Today's Message Index:
----------------------
1. 04:01 AM - Re: AeroElectric-List Digest: 11 Msgs - 06/27/05 (Mark Taylor)
2. 12:58 PM - Alternator Belt tension (Richard Reynolds)
3. 01:26 PM - wig wag suitability (Erich_Weaver@URSCorp.com)
4. 01:54 PM - Re: wig wag suitability (James H Nelson)
5. 02:21 PM - Re: wig wag suitability (Hinde, Frank George (Corvallis))
6. 03:01 PM - Re: wig wag suitability (LarryRobertHelming)
7. 06:25 PM - SD-8 as a less-than-full load backup (Tim Olson)
8. 08:13 PM - Re: SD-8 as a less-than-full load backup (Bryan Hooks)
9. 08:33 PM - Re: wig wag suitability (rv-9a-online)
10. 08:46 PM - Re: SD-8 as a less-than-full load backup (Tim Olson)
11. 09:06 PM - Decomissioning TIS Sites??? (Mark)
12. 09:17 PM - Re: Decomissioning TIS Sites??? (Mark)
Message 1
| INDEX | Back to Main INDEX |
| NEXT | Skip to NEXT Message |
| LIST | Reply to LIST Regarding this Message |
| SENDER | Reply to SENDER Regarding this Message |
|
| Subject: | RE: AeroElectric-List Digest: 11 Msgs - 06/27/05 |
--> AeroElectric-List message posted by: "Mark Taylor" <mtaylo17@msn.com>
Bob,
Aart and I have been in discussion about how to do this for some time. I'm
interested to see what you come up with since I'm going down a similar road
to Aart. However, I will have IFR capability, so I was going for the two
alternator/one battery Z-12 set-up.
I hope you can help Aart with is dilemma, and in doing so, you might be
helping me too!
Thanks,
Mark. RV7. Finishing.
www.4sierratango.com
>Time: 08:05:44 AM PST US
>From: "Robert L. Nuckolls, III" <nuckollsr@cox.net>
>Subject: Re: AeroElectric-List: Fadec installation, what architecture?
>
>--> AeroElectric-List message posted by: "Robert L. Nuckolls, III"
><nuckollsr@cox.net>
>
>At 10:23 AM 6/27/2005 +0200, you wrote:
>
> >--> AeroElectric-List message posted by: "Aart van't Veld"
> ><avtveld@tiscali.nl>
> >
> >I would really appreciate feedback from you guys on the
>wiring/architecture
> >of my Fadec system. The basics of my installation and wiring situation
>are:
> >
> >- All electric airplane
> >
> >- Flying an experimental in Europe. Therefore no IFR/IMC, no night VFR.
> >
> >- 60A B&C main alternator
> >
> >- One main battery(Odyssey PC680)
> >
> >- One small backup battery, comes with the Fadec installation and is
> >dedicated to power the backup Fadec #2 bus only (Aerosance states that it
>is
> >more than enough for one hour of powering the Fadec system. The Fadec
>system
> >draws 5,5 amps)
> >
> >- One SD8 backup alternator
>
> Aart,
>
> I'm working on a response to this . . . but it's going to take
> some time. You raise some good questions for which I don't want
> to hip-shoot an answer.
>
> Bob . . .
Message 2
| INDEX | Back to Main INDEX |
| PREVIOUS | Skip to PREVIOUS Message |
| NEXT | Skip to NEXT Message |
| LIST | Reply to LIST Regarding this Message |
| SENDER | Reply to SENDER Regarding this Message |
|
Email RV <rv-list@matronics.com>
| Subject: | Alternator Belt tension |
--> AeroElectric-List message posted by: Richard Reynolds <rvreynolds@macs.net>
In perusing my Lycoming installation drawing for the O-360-A series
(Lycoming Drawing no 04C 63086) the other day, I saw the following note:
Alternator Belt Tension Requirements:
New Belt - mid belt span deflection of .31 (5/16) inches with 14
pounds load
Used Belt - mid belt span deflection of .31 (5/16) inches with 10
pounds load
OR
For a 3/8 inch wide belt:
New Belt - 12 ft-lb to slip the belt at the alternator pulley
Used Belt - 8 ft-lb to slip the belt at the alternator pulley
The torque/slip method seems to be easy to do.
