Today's Message Index:
----------------------
1. 06:08 AM - DC generators (Wes K)
2. 06:14 AM - Re: EFIS - BMA or GRT? (marknlisa@hometel.com)
3. 07:22 AM - Re: capacitor sizing (Robert L. Nuckolls, III)
4. 07:45 AM - Re: Re: EFIS - BMA or GRT? (John W. Cox)
5. 07:50 AM - Re: EFIS - BMA or GRT? Op Tech (John Tvedte)
6. 08:34 AM - Re: Re which encoder to buy (Charlie Kuss)
7. 08:51 AM - Re: EFIS - BMA or GRT? Op Tech (RV Builder (Michael Sausen))
8. 09:47 AM - MPJA motion detector for gear up warning (Ernest Christley)
9. 09:51 AM - Auburn, CA Seminar (Sacramento) (Robert L. Nuckolls, III)
10. 10:06 AM - R/C Attitude ind. (Gary)
11. 10:06 AM - Re: DC generators (Hopperdhh@aol.com)
12. 10:15 AM - Re: DC generators (Robert L. Nuckolls, III)
13. 10:44 AM - Re: DC generators (Brian Lloyd)
14. 10:48 AM - Re: capacitor sizing (Brian Lloyd)
15. 11:01 AM - Fig. Z-32 Question (John Swartout)
16. 11:17 AM - Wiring 2 radios w/o audio panel (6440 Auto Parts)
17. 11:18 AM - Re: Tablet & Laptop PC Use in Aircraft (N395V)
18. 11:34 AM - Re: capacitor sizing (Bill Boyd)
19. 02:32 PM - Re: Wiring 2 radios w/o audio panel (Brian Lloyd)
20. 03:41 PM - Re: Wiring 2 radios w/o audio panel (6440 Auto Parts)
21. 04:18 PM - Re: Wiring 2 radios w/o audio panel (Brian Lloyd)
22. 05:06 PM - Re: R/C Attitude ind. (Carl Morgan)
23. 05:41 PM - Re: Wiring 2 radios w/o audio panel (Ed Holyoke)
24. 08:48 PM - Re: Mag switches-what size? (Steve James)
25. 08:51 PM - Re: R/C Attitude ind. (Carl Morgan)
26. 10:58 PM - Re: EFIS - BMA or GRT? Op Tech (Tim Olson)
Message 1
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--> AeroElectric-List message posted by: Wes K <wsknettl@centurytel.net>
Hello,
Can someone from yesteryear confirm that a Cessna with a 50 amp
generator, 35 amp regulator and 35 amp main generator CB will not self
destruct.
Thanks
Wes K
Message 2
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Subject: | Re: EFIS - BMA or GRT? |
--> AeroElectric-List message posted by: marknlisa@hometel.com
Compair's owner said during a press conference at OSH they won't be
using/offering OP Tech gear in any of their aircraft (they're seeking
certification for the -9 and -12) because they can't get the systems to
work.
Mark Sletten
Legacy FG N828LM
http://www.legacyfgbuilder.com
Message 3
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Subject: | Re: capacitor sizing |
--> AeroElectric-List message posted by: "Robert L. Nuckolls, III" <nuckollsr@cox.net>
At 04:01 PM 8/7/2006 -0400, you wrote:
>--> AeroElectric-List message posted by: Brian Lloyd <brian-yak@lloyd.com>
>
>
>On Aug 7, 2006, at 10:53 AM, kesleyelectric wrote:
>
>>A friend of mine asked if I could come up with a variable voltage
>>source to check the trip rating on his homegrown voltage regulator/ OV
>>protector. I have an autotransformer that would work well, but
>>the output is AC. Running through a bridge rectifier would be no
>>problem, but I would like to add a capacitor to smooth the output
>>waveform. I do not have an o-scope available, so I am looking for
>>suggestions as to capacitor size needed. Any help appreciated.
>
>Why don't you just borrow a variable voltage DC power supply from
>someone?
Good idea. Everyone should have a small, metered bench
supply for such tasks. They're very handy. I've got probably
a half dozen supplies of various capacities. A particularly
good value right now is offered by Marlin P. Jones at:
http://mpja.com/productview.asp?product=14600+PS
They're out of stock on this one right now but should
have more shortly.
Bob . . .
---------------------------------------------------------
< What is so wonderful about scientific truth...is that >
< the authority which determines whether there can be >
< debate or not does not reside in some fraternity of >
< scientists; nor is it divine. The authority rests >
< with experiment. >
< --Lawrence M. Krauss >
---------------------------------------------------------
Message 4
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Subject: | Re: EFIS - BMA or GRT? |
--> AeroElectric-List message posted by: "John W. Cox" <johnwcox@pacificnw.com>
Compair was the rumored source of the legal challenge to Rick Schrameck
and Dr. Cadwell's kitbuilt Epic LT at OSH '05. After the dust settled,
Rick got the coveted FAA Kit Approval Letter, Dr. Cadwell received his
Conditional Airworthiness and Tom Poberzny agreed to prominently display
three Epic's on the main flight line. The spat wasted lots of time and
money within the FAA. The new 51% Task Force is beginning at the point
the dust settled.
