Today's Message Index:
----------------------
1. 04:47 AM - Panel Labeling (Richard Talbot)
2. 05:53 AM - Re: Need a dc-to-dc converter (dj45)
3. 06:01 AM - Re: Panel Labeling (dj45)
4. 06:40 AM - Re: Icom A200-Help! (two radios, internal ()
5. 07:39 AM - Another wet compas problem (ed clegg)
6. 08:03 AM - Re: Backup alternator questions (Robert L. Nuckolls, III)
7. 11:19 AM - Compass (Dawson-Townsend,Timothy)
8. 11:35 AM - Re: Powering the Ignition and Fuel Injectors on Egg. Subaru (mikef)
9. 11:50 AM - Re: Backup alternator questions (Andrew Butler)
10. 12:05 PM - Re: Need a dc-to-dc converter (Ron Quillin)
11. 01:40 PM - Re: Compass (LarryMcFarland)
12. 01:46 PM - Re: Powering the Ignition and Fuel Injectors on Egg. Subaru (Ed Anderson)
13. 07:04 PM - Re: Compass (Robert Feldtman)
14. 09:59 PM - Re: Compass (Ed)
Message 1
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G'day All,
I have most of my panel wired up. I have a fairly complicated layout and
would like to follow the labelling suggestions included with the
Aeroelectric Connection. I am intending to paint the panel a matt grey to
minimise reflections in the canopy.
How have people transferred the lettering to their panels? I'm specifically
wanting to print or transfer the lettering, diagrams to the panel after it
has been painted.
Thanks
Richard
Message 2
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| Subject: | Re: Need a dc-to-dc converter |
Has Deltahawk given you a delivery date yet?
We had to give up on them after two setback dates.
--------
Do not archive
Dan Stanton
N9801S
99.9% Done
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=154843#154843
Message 3
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| Subject: | Re: Panel Labeling |
Hello Richard,
I used the rub on transfers from ACS for most of the panel. Use the large ones
if you go that way, they are pretty small anyway.
Also used a P-Touch label maker using the clear with white print on some of them.
Used the outdoor type of label. They will lay down pretty good and look good
on my matte grey panel.
If I had it too do over again, I think that I would use the P-Touch for all of
them.
Good luck
--------
Do not archive
Dan Stanton
N9801S
99.9% Done & Flying
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=154845#154845
Message 4
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| Subject: | Re: Icom A200-Help! (two radios, internal |
Ed as I emailed you off the Experimental Avionics list hear is more
info with some links to the drawings I mentioned. I did not realize
you had TWO radios?
You can down load the manuals (pdf) not photo copied here
directly from ICOM:
http://www.icomamerica.com/en/products/avionics/panelmount/a200/default.aspx
Ed you have two radios? and you want to use the internal
intercom? I am thinking you would be better served with with an
intercom and/or auto panel. You can make a mess or wires and
switches (and a few resistors and capacitors) to make two radios
work and still use the ICOM A200's internal intercom but WHY?
Really seriously the ICOM A200 intercom is just a HOT mic and not
very good. Remember when you switch radios you will switch
intercoms. You also reslize that the intercom is not voice activated
or VOX. You have to select it. You can't transmit on the radio and
have the intercom at the same time, one or the other.
However if you want to use it, here are some drawings as an
adjunct to the manual which might be clearer.
This is more illustrated wiring picture with the external intercom
switch (DPDT) shown:
http://img486.imageshack.us/img486/8466/icoma2004lh.jpg
May a better way to wire the intercom is to use two buttons, one for
PTT and one for INTERCOM. Of course you can have two PTTs
and two INTERCOM buttons for a total of four.
http://img80.imageshack.us/img80/7822/dualbuttonwiringgz2.jpg
You can avoid a audio panel but you will need a switch to select
the radio you want to transmit on. You will slave the audio from one
ICOM to the second. This is kind of a work around.:
http://img486.imageshack.us/img486/3088/icomblock5xg.jpg
Again if you have two radios you really should get an audio panel/
VOX intercom in my opinion. You can get a used audio panel for a
few $100. A new one perfect for you from PS Engineering:
http://www.ps-engineering.com/pma4000.shtml
You realize the internal intercom is a HOT MIC intercom and the
volume has no adjustment. There is no squelch and you basically
have to select transmit or intercom but not both. I really would
encourage you to get a VOX intercom. If you have two radios an
audio panel could be real nice. eBay as them used or you could
build a RST
http://www.rst-engr.com/rst/catalog/audio_panel.html
Good Luck Happy New Year. George
---------------------------------
Be a better friend, newshound, and know-it-all with Yahoo! Mobile. Try it now.