Richard Reynolds
Norfolk, VA
RV-6A flying
Message 3
| INDEX | Back to Main INDEX |
| PREVIOUS | Skip to PREVIOUS Message |
| NEXT | Skip to NEXT Message |
| LIST | Reply to LIST Regarding this Message |
| SENDER | Reply to SENDER Regarding this Message |
|
| Subject: | wig wag suitability |
06/28/2005 04:21:16 PM
--> AeroElectric-List message posted by: Erich_Weaver@URSCorp.com
Greetings
Im a list newby working on an RV-7A that I inherited mid-stream from
another builder. I am currently trying to get up to speed on electrical
systems and planning the panel. Recently purchased and read Aero Electric
Connection book cover to cover, and am making my way through a second time
to help absorb it all. Great stuff.
Anywho, Im not really planning on doing night flight, but would like to be
as visible as possible in the daytime, especially near airports. For this
purpose, I am thinking I would go ahead and have standard Vans (Whelen?)
strobe/position lights in each wingtip, but was also considering installing
wingtip landing lights with the wig wag function. Does this make sense
for what I want to accomplish? Is the wig wag good for daytime visibility
( at least from the front)? Is it complete overkill with the additional
strobe? Will a landing light setup like that shown on the creative air web
site
(http://www.creativair.com/cva/product_info.php?cPath=21&products_id=42)
with a wig wag function be a good fit for me? Give it to me
straight...bluntness works well with me.
thanks
Erich Weaver
Message 4
| INDEX | Back to Main INDEX |
| PREVIOUS | Skip to PREVIOUS Message |
| NEXT | Skip to NEXT Message |
| LIST | Reply to LIST Regarding this Message |
| SENDER | Reply to SENDER Regarding this Message |
|
| Subject: | Re: wig wag suitability |
--> AeroElectric-List message posted by: James H Nelson <rv9jim@juno.com>
Erich,
When in a busy day time environment, the strobes are not seen.
The wig wag will get the attention of aircraft whereas the strobes will
not.
Jim Nelson
RV9-A
St Petersburg Fl.
Message 5
| INDEX | Back to Main INDEX |
| PREVIOUS | Skip to PREVIOUS Message |
| NEXT | Skip to NEXT Message |
| LIST | Reply to LIST Regarding this Message |
| SENDER | Reply to SENDER Regarding this Message |
|
| Subject: | wig wag suitability |
--> AeroElectric-List message posted by: "Hinde, Frank George (Corvallis)" <frank.hinde@hp.com>
For daytime work my personal experience is strobes are not worth the
extra weight/cost.
I can always see landing lights in the pattern and if they flash they
are surprisingly noticable.
Besides which a wig-wag relay is about $30 whereas strobes are much
more.
FWIW
Frank
-----Original Message-----
From: owner-aeroelectric-list-server@matronics.com
[mailto:owner-aeroelectric-list-server@matronics.com] On Behalf Of
Erich_Weaver@URSCorp.com
Subject: AeroElectric-List: wig wag suitability
--> AeroElectric-List message posted by: Erich_Weaver@URSCorp.com
Greetings
Im a list newby working on an RV-7A that I inherited mid-stream from
another builder. I am currently trying to get up to speed on electrical
systems and planning the panel. Recently purchased and read Aero
Electric Connection book cover to cover, and am making my way through a
second time to help absorb it all. Great stuff.