With Rick selecting OP Tech for the certification pursuit, I would
imagine Compair is still pouting by such a statement. Everyone should
do the kind of research Tim Olson did regarding his selection of Chelton
and watch as Deem Davis's OP Tech comes down the production line. Can
someone substantiate a rumor that it won't work?
John Cox
N49CX
-----Original Message-----
From: owner-aeroelectric-list-server@matronics.com
[mailto:owner-aeroelectric-list-server@matronics.com] On Behalf Of
marknlisa@hometel.com
Sent: Tuesday, August 08, 2006 6:16 AM
Subject: AeroElectric-List: Re: EFIS - BMA or GRT?
--> AeroElectric-List message posted by: marknlisa@hometel.com
Compair's owner said during a press conference at OSH they won't be
using/offering OP Tech gear in any of their aircraft (they're seeking
certification for the -9 and -12) because they can't get the systems to
work.
Mark Sletten
Legacy FG N828LM
http://www.legacyfgbuilder.com
Message 5
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Subject: | EFIS - BMA or GRT? Op Tech |
--> AeroElectric-List message posted by: "John Tvedte" <JohnT@comp-sol.com>
Mike,
The Chelton does have 2 AHRS inputs....pin 7&49 on the HD62 connector is
AHRS2. One can switch via software on the IDU.
One can also wire the units separately - or using AHRS1 input, a switch
can select which AHRS is 'active'.
I have not checked on the air data portion -
John
Time: 02:27:43 PM PST US
Subject: RE: AeroElectric-List: EFIS - BMA or GRT? Op Tech
From: "RV Builder (Michael Sausen)" <rvbuilder@sausen.net>
--> AeroElectric-List message posted by: "RV Builder (Michael Sausen)"
<rvbuilder@sausen.net>
Both the Chelton and the OP are single screen or dual screen and both
have the option of adding a second or third screen. You can do a one to
one comparison based on the prices by ignoring the name next to each.
The Chelton does not include the EIS or the probes while the OP only
doesn't include the probes. Neither OP nor Chelton are fully redundant
at the ADHARS level, only the screen/processing level. Also keep in
mind that the new AFS stuff uses x-bow but it may be the 500 series and
I believe GRT also might but I'm not positive. However the GRT is a
fully redundant system.
Michael Sausen
RV-10 #352 Buildus Interuptus due to moving
Message 6
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Subject: | Re: Re which encoder to buy |
Skip,
Another option (with RS232) is the Rocky Mountain uEncoder. This is
a 3.125" instrument which contains the encoder and all three primary
instruments and OAT. Info here.
http://www.rkymtn.com/
Great deal on an almost new one for sale here
http://www.vansairforce.com/community/showthread.php?t-16
Charlie Kuss
>I need the rs232 output for the gps, any comments on ACK or
>Transcal, or other recommendation? Thank you, Skip Simpson
Message 7
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Subject: | EFIS - BMA or GRT? Op Tech |
--> AeroElectric-List message posted by: "RV Builder (Michael Sausen)" <rvbuilder@sausen.net>
Yep, I'm aware that it has the capability. What I was referring to was
what is standard. This thread went a little sideways because of some
peoples passion with what they purchased. I have no problem with that
and I think everyone should be that confident in what they bought. As
Alan said do some due diligence before you plop down any amount of money
on experimental EFIS's. I haven't made a decision yet personally and I
am very anxious to see what comes out from OP & Chelton over the next 6
months or so. They both have some improvements coming.
Michael Sausen
RV-10 #352 Buildus Interuptus due to moving
-----Original Message-----
From: owner-aeroelectric-list-server@matronics.com
[mailto:owner-aeroelectric-list-server@matronics.com] On Behalf Of John
Tvedte
Sent: Tuesday, August 08, 2006 9:50 AM
Subject: RE: AeroElectric-List: EFIS - BMA or GRT? Op Tech
--> AeroElectric-List message posted by: "John Tvedte"
--> <JohnT@comp-sol.com>
Mike,
The Chelton does have 2 AHRS inputs....pin 7&49 on the HD62 connector is
AHRS2. One can switch via software on the IDU.
One can also wire the units separately - or using AHRS1 input, a switch
can select which AHRS is 'active'.
I have not checked on the air data portion -
John
Time: 02:27:43 PM PST US
Subject: RE: AeroElectric-List: EFIS - BMA or GRT? Op Tech
From: "RV Builder (Michael Sausen)" <rvbuilder@sausen.net>
--> AeroElectric-List message posted by: "RV Builder (Michael Sausen)"
<rvbuilder@sausen.net>
Both the Chelton and the OP are single screen or dual screen and both
have the option of adding a second or third screen. You can do a one to
one comparison based on the prices by ignoring the name next to each.