Message 5
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| Subject: | Another wet compas problem |
Hi All,
I placed a wet compass in my panel on the upper left side. With the canopy
open-RV8- it reads approx correct. As I close the canopy this compass starts
rotating to the right and when completely clsd the compass is Off 50
degrees.
It would appear that the canopy frame is magnetized. If this is so how would
one go about the fix for this.
Thanks,
Ed Clegg
Message 6
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| Subject: | Re: Backup alternator questions |
At 07:51 PM 12/28/2007 -0800, you wrote:
>
>I have the B&C 8 amp backup alternator along with a main Plane Power 60
>amp unit. When I have them both on line, it seems like the voltage jumps
>around a lot. Suspect the two voltage regulators are "fighting" each other
>as voltage is stable with either unit running by itself. Is this a problem ?
Won't hurt anything but these two devices were
not designed nor intended to operate together.
>I'd like to leave the backup unit offline and only bring it online when
>the primary unit goes away. However, since both warning lights are taken
>to Ground to light up, I can't figure out a circuit which would allow this
>mode of operation. Any suggestions ?
Wire per 13/8 and leave the waring light off
the SD8.
Bob . . .
----------------------------------------)
( . . . a long habit of not thinking )
( a thing wrong, gives it a superficial )
( appearance of being right . . . )
( )
( -Thomas Paine 1776- )
----------------------------------------
Message 7
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bobf wrote:
"Secondly - most of us use our GPS to set our DG anyway - not the
compass."
Let's not get track (what a GPS gives you) confused with heading (what
your compass gives you). We've all seen those cross wind days where
track and heading differ by 30 degrees. That's the beauty of the EFIS
systems that compare magnetic-driven heading (your magnetometer being
essentially a compass) to GPS track, then do the math, and tell you the
wind magnitude and direction.
TDT
Tim Dawson-Townsend
tdt@aurora.aero
617-500-4812 (office)
617-905-4800 (mobile)
Message 8
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| Subject: | Re: Powering the Ignition and Fuel Injectors on Egg. |
Subaru
>>I have flow with the Real World Concepts EC2 Fuel Injection controller
for close to 5 years now. You are correct it does not have any features
which would automatically shut down the engine or reduce power- such as the
over temp protection shut down in some automobile CPUs.
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=154889#154889
Message 9
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| Subject: | Re: Backup alternator questions |
Hi Mike,
Attached is my Z13/8 variation that splits the bus for dual power supply
to an electronic ignition with a cross over relay in case either power
supply fails.
Haven't wired it up yet, but this is my general plan. I also struggled
with a low voltage warning for each power supply prior to splitting the
bus, and I ended up concluding that it doesn't make real sense unless the
bus is split.
In practise, I will probably monitor the backup bus voltage from my
AFS3500 EFIS, that allows you to hook up a primary and secondary power
source and then set alarms on each.
Andrew.
----- Original Message -----
From: "MR Corder"
To: aeroelectric-list@matronics.com
Subject: AeroElectric-List: Backup alternator questions
Date: Fri, 28 Dec 2007 19:51:35 -0800
I have the B&C 8 amp backup alternator along with a main Plane Power
60 amp unit. When I have
them both on line, it seems like the voltage jumps around a lot.
Suspect the two voltage
regulators are "fighting" each other as voltage is stable with either
unit running by itself. Is
this a problem ?
I'd like to leave the backup unit offline and only bring it online
when the primary unit goes
away. However, since both warning lights are taken to Ground to light
up, I can't figure out a
circuit which would allow this mode of operation. Any suggestions ?
-- Regards,
m
____________________________
mike.corder@sbcglobal.net
Cell 831-239-0915
===========
===========
===========
===========
Message 10
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| Subject: | Re: Need a dc-to-dc converter |
At 16:35 12/28/2007, you wrote:
>I'm building a Zenith CH-801 and am planning on using a DeltaHawk diesel
>engine. DeltaHawk uses a 24v starter but the flap and trim motors and the
>strobes require a 14v system. Does anyone know where I can get a 24 to 12v
>converter that can provide 5A continuous and 10A intermittent? I'm averse
>to using a tap on the battery string (2 batteries of 12v each) as I've had
>really bad experience doing that without an equalizer, and those things are
>really heavy. Suggestions are appreciated!
See eBay 130186327983 used item from Wentworth.
Message 11
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Hi guys,
I hope this isn't an argument for discarding the compass in lieu of the
GPS. I've already been in white-out conditions and the GPS indicating
its batteries were
failing. The compass got me back, not a great distance, but good enough
for the mere 20 miles from home. Makes no sense to not have a good
working compass
on board and one in your emergency bag too.
