Today's Message Index:
----------------------
1. 09:36 AM - Re: Ground Block (Robert L. Nuckolls, III)
2. 09:36 AM - Re: Ground Block (Robert L. Nuckolls, III)
3. 09:45 AM - Figure Z-11 & Z-24 (11/01) (don522@webtv.net (Don McCallister))
4. 09:48 AM - Fuse reccomendation (Sam Hoskins)
5. 10:09 AM - Re: My Web Site Finally (HCRV6@aol.com)
6. 10:16 AM - Re: My Web Site Finally (Ageless Wings)
7. 11:00 AM - Re: Fuse reccomendation (Robert L. Nuckolls, III)
8. 02:18 PM - MicroSwitch vs. Carling Differences (Robert L. Nuckolls, III)
9. 02:33 PM - Re: Fuse reccomendation (Sam Hoskins)
10. 04:15 PM - Re: My Web Site Finally (CBFLESHREN@aol.com)
Message 1
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| Subject: | Re: Ground Block |
--> AeroElectric-List message posted by: "Robert L. Nuckolls, III" <bob.nuckolls@cox.net>
At 01:08 PM 2/8/2003 -0700, you wrote:
>--> AeroElectric-List message posted by: "Jim Pack" <jpack@igs3.com>
>
>What benefit does this offer? Is it corrosion, or is it interference with
>other electrical stuff, or what?
>
>- Jim
>
> > The idea was that all cranking currents would be carried by
> > no part of the airframe or any components that held it together.
This is but one of many building blocks that make up
the design goal for a quiet, maximum performance electrical
system. When airplanes first got batteries and starters,
few, if any, of these building blocks were perceived or
even necessary. Nowadays, most are understood but application
on certified iron is sporadic . . . oft shoved aside
by traditional, political or regulatory decision making
processes.
The quietest airplanes minimize use of airframe to
carry power or signal currents on the airframe for
either potential victims or potential antagonists
but particularly potential victims.
The single-point ground system was a no-brainer feature
of the composite airplane . . . and many have been constructed
over the years with noise free systems. Metal airplanes
can derive equal benefit by adopting similar philosophies.
Ground loop coupling of effects between systems simply
cannot occur when there are no loops (multiple grounds
on airframes that carry currents for multiple systems).
Will your airplane suffer the indignities of a trashy
system for having pushed one design goal aside? Probably
not. Will you suffer some drop in performance? Probably
none that you will perceive . . . many airplanes we've
grown up with over the years have electrical performance
issues that can only be calculated and/or measured. As
humans pushing buttons and twisting knobs, our ability
to resolve variability in system performance is extremely
limited.
Just try to be sensitive to the fact that brushing
COMBINATIONS of building blocks aside can digress
your system back toward what we've been told
(by both manufacturers and regulators) are "the
best airplanes we know how to build." I hope our
associations here and elsewhere in the OBAM aircraft
community have exposed what a sad joke that is.
Bob . . .
Message 2
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| Subject: | Re: Ground Block |
--> AeroElectric-List message posted by: "Robert L. Nuckolls, III" <bob.nuckolls@cox.net>
At 01:07 PM 2/8/2003 -0700, you wrote:
>--> AeroElectric-List message posted by: "Jim Pack" <jpack@igs3.com>
>
>So, you feel it is worth a hole in the firewall to connect the two grounds?
>
>- Jim
That's the way it was designed . . .
Message 3
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| Subject: | Figure Z-11 & Z-24 (11/01) |
--> AeroElectric-List message posted by: don522@webtv.net (Don McCallister)
Single Battery, Single 40A Denso internal regulator and Looking at
Z-11, we are not using " Main Battery Bus" and there is a 16AWG wire
from the "Ess. Bus Alternate Feed" to the Battery Contactor. Should
there be a fuse (in Line) ??? Also, it appears for this architecture
that we are limited to 3-4 amps on the Essential Bus, however I note a
Nav/Com (7A) along with the other nine (3A) ?????? Where would the
ammeter and shunt be wired in????
All comments appreciated and no thread intended here.
Do not archive.
Don McC.....RV-6A
Astronaut Kent Rominger Airport
Message 4
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| Subject: | Fuse reccomendation |
--> AeroElectric-List message posted by: "Sam Hoskins" <shoskins@globaleyes.net>
I am retrofitting my Q-200 with a B&C 200G alternator. Their drawing calls for
a 15a fuse on the engine side of the firewall.