The Chelton does not include the EIS or the probes while the OP only
doesn't include the probes. Neither OP nor Chelton are fully redundant
at the ADHARS level, only the screen/processing level. Also keep in
mind that the new AFS stuff uses x-bow but it may be the 500 series and
I believe GRT also might but I'm not positive. However the GRT is a
fully redundant system.
Michael Sausen
RV-10 #352 Buildus Interuptus due to moving
Message 8
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Subject: | MPJA motion detector for gear up warning |
--> AeroElectric-List message posted by: Ernest Christley <echristley@nc.rr.com>
OK, I've been bit. I bought an MPJA motor controller kit to dim lights
with, and they sent me a catalogue. The thing is full of cheap little
kits to make circuit boards to do all sorts of neat projects.
What I have in mind now is there motion detector kit. It's effective
to about 15ft. That is justs about the right distance for the gear up
warning to start screeching. What I have now is a normally open micro
push-button switch that my locking pin depresses when it's fully
seated. Another normally open push-button on the retraction handle and
in series with the first will let me light an LED on the panel when the
gear are down and locked and I push the button. (Drop gear and
verify). So, now I'm thinking a more automated system would be to
replace the normally open switch at the gear lock-pin with a normally
closed, and let it power the motion detector, which will raise a ruckuss
if it senses anything, be it another plane (I'm building a low wing) or
the ground.
Has anyone tried this? At only $15 or so, the thing is just begging to
be tried.
--
,|"|"|, Ernest Christley |
----===<{{(oQo)}}>===---- Dyke Delta Builder |
o| d |o http://ernest.isa-geek.org |
Message 9
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Subject: | Auburn, CA Seminar (Sacramento) |
--> AeroElectric-List message posted by: "Robert L. Nuckolls, III" <nuckollsr@cox.net>
EAA Chapter 526 has requested a seminar presentation on
a really tight schedule. Dr. Dee and I have purchased tickets
to travel to Auburn, CA for a presentation on August 26/27.
This is an invitation for Northern CA members of the AeroElectric
List to join us for a weekend of intense airplane-speak. See:
http://aeroelectric.com/seminars/Auburn.html
We'd be pleased to meet you in person . . .
Bob . . .
---------------------------------------------------------
< What is so wonderful about scientific truth...is that >
< the authority which determines whether there can be >
< debate or not does not reside in some fraternity of >
< scientists; nor is it divine. The authority rests >
< with experiment. >
< --Lawrence M. Krauss >
---------------------------------------------------------
Message 10
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Subject: | R/C Attitude ind. |
I have an electric r/c allen attitude indicator and there are 4 pins in the
back A,B,C,D Does anyone know how I should wire this up?
Thank you
G.
RV8 Wirrrrrrrrrrring
Message 11
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Subject: | Re: DC generators |
Wes,
I guess I qualify. It seems like the 50 amp generator should be very safe
with a 35 amp regulator.
Of course, this assumes that the regulator is adjusted right. I would think
that the 35 amp CB would trip is this is not the case.
I could make wise cracks here, but I'll leave that for someone else!
Dan Hopper
Automotive Electrical Engineer, Ret.
In a message dated 8/8/2006 9:12:19 A.M. Eastern Daylight Time,
wsknettl@centurytel.net writes:
--> AeroElectric-List message posted by: Wes K <wsknettl@centurytel.net>
Hello,
Can someone from yesteryear confirm that a Cessna with a 50 amp
generator, 35 amp regulator and 35 amp main generator CB will not self
destruct.
Thanks
Wes K
Message 12
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Subject: | Re: DC generators |
--> AeroElectric-List message posted by: "Robert L. Nuckolls, III" <nuckollsr@cox.net>
At 08:04 AM 8/8/2006 -0500, you wrote:
>--> AeroElectric-List message posted by: Wes K <wsknettl@centurytel.net>
>
>Hello,
>Can someone from yesteryear confirm that a Cessna with a 50 amp generator,
>35 amp regulator and 35 amp main generator CB will not self destruct.
The breaker seems undersized. There's no risk of "destruction" but
a slight risk for nuisance tripping along with an inability to utilize
the generator's full output capability due to the overly protective
regulator.
But if the present setup has been working "okay", there's probably
no pressing reason to mess with it.
Bob . . .
---------------------------------------------------------
< What is so wonderful about scientific truth...is that >
< the authority which determines whether there can be >
< debate or not does not reside in some fraternity of >
< scientists; nor is it divine. The authority rests >
< with experiment. >
< --Lawrence M. Krauss >
---------------------------------------------------------
Message 13
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Subject: | Re: DC generators |
--> AeroElectric-List message posted by: Brian Lloyd <brian-yak@lloyd.com>
On Aug 8, 2006, at 9:04 AM, Wes K wrote:
> --> AeroElectric-List message posted by: Wes K
> <wsknettl@centurytel.net>
>
> Hello,
> Can someone from yesteryear confirm that a Cessna with a 50 amp
> generator, 35 amp regulator and 35 amp main generator CB will not
> self destruct.
