> I got the Aveoflash Powerburst and am very happy with them. They are
> only $400 for the pair at Wicks.
>
> http://www.wicksaircraft.com/catalog/product_cat.php/subid=12541/index.html
>
> Bob Meyers
>
> Flying my Sonex N982SX - Building log at http://n982sx.com
>
> Sent from my iPad
>
> On Sep 27, 2011, at 3:27 PM, Rick Lark <larkrv10@yahoo.ca
> <mailto:larkrv10@yahoo.ca>> wrote:
>
>> Hi all
>> I'm researching lighting options for my RV10 project. I've looked at
>> Aveo Leds, Aero Leds, Whelen, and Kuntzleman. The Aveo & Aero leds
>> look like great products but pricey. The Whelen products also
>> look nice but again pricey.
>> I'm leaning towards the Kuntzlemean package that has the 3 position
>> lights (led), with integrated Xe flash tubes, or a home made system
>> which, when you add all the componets up, starts to approach the
>> Kuntzleman price of $620. The homemade system also carries a posible
>> issue with the LED position lights not having the proper 110/140
>> degree beams.
>> My goal is to have red, green and white led position lights, and 3
>> strobes with at least the wing tips strobes synchronized.
>> Anyone have an opinion on Kuntzlemman products? Sounds like they've
>> been arounf for about 20 years, but I know nothing about them.
>> All opinions welcomed.
>> Rick
>> #40956
>> Southampton, Ont
>>
>> *
>>
>>
>> *
> *
>
>
> *
Message 7
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| Subject: | Re: Position Lights/Strobes |
Kelly,
Yes, I got my lists mixed up. I thought I was responding to a fellow Sonex builder
on a Sonex list. The lights I highlighted are not for an RV 10. I am very
happy with Aveo as a user of one of their products for what that is worth.
I promise to pay closer attention next time.
Bob Meyers
Flying my Sonex N982SX - Building log at http://n982sx.com
Sent from my iPad
On Sep 27, 2011, at 10:43 PM, Kelly McMullen <kellym@aviating.com> wrote:
>
> The same product is $396 from Spruce. Just depends on where you are for shipping
and which vendor you prefer.
> However, they are not a good choice for the RV-10 which has enclosed wingtips.
Aveo does offer an embedded and more powerful version for about double the
money.
>
> On 9/27/2011 2:22 PM, Bob Meyers wrote:
>> I got the Aveoflash Powerburst and am very happy with them. They are only $400
for the pair at Wicks.
>>
>> http://www.wicksaircraft.com/catalog/product_cat.php/subid=12541/index.html
>>
>> Bob Meyers
>>
>> Flying my Sonex N982SX - Building log at http://n982sx.com
>>
>> Sent from my iPad
>>
>> On Sep 27, 2011, at 3:27 PM, Rick Lark <larkrv10@yahoo.ca <mailto:larkrv10@yahoo.ca>> wrote:
>>
>>> Hi all
>>> I'm researching lighting options for my RV10 project. I've looked at Aveo
Leds, Aero Leds, Whelen, and Kuntzleman. The Aveo & Aero leds look like great
products but pricey. The Whelen products also look nice but again pricey.
>>> I'm leaning towards the Kuntzlemean package that has the 3 position lights
(led), with integrated Xe flash tubes, or a home made system which, when you add
all the componets up, starts to approach the Kuntzleman price of $620. The
homemade system also carries a posible issue with the LED position lights not
having the proper 110/140 degree beams.
>>> My goal is to have red, green and white led position lights, and 3 strobes
with at least the wing tips strobes synchronized.
>>> Anyone have an opinion on Kuntzlemman products? Sounds like they've been arounf
for about 20 years, but I know nothing about them.
>>> All opinions welcomed.
>>> Rick
>>> #40956
>>> Southampton, Ont
>>>
>>> *
>>>
>>>
>>> *
>> *
>>
>>
>> *
>
>
>
>
>
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