What would be a recommended fuse and holder for this application? I didn't find
anything in the AEC catalog, maybe I'm just not looking in the right place.
The catalog said the ATC fuseblock was not reccomended for continous loads more
than 7a.
Sam Hoskins
Murphysboro, IL
Quickie Q-200
Flying since '86 with over 1,200 hours.
http://home.globaleyes.net/shoskins/page1.htm
Message 5
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| Subject: | Re: My Web Site Finally |
--> AeroElectric-List message posted by: HCRV6@aol.com
In a message dated 2/8/03 2:24:24 PM Pacific Standard Time,
emjones@charter.net writes:
<< www.PerihelionDesign.com >>
Hi Eric, I tried the website this morning and for some reason none of the
links respond, plus there are no illustrations except for the picture of the
Glastar at the top but it looks as if you intended there to be some. I am
using a PC with Microsoft Office 97 on an old IBM notebook so it may be my
equipment.
Harry Crosby
Pleasanton, California
RV-6, starting firewall forward
Message 6
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| Subject: | My Web Site Finally |
--> AeroElectric-List message posted by: "Ageless Wings" <harley@agelesswings.com>
Harry....
The pictures are quite large...he didn't reduce them to a manageable size.
So, if you are trying to load it with a dialup modem, they may take quite
awhile. I have a DSL line, and I thought there was a mistake at first,
too...but eventually they all loaded....the links followed.
Harley
>> -----Original Message-----
>> From: owner-aeroelectric-list-server@matronics.com
>> [mailto:owner-aeroelectric-list-server@matronics.com]On Behalf Of
>> HCRV6@aol.com
>> Sent: Sunday, February 09, 2003 1:09 PM
>> To: aeroelectric-list@matronics.com
>> Subject: Re: AeroElectric-List: My Web Site Finally
>>
>>
>> --> AeroElectric-List message posted by: HCRV6@aol.com
>>
>> In a message dated 2/8/03 2:24:24 PM Pacific Standard Time,
>> emjones@charter.net writes:
>>
>> << www.PerihelionDesign.com >>
>>
>> Hi Eric, I tried the website this morning and for some reason
>> none of the
>> links respond, plus there are no illustrations except for the
>> picture of the
>> Glastar at the top but it looks as if you intended there to be
>> some. I am
>> using a PC with Microsoft Office 97 on an old IBM notebook so it
>> may be my
>> equipment.
>>
>> Harry Crosby
>> Pleasanton, California
>> RV-6, starting firewall forward
>>
>>
>>
>>
>>
>>
>>
Message 7
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| Subject: | Re: Fuse reccomendation |
--> AeroElectric-List message posted by: "Robert L. Nuckolls, III" <bob.nuckolls@cox.net>
At 11:48 AM 2/9/2003 -0600, you wrote:
>--> AeroElectric-List message posted by: "Sam Hoskins"
><shoskins@globaleyes.net>
>
>I am retrofitting my Q-200 with a B&C 200G alternator. Their drawing
>calls for a 15a fuse on the engine side of the firewall.
>
>What would be a recommended fuse and holder for this application? I
>didn't find anything in the AEC catalog, maybe I'm just not looking in the
>right place. The catalog said the ATC fuseblock was not reccomended for
>continous loads more than 7a.
The fuse blocks are rated by the manufacturer at up to 30A
per slot. For aircraft use we've recommended de-rating to 15A
per slot . . . and then only for loads like pitot heat and
klieg-lights you may have bolted on for night landings.
The single ATC fuse holder at
http://www.aeroelectric.com/Catalog/ckrtprot/ckrtprot.html#ifh-2
is also RATED for much more . . . about 20A as I recall.
You could use this with a 15A fuse in it for the 200G
alternator.
If it were my airplane, I'd wire per figure Z-16 of Appendix
Z and use a 20AWG fusible link on the end of a 16AWG or
14AWG feeder . . . the feeder/link combination shown on
Figure Z-16 is appropriate for the larger, Rotax alternator.
Bob . . .