It will not self destruct. The over-current relay in the regulator
will open at 35A and reduce the field current, reducing output. All
you will see is the generator switch from constant voltage to
constant current and the bus voltage will then drop.
The breaker sounds a bit undersized to me. You might get nuisance
trips but if it is working, who am I to fight with success.
Brian Lloyd 361 Catterline Way
brian-yak AT lloyd DOT com Folsom, CA 95630
+1.916.367.2131 (voice) +1.270.912.0788 (fax)
I fly because it releases my mind from the tyranny of petty things . . .
Antoine de Saint-Exupry
Message 14
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Subject: | Re: capacitor sizing |
--> AeroElectric-List message posted by: Brian Lloyd <brian-yak@lloyd.com>
On Aug 8, 2006, at 10:19 AM, Robert L. Nuckolls, III wrote:
>> Why don't you just borrow a variable voltage DC power supply from
>> someone?
>
>
> Good idea. Everyone should have a small, metered bench
> supply for such tasks. They're very handy. I've got probably
> a half dozen supplies of various capacities. A particularly
> good value right now is offered by Marlin P. Jones at:
>
> http://mpja.com/productview.asp?product=14600+PS
>
> They're out of stock on this one right now but should
> have more shortly.
Here is a 25A lightweight switcher that should be able to run most of
your aircraft electrical system for testing. Wire it to your
alternator's B-lead so you can test everything.
http://www.mfjenterprises.com/products.php?prodid=MFJ-4225MV
Brian Lloyd 361 Catterline Way
brian-yak AT lloyd DOT com Folsom, CA 95630
+1.916.367.2131 (voice) +1.270.912.0788 (fax)
I fly because it releases my mind from the tyranny of petty things . . .
Antoine de Saint-Exupry
Message 15
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Subject: | Fig. Z-32 Question |
An asterisk indicates the 14 AWG wire from the Main Battery Bus to the E-Bus
Alternate Feed Relay needs to be 6" long or less.
Considering that it is protected by a fuse at the bus, why is it necessary
to keep it short?
Thanks.
John
Message 16
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Subject: | Wiring 2 radios w/o audio panel |
--> AeroElectric-List message posted by: "6440 Auto Parts" <sales@6440autoparts.com>
Got a friend that wants to install a second radio in his C150 but does
not want to install an audio panel. What kind of swicth or switches should
he use to switch between the radios to make this work ?
Randy
Message 17
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Subject: | Re: Tablet & Laptop PC Use in Aircraft |
--> AeroElectric-List message posted by: "N395V" <n395v@hughes.net>
For several years I have played with several computers and computer based programs
in the cockpit to replace charts, approach plates, portable GPS and in cockpit
weather.
There are some truths that cannot be violated. Unless you bluetooth and have a
really big battery there will be too many wires no matter what you do. Blue tooth
presents its own problems and does not totally eliminate wiring.
No current tablet/portable has excellent sunlight readability.
All the programs are resource hogs and often move slowly when you badly need fast.
They are windows based and prone to crash at the worst possible moment.
If you frequently go high ( . (low teens and above)you will gork the drive. Ask
me how I know.
I have used Flitesoft, Vista, Truemap, Chartcase on HP TC 1100s, Motion M1300,
and Sony U750.
While all are great programs and great machines they all suffer from the aformentioned
problems.
If you put it in a pressurised case you still have the other problems plus a bulky
case and more wiring and expense. Solid state hard drives are expensive if
you want to run your computer as a computer in addition to it's flight duties.
My need was for weather, moving map, charts and plates. After all the above gyrations
I settled on a Flight Cheetah 210 with a solid state drive.
It is a windows 2000 based unit that is skinnied down to only run the Truemap Software.
It is fast and reliable and immune to altitude. It is readable in direct
sunlight. It still has lots of wires but since it only runs aviation programs
I hardwired it into the plane.
An alternative would be a 396/496 with a card reader tablet for plates.
Building a computer system into a pressurised case wil in the end cost as musc
as a dedicated unit in the plane plus your notebook. It will just not work as
well an will be a real PITA to set up and remove.
--------
Milt
N395V
F1 Rocket
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=53432#53432
Message 18
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Subject: | Re: capacitor sizing |
Bob,
Jumping in a little late here on this concept; I am going to put an SD-8
into my flying RV later on for Z-13/8-style redundancy. I caught some
discussion about the little dynamo not being self-exciting without the added
Z-25 circuitry. I'm trying to understand what failure mode would cause the
SD-8 not to be connected to the battery and getting its excitation from that
source. Wired as per Z-13/8, it seems the battery is always available to
the alternator via the S-704-1 relay. Are we addressing a scenario where
the battery itself is taken all the way down so that it cannot close the
relay? That just seems really remote to me.