Larry McFarland 601HDS at www.macsmachine.com
Dawson-Townsend,Timothy wrote:
>
> bobf wrote:
>
> Secondly - most of us use our GPS to set our DG anyway - not the
> compass.
>
> Lets not get track (what a GPS gives you) confused with heading (what
> your compass gives you). Weve all seen those cross wind days where
> track and heading differ by 30 degrees. Thats the beauty of the EFIS
> systems that compare magnetic-driven heading (your magnetometer being
> essentially a compass) to GPS track, then do the math, and tell you
> the wind magnitude and direction.
>
> TDT
>
> Tim Dawson-Townsend
>
> tdt@aurora.aero <mailto:tdt@aurora.aero>
>
> 617-500-4812 (office)
>
> 617-905-4800 (mobile)
>
> *
>
> *
Message 12
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| Subject: | Re: Powering the Ignition and Fuel Injectors on Egg. |
Subaru
Mike, sounds like a good plan.
With the Rotary and dual spark plugs, its possible to set up an electric circuit
such that each coil and each pair of injectors have their own circuit breaker/fuse.
With each wired directly to battery with its own circuit, you would have
to lose power to both coils or both injector pairs to take you down.
I can certainly understand not wanting to run any more wire than necessary with
your canard. Leaving the juice to the coils and injectors sounds like a reasonable
scheme. I know the injectors will not draw any current unless triggered
by the EC2, however, I am not as certain about the injector modules. Certainly
without being trigger there would not be as much a power drain but, I think
I would want to hook up an ignition coil to power and an ampere meter to confirm
no power drain. It does not take much over several weeks of setting in a
hanger to pull a battery down.
Here is another thought. The Contactors used in many aircraft to enable starters
and other high current devices have a good reliability history as far as I
can tell. I've been using the same ones for 10 years. You might consider two
of them installed in rear to make the circuit to the coils and injectors (actually
they handle so much current, contactors are probably over kill for this
application). Then you would only need two small current wires (plus a common
ground of course) and two switches up front to activate the contactors.
You need to keep the system as simple and with as few components as practical.
Although I do not like leaving power to a system on when I am away from it -
that might turn out to be the simplest method for certain.
Decisions, Decisions, Decisions. Happy New year
Ed
--------
Ed Anderson
Rv-6A N494BW Rotary Powered
Matthews, NC
eanderson@carolina.rr.com
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=154915#154915
Message 13
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Very true! and also all that magnetic deviation that changes yearly...That
is why I do have the whiskey compass in the plane
bobf
On 12/29/07, Dawson-Townsend,Timothy <tdawson-townsend@aurora.aero> wrote:
>
>
> bobf wrote:
>
> "Secondly - most of us use our GPS to set our DG anyway - not the compass
.
> "
>
>
> Let's not get track (what a GPS gives you) confused with heading (what
> your compass gives you). We've all seen those cross wind days where trac
k
> and heading differ by 30 degrees. That's the beauty of the EFIS systems
> that compare magnetic-driven heading (your magnetometer being essentially
a
> compass) to GPS track, then do the math, and tell you the wind magnitude
and
> direction.
>
>
> TDT
>
>
> Tim Dawson-Townsend
>
> tdt@aurora.aero
>
> 617-500-4812 (office)
>
> 617-905-4800 (mobile)
>
>
= *
>
>
Message 14
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You can, in fact, set your DG accurately with a GPS while taxiing. Sure
it will precess, but by that time you've got a pretty good idea if the
winds aloft are a factor. Better yet - throw the DG away and get an EFIS
with a remote magnetometer.
Pax,
Ed Holyoke
> On 12/29/07, *Dawson-Townsend,Timothy * <tdawson-townsend@aurora.aero
> <mailto:tdawson-townsend@aurora.aero>> wrote:
>
>
>
> bobf wrote:
>
> "Secondly - most of us use our GPS to set our DG anyway - not the
> compass."
>
>
>
> Let's not get track (what a GPS gives you) confused with heading
> (what your compass gives you). We've all seen those cross wind
> days where track and heading differ by 30 degrees. That's the
> beauty of the EFIS systems that compare magnetic-driven heading
> (your magnetometer being essentially a compass) to GPS track, then
> do the math, and tell you the wind magnitude and direction.
>
>
>
> TDT
>
>
>
>
>
> Tim Dawson-Townsend
>
> tdt@aurora.aero <mailto:tdt@aurora.aero>
>
> 617-500-4812 (office)
>
>
>*
>*
>
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