Anywho, Im not really planning on doing night flight, but would like to
be as visible as possible in the daytime, especially near airports. For
this purpose, I am thinking I would go ahead and have standard Vans
(Whelen?) strobe/position lights in each wingtip, but was also
considering installing wingtip landing lights with the wig wag
function. Does this make sense for what I want to accomplish? Is the
wig wag good for daytime visibility ( at least from the front)? Is it
complete overkill with the additional strobe? Will a landing light
setup like that shown on the creative air web site
(http://www.creativair.com/cva/product_info.php?cPath=21&products_id=42)
with a wig wag function be a good fit for me? Give it to me
straight...bluntness works well with me.
thanks
Erich Weaver
Message 6
| INDEX | Back to Main INDEX |
| PREVIOUS | Skip to PREVIOUS Message |
| NEXT | Skip to NEXT Message |
| LIST | Reply to LIST Regarding this Message |
| SENDER | Reply to SENDER Regarding this Message |
|
| Subject: | Re: wig wag suitability |
--> AeroElectric-List message posted by: "LarryRobertHelming" <lhelming@sigecom.net>
> The wig wag will get the attention of aircraft whereas the strobes will
> not.
This maybe be true if you are going right at them and they are looking at
you. If you are intersecting at an angle, the strobe has better chance of
being seen. Better to have both lights and both ON. I do not use my
landing lights normally unless I am inbound for a landing or pattern work.
Indiana Larry, RV7 Tip Up It Flies
"The American Republic will endure until the day Congress discovers
that it can bribe the public with the public's own money."
Alexis de Toqueville
----- Original Message -----
From: "James H Nelson" <rv9jim@juno.com>
Subject: Re: AeroElectric-List: wig wag suitability
> --> AeroElectric-List message posted by: James H Nelson <rv9jim@juno.com>
>
> Erich,
> When in a busy day time environment, the strobes are not seen.
> The wig wag will get the attention of aircraft whereas the strobes will
> not.
>
> Jim Nelson
> RV9-A
> St Petersburg Fl.
>
>
>
Message 7
| INDEX | Back to Main INDEX |
| PREVIOUS | Skip to PREVIOUS Message |
| NEXT | Skip to NEXT Message |
| LIST | Reply to LIST Regarding this Message |
| SENDER | Reply to SENDER Regarding this Message |
|
| Subject: | SD-8 as a less-than-full load backup |
--> AeroElectric-List message posted by: Tim Olson <Tim@MyRV10.com>
I'm going to make the decision on which alternator and base plan to
go with very soon, but have a simple question for those in-the-know.
Engine is an IO-540.
I'm leaning towards doing the B&C Alternator with OV protection as
my main alternator. Looking at using Z-13/8 for my base plan.
I plan to add a small 12Ah or less battery into the scheme, for
2 purposes. #1, during engine start, I'll have my EIS turned on,
and operating on this separate battery, possibly along with my
Chelton that has weather on it from doing my flight planning.
#2, I'm using lightspeed ignition, and by keeping it on it's
own battery during start, I have no worries about any kickback
caused by the high draw of the lightweight starter. One additional
benefit is that as long as I separate this battery from the
circuit if I ever have a failure, I can keep my Lightspeed
ignition running on a separate circuit, even if I drew my
main battery down to nothing.
I'd go with P-Mags, but there aren't 6-cyl versions out yet.
Some day, when they're out, and proven, I'll yank off my
mag and lightspeed and put those on to simplify things....maybe.
I haven't got all of the normal operating currents figured out
for my full-panel, and minimum-draw configuration, but...
<now the question>
Let's estimate that my minimal-draw needs run in the 8-12A range,
but I'm only using the SD-8 backup alternator. I know this
isn't ideal, but I'm under the assumption that this just means
that if I require 12A, and I have the SD-8, my battery will
begin to discharge, but only at a 4A rate. Is this correct?