Thanks for clearing this up for me, as I know you will ;-)
-Bill B
On 8/8/06, Robert L. Nuckolls, III <nuckollsr@cox.net> wrote:
>
> --> AeroElectric-List message posted by: "Robert L. Nuckolls, III" <
> nuckollsr@cox.net>
>
> At 04:01 PM 8/7/2006 -0400, you wrote:
>
> >--> AeroElectric-List message posted by: Brian Lloyd <brian-yak@lloyd.com
> >
> >
> >
> >On Aug 7, 2006, at 10:53 AM, kesleyelectric wrote:
> >
> >>A friend of mine asked if I could come up with a variable voltage
> >>source to check the trip rating on his homegrown voltage regulator/ OV
> >>protector. I have an autotransformer that would 8work well, but
> >>the output is AC. Running through a bridge rectifier would be no
> >>problem, but I would like to add a capacitor to smooth the output
> >>waveform. I do not have an o-scope available, so I am looking for
> >>suggestions as to capacitor size needed. Any help appreciated.
> >
> >Why don't you just borrow a variable voltage DC power supply from
> >someone?
>
>
> Good idea. Everyone should have a small, metered bench
> supply for such tasks. They're very handy. I've got probably
> a half dozen supplies of various capacities. A particularly
> good value right now is offered by Marlin P. Jones at:
>
> http://mpja.com/productview.asp?product=14600+PS
>
> They're out of stock on this one right now but should
> have more shortly.
>
> Bob . . .
>
>
> ---------------------------------------------------------
> < What is so wonderful about scientific truth...is that >
> < the authority which determines whether there can be >
> < debate or not does not reside in some fraternity of >
> < scientists; nor is it divine. The authority rests >
> < with experiment. >
> < --Lawrence M. Krauss >
> ---------------------------------------------------------
>
>
Message 19
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Subject: | Re: Wiring 2 radios w/o audio panel |
--> AeroElectric-List message posted by: Brian Lloyd <brian-yak@lloyd.com>
On Aug 8, 2006, at 2:16 PM, 6440 Auto Parts wrote:
> --> AeroElectric-List message posted by: "6440 Auto Parts"
> <sales@6440autoparts.com>
>
> Got a friend that wants to install a second radio in his C150
> but does not want to install an audio panel. What kind of swicth or
> switches should he use to switch between the radios to make this
> work ?
Does he want to use headphones, the loudspeaker, or both? Does he
want to be able to listen to both radios at the same time or does he
want to only hear the selected radio? Does he have an intercom? Once
I have that information I can answer your question.
Brian Lloyd 361 Catterline Way
brian-yak AT lloyd DOT com Folsom, CA 95630
+1.916.367.2131 (voice) +1.270.912.0788 (fax)
I fly because it releases my mind from the tyranny of petty things . . .
Antoine de Saint-Exupry
Message 20
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Subject: | Re: Wiring 2 radios w/o audio panel |
--> AeroElectric-List message posted by: "6440 Auto Parts" <sales@6440autoparts.com>
Brian he wants to use headphones but no loudspeaker, he will
only use one radio at a time, and he has a 2 place in panel intercom (he
thinks it's Sigtronics but not sure without looking)
Thanks in advance Randy
----- Original Message -----
From: "Brian Lloyd" <brian-yak@lloyd.com>
Sent: Tuesday, August 08, 2006 4:30 PM
Subject: Re: AeroElectric-List: Wiring 2 radios w/o audio panel
--> AeroElectric-List message posted by: Brian Lloyd <brian-yak@lloyd.com>
On Aug 8, 2006, at 2:16 PM, 6440 Auto Parts wrote:
> --> AeroElectric-List message posted by: "6440 Auto Parts"
> <sales@6440autoparts.com>
>
> Got a friend that wants to install a second radio in his C150 but does
> not want to install an audio panel. What kind of swicth or switches
> should he use to switch between the radios to make this work ?
Does he want to use headphones, the loudspeaker, or both? Does he
want to be able to listen to both radios at the same time or does he
want to only hear the selected radio? Does he have an intercom? Once
I have that information I can answer your question.
Brian Lloyd 361 Catterline Way
brian-yak AT lloyd DOT com Folsom, CA 95630
+1.916.367.2131 (voice) +1.270.912.0788 (fax)
I fly because it releases my mind from the tyranny of petty things . . .
