Today's Message Index:
----------------------
1. 07:19 AM - Re: Flightline harness (Robert L. Nuckolls, III)
2. 09:38 AM - Re: Rotax 91X 26 amp Gen2 $137.50 per amp (Robert L. Nuckolls, III)
3. 09:55 AM - Re: Fuselage as ground conductor (Robert L. Nuckolls, III)
4. 10:00 AM - Re: Timer circuit for led array (Robert L. Nuckolls, III)
5. 11:07 AM - Marker Beacon Remote Indicators? (Bill Putney)
6. 11:32 AM - Re: Marker Beacon Remote Indicators? (Justin Jones)
7. 11:59 AM - Re: Marker Beacon Remote Indicators? (Bob McCallum)
8. 01:09 PM - Re: Marker Beacon Remote Indicators? (BobsV35B@aol.com)
9. 01:16 PM - Re: Marker Beacon Remote Indicators? (BobsV35B@aol.com)
10. 07:09 PM - Re: Marker Beacon Remote Indicators? (Richard Girard)
11. 11:50 PM - Re: Rotax 91X 26 amp Gen2 $137.50 per amp (rparigoris)
Message 1
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Subject: | Re: Flightline harness |
I am installing a Flightline FL 760 transceiver in my RV-7A project.
I bought the wiring harness from Aircraft Spruce with jacks attached.
The wires are labeled for the most part but 3 wires have me confused.
There are 2 wires soldered to the ptt tab on the mic jacks. One wire
goes back to the harness and the other wire is loose with no label.
This one would route to your stick-grip mounted
TRANSMIT button . . .
Also there is a wire from the harness labeled ptt intercom. I'm not
sure which wires should be connected to my ptt switch on my sticks.
This wire goes to a separate button on the grip
for INTERCOM.
I have researched this on the internet with no luck. The wiring
schematic provided by the manufacturer didn't cover the extra wire
from the mic jack. Any help would be appreciated. Thank you, Tim.
Way back when I was selling MicroAir, I did an installation
manual for the transceiver which you can download here.
http://tinyurl.com/m7mj7rk
I don't know that the pin numbers on the radio are the
same as what you have but the functionality is the same.
This 'more complete' wiring diagram is an example of how
your radio would be wired.
Bob . . .
Message 2
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Subject: | Re: Rotax 91X 26 amp Gen2 $137.50 per amp |
At 09:19 AM 2/21/2014, you wrote:
><rparigor@suffolk.lib.ny.us>
>
>Hi Group
>
>Those who have a Rotax 91X know things aren't cheap.
>
>Here's a 26 amp Gen2 for $137.50 per amp:
>http://sportair.aero/12-epapower/epapower/
>
>Ron Parigoris
>
>BTW if you are a real die hard you can put one on the 130 HP 915 for $57,250
Ahhh . . . the joys of free-market exchange of value . . .
for the moment we still have many options to ponder
from a variety of sources.
The Rotax 912 manual . . .
http://tinyurl.com/pa4k5by
page 17-5 illustrates a 2nd alternator
option that appears to be a relatively stock
automotive alternator with more output and
probably MUCH less expensive.
Bob . . .
Message 3
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Subject: | Re: Fuselage as ground conductor |
At 01:08 PM 2/8/2014, you wrote:
>Good Afternoon Bob,
>
>Obviously, I am getting into this a bit late, but what about
>airplanes like the newer Bonanzas where all skins and stringers were
>painted prior to assembly? No doubt that the rivets when driven
>would spread to contact each joined skin, but would that be
>sufficient area to carry the current?
Good question . . . and it depends. A properly
bucked rivet swells to completely fill the holes
in a sheet. It seems unlikely that insulating
naterials would persist with enough contamination
to seriously degrade the conductivity . . . besides,
there are so many!
But things can happen. For example, I saw a
King Air out at Mid Continent getting
pressurization checks after some major refurb
including a paint job. Seems that the
chemical stripper used to prepare the airplane
for paint etched metal away under the rivet heads.
During pressurization checks, thousands of rivets
were found to 'bubble' when soaped.
This would place the conductivity of the airframe
in doubt as well. If stuff got in and ate material
away, then 'gas tightness' is lost.
I don't think the new assembly methods necessarily
degrade rivet conductivity but for sure, environmental
stresses (and over zealous painters) might offer
an alternative reality in time.
Bob . . .
Message 4
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Subject: | Re: Timer circuit for led array |
At 11:30 AM 2/8/2014, you wrote:
>Apologies for not properly defining the issue ....the unit consists
>of four superbright LEds in a unit and is 12 v ready. So i want to
>take more than one of these units and create a flashing beacon light.