Message 8
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| Subject: | MicroSwitch vs. Carling Differences |
--> AeroElectric-List message posted by: "Robert L. Nuckolls, III" <bob.nuckolls@cox.net>
Over the years, AeroElectric Connection drawings have
depicted a mixture of progressive transfer switches by
Honeywell-MicroSwitch and Carling (who makes the S700-Series
switches stocked at B&C. Until all the documentation can be
updated to resolve differences between the two brands
see the benchmark document at:
http://www.aeroelectric.com/articles/Carling_Micro/Carling_Micro.pdf
These differences have left a few pitfalls for generating new
drawings from the archives of old drawings. One has to be careful
lest artifacts of both switch brands get intermixed.
Just such a snafu occurred when instructions for the LV_Warn/ABMM
modules were crafted. For those of you who have received LV_Warn
Modules from the first production batch, B-revision instructions
have been posted at:
http://www.aeroelectric.com/Catalog/AEC/9005/9005-701B.pdf
The second production batch is being finished now and will be
shipped tomorrow with Revision B instructions.
Bob . . .
|-------------------------------------------------------|
| The man who does not read good books has no advantage |
| over the man who cannot read them. |
| - Mark Twain |
|-------------------------------------------------------|
Message 9
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| Subject: | Re: Fuse reccomendation |
--> AeroElectric-List message posted by: "Sam Hoskins" <shoskins@globaleyes.net>
Ok, I see that. I was already considering a fuselink, but some or your
writings (page 10-4)seemed to discourage them in the current ranges we are
talking about here. Re-reading it, I see you addressed PM alternators.
While I'm looking at Z-16 - what is the purpose of the 22AWG fuselink in
series with the 5a breaker? Isn't that redundent redundent?
Sam
----- Original Message -----
From: "Robert L. Nuckolls, III" <bob.nuckolls@cox.net>
Subject: Re: AeroElectric-List: Fuse reccomendation
> --> AeroElectric-List message posted by: "Robert L. Nuckolls, III"
<bob.nuckolls@cox.net>
>
> At 11:48 AM 2/9/2003 -0600, you wrote:
> >--> AeroElectric-List message posted by: "Sam Hoskins"
> ><shoskins@globaleyes.net>
> >
> >I am retrofitting my Q-200 with a B&C 200G alternator. Their drawing
> >calls for a 15a fuse on the engine side of the firewall.
> >
> >What would be a recommended fuse and holder for this application? I
> >didn't find anything in the AEC catalog, maybe I'm just not looking in
the
> >right place. The catalog said the ATC fuseblock was not reccomended for
> >continous loads more than 7a.
>
> The fuse blocks are rated by the manufacturer at up to 30A
> per slot. For aircraft use we've recommended de-rating to 15A
> per slot . . . and then only for loads like pitot heat and
> klieg-lights you may have bolted on for night landings.
>
> The single ATC fuse holder at
>
> http://www.aeroelectric.com/Catalog/ckrtprot/ckrtprot.html#ifh-2
>
> is also RATED for much more . . . about 20A as I recall.
> You could use this with a 15A fuse in it for the 200G
> alternator.
>
> If it were my airplane, I'd wire per figure Z-16 of Appendix
> Z and use a 20AWG fusible link on the end of a 16AWG or
> 14AWG feeder . . . the feeder/link combination shown on
> Figure Z-16 is appropriate for the larger, Rotax alternator.
>
> Bob . . .
>
>
Message 10
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| Subject: | Re: My Web Site Finally |
--> AeroElectric-List message posted by: CBFLESHREN@aol.com
In a message dated 2/8/2003 5:24:24 PM Eastern Standard Time,
emjones@charter.net writes:
> Please check out and save the link for:
>
> www.PerihelionDesign.com
>
> All sorts of aero-related stuff for sale and in development. This site is
> best viewed with IE and a PC. Macs
> and Netscape seem to be a problem. I'm working on it.
>
> I made this wesite with a bunch of Webwizards from Excel and MSWord, so who
> knows?
>
> Regards,
> Eric M. Jones
>
Eric, I accessed your interesting site & everything seems fine, all
pics open & w/ respect to size are great. The only odd thing I have is
horizontal scroll range that accesses nothing . I don't appear to need the
horizontal scroll bar at all when I am viewing the window maximized, yet I
can scroll about 25% horizontally beyond the "page" that shows nothing. I am
on a cable modem. Chris
Do Not Archive
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