Antoine de Saint-Exupry
Message 21
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Subject: | Re: Wiring 2 radios w/o audio panel |
--> AeroElectric-List message posted by: Brian Lloyd <brian-yak@lloyd.com>
On Aug 8, 2006, at 6:39 PM, 6440 Auto Parts wrote:
> --> AeroElectric-List message posted by: "6440 Auto Parts"
> <sales@6440autoparts.com>
>
> Brian he wants to use headphones but no loudspeaker, he
> will only use one radio at a time, and he has a 2 place in panel
> intercom (he thinks it's Sigtronics but not sure without looking)
Hmm. If it were me I would want to be able listen to comm 2 while
using comm 1 to communicate. For example, I would want to listen to
comm 2 to hear ATIS while continuing to monitor and communicate with
ATC on comm 1.
And what about nav? Any of the radios have nav output?
Brian Lloyd 361 Catterline Way
brian-yak AT lloyd DOT com Folsom, CA 95630
+1.916.367.2131 (voice) +1.270.912.0788 (fax)
I fly because it releases my mind from the tyranny of petty things . . .
Antoine de Saint-Exupry
Message 22
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Subject: | R/C Attitude ind. |
Connector: MS3116E8-4S
Pin A: Gnd
Pin B: Gnd lights
Pin C: +14 VDC
Pin D: 0 - +14 VDC Lights
http://www.kellymfg.com/data/RCA26brochure.pdf
Page 2 - upper right corner. The information is also on a sticker on the
back of my gyro.
HTH,
Carl
--
ZK-VII - RV 7A QB - finishing? - New Zealand
http://www.rvproject.gen.nz/
-----Original Message-----
From: owner-aeroelectric-list-server@matronics.com
[mailto:owner-aeroelectric-list-server@matronics.com]On Behalf Of Gary
Sent: Wednesday, 9 August 2006 5:05 a.m.
To: aeroelectric-list@matronics.com
Subject: AeroElectric-List: R/C Attitude ind.
I have an electric r/c allen attitude indicator and there are 4 pins in
the back A,B,C,D Does anyone know how I should wire this up?
Thank you
G.
RV8 Wirrrrrrrrrrring
--
Message 23
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Subject: | Wiring 2 radios w/o audio panel |
--> AeroElectric-List message posted by: "Ed Holyoke" <bicyclop@pacbell.net>
Randy,
What I did was to use a DPST switch to move the mike and PTT leads (from
the intercom) between the 2 com radios. I labeled the switch XMIT and
put a Com 1 label on top and Com 2 underneath. I double check the switch
before transmitting to make sure I'm getting out on the radio I had
intended to use. If both Coms are at nearly the same frequency, I
sometimes get some weird feedback if I don't turn down the radio I'm not
transmitting on, but other than that it works fine.
I hooked the audio outputs together through 100 ohm resistors. I also
have a NAV radio hooked up the same way. Another guy I know didn't use
the resistors and it works fine for him. I use the individual volume
controls on the radios to listen to either or both. Very handy for
listening to ATIS or AWOS. I often leave Com 2 on guard or flight watch
on cross country flights and turn down if it interferes with flight
following and when entering the terminal area.
I hooked up a failsafe headset jack directly to Com 1 in case the
intercom fails. I don't know if I needed to do that, but it seemed like
a good idea at the time.
Pax,
Ed Holyoke
-----Original Message-----
From: owner-aeroelectric-list-server@matronics.com
[mailto:owner-aeroelectric-list-server@matronics.com] On Behalf Of 6440
Auto Parts
Sent: Tuesday, August 08, 2006 3:39 PM
Subject: Re: AeroElectric-List: Wiring 2 radios w/o audio panel
--> AeroElectric-List message posted by: "6440 Auto Parts"
<sales@6440autoparts.com>
Brian he wants to use headphones but no loudspeaker, he will
only use one radio at a time, and he has a 2 place in panel intercom (he
thinks it's Sigtronics but not sure without looking)
Thanks in advance Randy
----- Original Message -----
From: "Brian Lloyd" <brian-yak@lloyd.com>
Sent: Tuesday, August 08, 2006 4:30 PM
Subject: Re: AeroElectric-List: Wiring 2 radios w/o audio panel
--> AeroElectric-List message posted by: Brian Lloyd
<brian-yak@lloyd.com>
On Aug 8, 2006, at 2:16 PM, 6440 Auto Parts wrote:
> --> AeroElectric-List message posted by: "6440 Auto Parts"
> <sales@6440autoparts.com>
>
> Got a friend that wants to install a second radio in his C150 but
does
> not want to install an audio panel. What kind of swicth or switches
> should he use to switch between the radios to make this work ?
Does he want to use headphones, the loudspeaker, or both? Does he
want to be able to listen to both radios at the same time or does he
want to only hear the selected radio? Does he have an intercom? Once
I have that information I can answer your question.
Brian Lloyd 361 Catterline Way
brian-yak AT lloyd DOT com Folsom, CA 95630
+1.916.367.2131 (voice) +1.270.912.0788 (fax)
I fly because it releases my mind from the tyranny of petty things . . .
Antoine de Saint-Exupry
Message 24
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|
Subject: | Re: Mag switches-what size? |
Bob, thanks for the info. I wanted something more specific, so I called
Unison.They said 3A @ 200V AC is the min rating, for anyone who wants to
know.
