Today's Message Index:
----------------------
1. 06:55 PM - Re: RV10 primary elec sys wiring (Robert L. Nuckolls, III)
2. 09:43 PM - Re: Smoker GFCI question (Art Zemon)
3. 10:34 PM - Re: Smoker GFCI question (ashleysc@broadstripe.net)
4. 10:50 PM - Re: Re: DIY LOC/VOR_G.S. Antenna (Steve Stearns)
Message 1
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| Subject: | Re: RV10 primary elec sys wiring |
At 09:57 AM 7/23/2020, you wrote:
Good day Dear Mr.Nuckolls,
First, i really happy that i've met your book and web site with
plenty of extra useful information.I am aircraft maintenance engineer
(mostly Boeing type rated), have practical and theoretical skills.
but realized that need some more theoretical researches for better
elec system knowledge.
Those fundamentals will serve you well in your
new aviation endeavors. Your sense of craftsmanship
and knowledge of 'how the other guys do it' will
be useful.
Recently friend of mine asked me to help with his RV-10 electrical
and avionics hookup. Most of works are done except all wiring work. I
spent many hours doing research and stuck...we have perhaps unusual
config with one regular battery(RG-25XC)with Batteryminder charging
kit BM-AIK2A, just one primary alternator Plane Power 99-1012 with
built-in voltage regulator (unfortunately) and small cmart backup
battery TCW IBBA-12v-6AH. Ignition - Champion slick magnetos (6393
and 6350) , lefthand one with SS1001 booster.
You don't mention how this airplane will be used.
Day VFR, Day/Nite VFR, 'hard' IFR, extended flight
over unfriendly terrain? What avionics are anticipated?
Which devices will exploit the back-up battery?
Despite I am professional avionic I am really stuck and frustrated in myself...
You've come to the right place. I've taken the liberty
of signing you up as a participant on the AeroElectric-List.
We are a 'members only' consortium of aviation enthusiasts with
broad range of experience and skills. We strive for elegant
solutions based on good science.
When you receive the invitation to join us, just respond in
the affirmative and you'll be 'plugged in' to one of the
most comprehensive electrical/avionics communities on the
'net'.
Could you please, advise where can i find help with backbone elec system
architecture and etc...guys want to fly in couple of months))))
We're pleased to help. Tell us more about the project.
At firsts blush, your architecture requirements may
be exceedingly simple. Stand alone magnetos. Simple
one battery/one alternator configuration not unlike
hundreds of thousands of type certificated aircraft
that have flown successfully for a century. The
greatest difference will be the lack of an 'avionics
bus' and associated master switch. That concept was
hatched with poor understanding of then-brand-new
solid state avionics. The value of the avionics master
was limited from the beginning then and has no
value today.
Based on what we know now, your shared details may
prompt further suggestions. I've posted a 'first
pass on an architecture we're evolving here
on the AeroElectric-List. It shows an endurance
bus (common to single alternator designs), battery
bus and a brown-out booster. You may not need
any of these things we'll help you figure it out.
See: https://tinyurl.com/y6ku7lbh
Thank you again for your great work and support of aviation community!
You're most welcome my friend . . . it's what we do
here.
Bob . . .
Message 2
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| Subject: | Re: Smoker GFCI question |
Good questions, Charlie. I tried the following, all without tripping a GFCI:
- Plugged a 1500W induction cooktop into the patio GFCI. (It has a
2-wire plug. I don't have anything with a 3-wire plug that is anywhere
near the 750W smoker. Even my shop vac is 2-wire.)
- Plugged the smoker into a 3-wire extension cord and plugged that into
a GFCI in the kitchen.
- Plugged the smoker into the same 3-wire extension cord and plugged
that into the GFCI on the patio.
This is so weird.
-- Art Z.
On Fri, Jul 24, 2020 at 10:23 PM Charlie England <ceengland7@gmail.com>
wrote:
> ceengland7@gmail.com>
>
> On 7/24/2020 8:07 PM, Art Zemon wrote:
> > Non aviation question for y'all: I just installed a new outlet on my
> > patio, so I can use my electric smoker and an electric fan without an
> > extension cord. The fan works great. The smoker is ok when first
> > plugged in and turned on so it connects to the WiFi. But a few minutes
> > after turning the smoker's heating element in, the GFCI trips.
> >
> > It's a Char-Broil electric smoker, 750W. It's a new, weatherproof 15A
> > GFCI.
> >
> > Thoughts?
> >
> > -- Art Z.
> >
> > Sent from my phone. Please excuse brevity and bizarre typos.
> My 1st troubleshooting step is 'elimination'.
>
> Have you tried a different device with roughly the same power
> consumption (maybe a small electric space heater) to see if the breaker
> still trips?
>
> Have you tried the smoker on a different GFCI circuit?
>
> Charlie
--
https://CheerfulCurmudgeon.com/
*If I am not for myself, who will be for me? If I am only for myself, what
am I? If not now, when?*
Message 3
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| Subject: | Re: Smoker GFCI question |
Hi Art Z;
There's a good possibility that it's the circuit breaker that is causing the problem.
Newer style circuit breakers are very sensitive to arcing, even very insignificant
arcing such as caused by a switch or thermostat. My neighbor brought
over a heater that he used in a fruit dryer. It was tripping circuits in his
new house. After taking it apart and finding nothing wrong, we plugged it in
at my home, and it ran fine. We have older circuit breakers. So he took it home,
changed one of his circuit breakers to the older style, and the problem disappeared.
Cheers! Stu..
----- Original Message -----
From: "Art Zemon" <art@zemon.name>
Sent: Friday, July 24, 2020 6:07:10 PM
Subject: AeroElectric-List: Smoker GFCI question
Non aviation question for y'all: I just installed a new outlet on my patio, so
I can use my electric smoker and an electric fan without an extension cord. The
fan works great. The smoker is ok when first plugged in and turned on so it
connects to the WiFi. But a few minutes after turning the smoker's heating element
in, the GFCI trips.
It's a Char-Broil electric smoker, 750W. It's a new, weatherproof 15A GFCI.
Thoughts?
-- Art Z.
Sent from my phone. Please excuse brevity and bizarre typos.
Message 4
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| Subject: | Re: DIY LOC/VOR_G.S. Antenna |
Bob said:
"I'm planning an experiment centered on Jim Wier's suggestion for a dual
band 121.5/406 Mhz ELT antenna."
I needed a compact 121.5/406 antenna for my Longeze. I tried a few
configurations and the attached photo shows what worked the best. It's a
shortened dipole for 121.5 in parallel with a full size 406 dipole. It's
mounted to the pilot seat back. The feed line needs to leave the
intersection roughly along the virtual ground plane (actually, splitting
the difference between the two). I have better VSWR with this
configuration than I got with a couple of different (one portable, one for
permanent mount) antennas supplied by the ELT manufacturer (purchased for
test - so if anyone wants them, I'm happy to sell them...)
Steve Stearns
O235 Longeze
Boulder / Longmont CO
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