The way I see it is, I don't *really* need the SD-8, because
I have an attitude indicator on it's own battery, and the
main battery or that extra battery could power my EFIS and a
Nav/Com for enough time to get me on the ground...I'm not
interested in staying in the air for 4 hours with a dead
main alternator. But, if my assumption about the draw on the
SD-8 is true, adding the SD-8 is cheap enough to give just
a little more juice so that I can worry less about my load
requirements, and throw in my Autopilot+servos, an interior
light, or small things like that, without causing a major
concern.
I'd go with Z-14, but that just seems like overkill for me,
and it costs a lot more. Besides that, there isn't really
a custom Z-diagram that describes using a small alternate
battery for only a couple loads, so modifying Z-13/8 seems
the reasonable thing.
Comments appreciated, and thanks in advance!
PS: I'd buy my alternator right now, but does anyone know if
there are OSH specials from B&C that would make me delay until
that time? I don't need the stuff now, but would like to
just bury the hatchet and commit so I can quit agonizing over
all these choices.
Tim
--
Tim Olson -- RV-10 #170
Message 8
| INDEX | Back to Main INDEX |
| PREVIOUS | Skip to PREVIOUS Message |
| NEXT | Skip to NEXT Message |
| LIST | Reply to LIST Regarding this Message |
| SENDER | Reply to SENDER Regarding this Message |
|
| Subject: | SD-8 as a less-than-full load backup |
--> AeroElectric-List message posted by: "Bryan Hooks" <bryanhooks@comcast.net>
Tim Olson said "... Besides that, there isn't really
a custom Z-diagram that describes using a small alternate
battery for only a couple loads, so modifying Z-13/8 seems
the reasonable thing."
I've been trying to decide how to handle this very issue myself. With a
GRT screen on (and EIS for engine monitoring)during start, I believe
that AT LEAST the GRT will reset itself due to voltage drop. Now I know
we should all require our gadget designers to meet the standards set
forth in DO-160 (I think that's the one), and maybe Grand Rapids does -
but I still feel the need to have them on a separate battery during
engine start if for no other reason than to baby them ($$$$).
So, what's the simplest way to add a small secondary battery to the dual
alternator single battery schematic without all the fancy ($$$) stuff.
I just want to be able to use the secondary battery during start for a
couple of key loads and ensure that it is charged by the alternators
during flight.
Bryan Hooks
RV-7A, slowbuild
Finish kit came today
Knoxville, TN
Message 9
| INDEX | Back to Main INDEX |
| PREVIOUS | Skip to PREVIOUS Message |
| NEXT | Skip to NEXT Message |
| LIST | Reply to LIST Regarding this Message |
| SENDER | Reply to SENDER Regarding this Message |
|
| Subject: | Re: wig wag suitability |
--> AeroElectric-List message posted by: rv-9a-online <rv-9a-online@telus.net>
Folks, a landing light saved my life.
I was cruising at 3500 feet eastbound, and I notice a bright light dead
ahead. By the time I resolved the wings, I had to take evasive action--
tight right bank, a look out the window at the other pilot.... who
didn't see me.
The only thing right that he did was fly with his landing light on.
For fast approaching traffic, the few seconds of extra warning is a life
saver. Fly with you lights on, pulselights, wig-wags, strobes, whatever.
I alos bought a Monroy ATD-300 traffic monitor. Great device.
Vern Little RV-9A
LarryRobertHelming wrote:
>--> AeroElectric-List message posted by: "LarryRobertHelming" <lhelming@sigecom.net>
>
>
>
>>The wig wag will get the attention of aircraft whereas the strobes will
>>not.
>>
>>
>
>This maybe be true if you are going right at them and they are looking at
>you. If you are intersecting at an angle, the strobe has better chance of
>being seen. Better to have both lights and both ON. I do not use my
>landing lights normally unless I am inbound for a landing or pattern work.
>
>Indiana Larry, RV7 Tip Up It Flies
>
>"The American Republic will endure until the day Congress discovers
> that it can bribe the public with the public's own money."