--> AeroElectric-List message posted by: "Robert L. Nuckolls, III" <
> nuckollsr@cox.net>
>
> At 01:45 PM 8/3/2006 -0600, you wrote:
>
> >I want to use smaller size switches in place of the normal rotary type
> mag
> >switch. What is minimum current rating/volt rating for such a switch when
> >used with regular mags? Since these ground the mags, it's not clear to me
> >how to size them... any input is appreciated. Thx, Steve.
>
> Plain vanilla toggle switches are fine. See
>
> http://www.aeroelectric.com/Pictures/Switches/s700dwg.jpg
>
> http://www.aeroelectric.com/Pictures/Switches/switch2.jpg
>
> Magnetos are not especially "stressful" to their
> controlling switches. The standard toggle has been
> the ignition switch of choice called out in the z-figures
> since day-one irrespective of the ignition system technology.
>
> Bob . . .
>
>
> ---------------------------------------------------------
> < What is so wonderful about scientific truth...is that >
> < the authority which determines whether there can be >
> < debate or not does not reside in some fraternity of >
> < scientists; nor is it divine. The authority rests >
> < with experiment. >
> < --Lawrence M. Krauss >
> ---------------------------------------------------------
>
>
Message 25
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Subject: | R/C Attitude ind. |
Ok - my mistake - I just looked at our non-lighted version rather than
RTFMing....
Pin A: Gnd
Pin B: +14VDC
on the label on the back, and I've just powered it up - noisy!
YMMV...
Carl
-----Original Message-----
From: owner-aeroelectric-list-server@matronics.com
[mailto:owner-aeroelectric-list-server@matronics.com]On Behalf Of Carl
Morgan
Sent: Wednesday, 9 August 2006 12:05 p.m.
To: aeroelectric-list@matronics.com
Subject: RE: AeroElectric-List: R/C Attitude ind.
Connector: MS3116E8-4S
Pin A: Gnd
Pin B: Gnd lights
Pin C: +14 VDC
Pin D: 0 - +14 VDC Lights
http://www.kellymfg.com/data/RCA26brochure.pdf
Page 2 - upper right corner. The information is also on a sticker on the
back of my gyro.
HTH,
Carl
--
ZK-VII - RV 7A QB - finishing? - New Zealand
http://www.rvproject.gen.nz/
-----Original Message-----
From: owner-aeroelectric-list-server@matronics.com
[mailto:owner-aeroelectric-list-server@matronics.com]On Behalf Of Gary
Sent: Wednesday, 9 August 2006 5:05 a.m.
To: aeroelectric-list@matronics.com
Subject: AeroElectric-List: R/C Attitude ind.
I have an electric r/c allen attitude indicator and there are 4 pins in
the back A,B,C,D Does anyone know how I should wire this up?
Thank you
G.
RV8 Wirrrrrrrrrrring
--
Message 26
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Subject: | Re: EFIS - BMA or GRT? Op Tech |
--> AeroElectric-List message posted by: Tim Olson <Tim@MyRV10.com>
I have just a couple things to add about EFIS Choices.
As someone said, make a list of your requirements on paper before you
go shopping. Read as much as you can so you even KNOW all of the
features you may be looking for. Then pick an EFIS that has as
much as possible that's on your list. Everyone's list will be
different.
Fly behind anything you think you might want to buy. It will
be an incredibly valuable experience. I nearly built an RV-6
at one point...but flew one first and that put me into a holding
pattern. An EFIS is a complex piece of equipment. It's worth
a few hundred bucks to find someone and fly behind one.
One thing that people always forget about with their EFIS is
database updates. A GRT or BMA might be a fine EFIS for you,
but if you're going to rely on them to fly approaches, remember
that you're going to need a current database. Or if you're
controlling the approach with a 430/530/480, you will need
a current one there....or at least a current chart in hand
and the ability to keep in close enough touch during the
approach that you don't let your fancy GPS/Com or EFIS fly
you on a non-current approach. I have a Chelton system, with
a database subscription. If you can't get a database update
on a 28 day cycle for whatever your primary navigation gear is,
you're going to be severely limited. That's my main gripe
about the GRT stuff, by the way. You really need to look at
the whole big picture in this much detail.
As far as the AHRS goes, I think someone needs to set the record
straight on the 420/425/500 stuff being flung around. The 420
and 425 are pretty darn close, and I've been seeing lots of
actual data lately showing there are some GPS issues with the
unit that may be causing some of the failures people are having.
I'd be a bit leery until the company has it solved and wouldn't
assume the 420 isn't affected. I've now heard that numerous
425 owners who have "fixed" units are still having problems.
Then, dig in a bit further and ask someone in the know EXACTLY
what is the difference between the real certified 500 system,
and the "500 based" systems that are being touted around. Lots
of people are saying theirs use the 500, but in at least
some cases, it is not truly the same 500....but a 500 with
some of the specialties removed...turning it into a slightly
less ruggedized and non-certified experimental unit. Do some
serious research into this.
Don't forget cost. Nobody should take offense when someone picks
an EFIS that's not their favorite. I personally thought the GRT
stuff looked pretty good for that budget. Things like the
database updates, and the screen quality knocked them out for me,
but for some buyers, it may be their dream panel. Everyone has
a different mission. It's also nice to see people like Deems
try something a little less common in our EFIS world. The OP
stuff hasn't really been as popular with our "budget" kits, so
it'll be interesting to see how it all goes. It is definitely
different than the other offerings.
As far as screen size, having never flown behind the huge
screen systems, but having flown behind my Cheltons, I personally
can't see why a bigger screen is necessarily better. It would
depend on how flexible the information placement is. Certainly
though, numerous smaller screens can be just as effective as
a pair of larger screen. Since our panels are only so big, we
have limited space, and depending on your personal requirements
for backup systems, you may not have the space you want for
big screens. Just rest assured that big or small, you should
be able to get all the functionality you need into your panel,
and from a practical point of view I really don't see that the
size would matter much, as long as you have something in the
neighborhood of the size of the GRT's.
There's just way too much involved in these decisions, and
making them can be quite trying at times. Just make sure you
don't sell yourself short an make a quick and rash decision.
One minor note: For those who demand dual AHRS systems, I know
the GRT already does this, but now with the Pinpoints for
the Cheltons you have that option as well. Not a requirement
for everyone, but just so you know, there is now the option.
Tim Olson - RV-10 N104CD - Flying
do not archive
Alan K. Adamson wrote:
> --> AeroElectric-List message posted by: "Alan K. Adamson" <aadamson@highrf.com>
>
> Um, who said anything about "integrated" as OP does. I'll rephrase that to
> "faceless". The Cheltons are standalone radios/Transponder that can be
> integrated into the FMS. I have no idea of price but I understand they will
> be available in standalone with the funky screws and standalone with regular
> mounting (for us normal folks). They may also come with a removable face
> that would let you mount the bulk of the hardware elsewhere.
>
> Also, not sure what you are talking about on the radios. The card that I
> saw looked normal, and here is the webpage, the displays are 2 digits past
> the decimal, just like everyone else. The unit on top is a transponder.
>
> http://www.d2av.com/Radios/
>
> Alan
> -----Original Message-----
> From: owner-aeroelectric-list-server@matronics.com
> [mailto:owner-aeroelectric-list-server@matronics.com] On Behalf Of RV
> Builder (Michael Sausen)
> Sent: Monday, August 07, 2006 7:24 PM
> To: aeroelectric-list@matronics.com
> Subject: RE: AeroElectric-List: EFIS - BMA or GRT? Op Tech
>
> --> AeroElectric-List message posted by: "RV Builder (Michael Sausen)"
> --> <rvbuilder@sausen.net>
>
> Just talked to Josh and you are correct. They look very nice! About
> the same price as a G900. Just like the OP though, I don't see the
> point of an integrated radios. Lot more money for not much added
> functionality. Personal preference I guess. One thing I thought was funny
> was the number of digits on the radio display at OSH. Only one digit past
> the decimal point. Hmmmm.
>
> Michael Sausen
>
> -----Original Message-----
> From: owner-aeroelectric-list-server@matronics.com
> [mailto:owner-aeroelectric-list-server@matronics.com] On Behalf Of Alan K.
> Adamson
> Sent: Monday, August 07, 2006 5:09 PM
> To: aeroelectric-list@matronics.com
> Subject: RE: AeroElectric-List: EFIS - BMA or GRT? Op Tech
>
> --> AeroElectric-List message posted by: "Alan K. Adamson"
> --> <aadamson@highrf.com>
>
> Uh, don't think that's true.... Maybe I got my inches wrong, but D2AV had a
> handout of the "large display" (could it have been 8.4", I don't
> remember")... Coming soon to an Avionics Shop near your. Not just for the
> Certified guys, but also for the EX guys...plus new digital radios.
>
> Alan
>
> -----Original Message-----
> From: owner-aeroelectric-list-server@matronics.com
> [mailto:owner-aeroelectric-list-server@matronics.com] On Behalf Of RV
> Builder (Michael Sausen)
> Sent: Monday, August 07, 2006 5:52 PM
> To: aeroelectric-list@matronics.com
> Subject: RE: AeroElectric-List: EFIS - BMA or GRT? Op Tech
>
> --> AeroElectric-List message posted by: "RV Builder (Michael Sausen)"
> --> <rvbuilder@sausen.net>
>
> Sorry, one last thing. The 10" Chelton screen is only available in the
> certified model. If you need to ask how much you can't afford it. :-)
>
> Michael Sausen
> RV-10 #352 Buildus Interuptus due to moving
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