>
>Alexis de Toqueville
>----- Original Message -----
>From: "James H Nelson" <rv9jim@juno.com>
>To: <aeroelectric-list@matronics.com>
>Subject: Re: AeroElectric-List: wig wag suitability
>
>
>
>
>>--> AeroElectric-List message posted by: James H Nelson <rv9jim@juno.com>
>>
>>Erich,
>> When in a busy day time environment, the strobes are not seen.
>>The wig wag will get the attention of aircraft whereas the strobes will
>>not.
>>
>>Jim Nelson
>>RV9-A
>>St Petersburg Fl.
>>
>>
>>
>>
>>
>
>
>
>
Message 10
| INDEX | Back to Main INDEX |
| PREVIOUS | Skip to PREVIOUS Message |
| NEXT | Skip to NEXT Message |
| LIST | Reply to LIST Regarding this Message |
| SENDER | Reply to SENDER Regarding this Message |
|
| Subject: | Re: SD-8 as a less-than-full load backup |
--> AeroElectric-List message posted by: Tim Olson <Tim@MyRV10.com>
I also wondered if it was practical, since you're not cross-powering
anything from that small battery to your main bus if it would be
enough just to join the 2 battery circuits with just a switch
from the small battery to your main bus that you could turn on
after engine start just to keep the small battery charged.
Seems simple enough. Just want to hear any down sides.
Tim
Tim Olson -- RV-10 #170
Current project: Fuselage
DO NOT ARCHIVE
Bryan Hooks wrote:
> --> AeroElectric-List message posted by: "Bryan Hooks" <bryanhooks@comcast.net>
>
> Tim Olson said "... Besides that, there isn't really
> a custom Z-diagram that describes using a small alternate
> battery for only a couple loads, so modifying Z-13/8 seems
> the reasonable thing."
>
> I've been trying to decide how to handle this very issue myself. With a
> GRT screen on (and EIS for engine monitoring)during start, I believe
> that AT LEAST the GRT will reset itself due to voltage drop. Now I know
> we should all require our gadget designers to meet the standards set
> forth in DO-160 (I think that's the one), and maybe Grand Rapids does -
> but I still feel the need to have them on a separate battery during
> engine start if for no other reason than to baby them ($$$$).
>
> So, what's the simplest way to add a small secondary battery to the dual
> alternator single battery schematic without all the fancy ($$$) stuff.
> I just want to be able to use the secondary battery during start for a
> couple of key loads and ensure that it is charged by the alternators
> during flight.
>
> Bryan Hooks
> RV-7A, slowbuild
> Finish kit came today
> Knoxville, TN
>
Message 11
| INDEX | Back to Main INDEX |
| PREVIOUS | Skip to PREVIOUS Message |
| NEXT | Skip to NEXT Message |
| LIST | Reply to LIST Regarding this Message |
| SENDER | Reply to SENDER Regarding this Message |
|
| Subject: | Decomissioning TIS Sites??? |
--> AeroElectric-List message posted by: "Mark" <2eyedocs@comcast.net>
It looks lke the powers that be don't think the TIS sites are worth expanding much
less keeping. Hope this isn't a sign of things to come :-(
http://www.pennavionics.com/TIS_ISSUES.html
Mark
Message 12
| INDEX | Back to Main INDEX |
| PREVIOUS | Skip to PREVIOUS Message |
| NEXT | Skip to NEXT Message |
| LIST | Reply to LIST Regarding this Message |
| SENDER | Reply to SENDER Regarding this Message |
|
| Subject: | Re: Decomissioning TIS Sites??? |
--> AeroElectric-List message posted by: "Mark" <2eyedocs@comcast.net>
Does anyone know the name of THE avionics books for decision making on wiring,
alternator choice, etc. Can't seem to find it in the archives.
Thanks,
Mark
Other Matronics Email List Services
These Email List Services are sponsored solely by Matronics and through the generous Contributions of its members.
-- Please support this service by making your Contribution today! --
|