Okay, we're mulling over the options for producing
a white flashing beacon not unlike those sold as
strobes. This brings to mind an array of lamps
that is flashed about 60-90 times a minute
with a duty-cycle on the order of 10%. The
cool thing about the short duty cycle is that
you can drive the lamps with greater than
their continuous rated current without overheating
them. This lets you get brighter flashes than
might otherwise be secured with simple
on/off flasher circuits.
Doing the flasher for controlling 12v to the
lamps is pretty simple. The venerable 555 timer
has been incorporated into dozens of light
flashing circuits over its 50+ market life.
http://tinyurl.com/28tdjz
At the same time, you might want to consider
removing any resistors in the light assemblies
and driving them with a constant current power
supply specifically tailored to LED driving.
Sorry, there's not a satisfying 'short answer'
to your question. To confine a response to simply
flashing the off the shelf fixtures you're
working with would produce an outcome that's
far short of the best we know how to do.
Bob . . .
Message 5
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Subject: | Marker Beacon Remote Indicators? |
Does anyone have a resource for 14V White, Amber, and Blue indicators.
I am reorganizing my panel and the audio panel (PS Engineering
PMA7000M-S) is going to be out of easy field of view for approaches. The
PMA7000M-S has pins on the connector for remote lights so it won't be
too hard to wire it up. The real problem is that I'm finding it really
hard to find small incandescent lamps.
I'd love to find some Dialight 507-3914 series 14V cartridge lamps and
holders. They're just about the right size. I see them available in
white and amber but no blue. There's a hole in the part number series
where the blue one was and I've found a reference for them but it says
"Obsolete" and stock "0". :(
These are either Dialight 507-3914-1474-600 or MS-18235-2BT. Someone
probably has a drawer full of them somewhere...
Bill
Message 6
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Subject: | Re: Marker Beacon Remote Indicators? |
Have you considered LEDs? There are TONS of sources out there for them. Larg
e, Small, Medium... You name it. Just search 12v led indicator on google. I s
pent days searching thru the results from google before I decided on which o
ne to do. Plenty of good choices. The other thing to consider is that the ma
rkers aren't required if you have a different way to identify the fix.
There are a very few rare approaches where there is nothing but an OM marker
beacon to mark the FAF for a localizer-only approach. In those cases, you c
an't get by with DME or an ADF, but the FAF should be identifiable with a GP
S that has the fix in its database. Note that some GPS's like the KLN-89B do
not have non-GPS approaches in their database (and thus, no unnamed approac
h fixes) in their database, but more modern ones like the Garmin GNS430 do. I
n addition, as noted above, marker beacon receivers are required equipment f
or Cat II/III ILS approaches, but not too many of us do those.
There is always the flashing light factor. The more stuff the cooler it look
s.
Lone star has some dimable light pods.
http://www.lonestaraviation.com/MS-Dimmable-Panel-Indicator-14V.html
There are other color filters available as well
Justin
On Mar 9, 2014, at 12:05, Bill Putney <billp@wwpc.com> wrote:
>
> Does anyone have a resource for 14V White, Amber, and Blue indicators.
>
> I am reorganizing my panel and the audio panel (PS Engineering PMA7000M-S)
is going to be out of easy field of view for approaches. The PMA7000M-S has
pins on the connector for remote lights so it won't be too hard to wire it u
p. The real problem is that I'm finding it really hard to find small incande
scent lamps.
>
> I'd love to find some Dialight 507-3914 series 14V cartridge lamps and hol
ders. They're just about the right size. I see them available in white and a
mber but no blue. There's a hole in the part number series where the blue on
e was and I've found a reference for them but it says "Obsolete" and stock "
0". :(
>
> These are either Dialight 507-3914-1474-600 or MS-18235-2BT. Someone proba
bly has a drawer full of them somewhere...
>
> Bill
>
>
>
==========================
=========
==========================
=========
==========================
=========
==========================
=========
>
>
>
Message 7
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Subject: | Marker Beacon Remote Indicators? |
Bill;
A quick "Google" search reveals several suppliers with part number
507-3914-1474-600 in stock. (some are the "F" version which appears to be
the RoHS compliant model) Also some have minimums which will be a problem -
but-
http://www.masterelectronics.com shows 2 of the "F" model available to ship
http://www.onlinecomponents.com has 2 of the "F" model in stock for $4.95
ea
http://www.sierraic.com has 688 in stock
http://www.componentsmax.com says they have 51,800 in stock
http://www.harrykrantz.com shows 17 available
Why not an LED indicator which would have a better service life than the
incandescent model quoted??
Bob McC
> -----Original Message-----
> From: owner-aeroelectric-list-server@matronics.com
[mailto:owner-aeroelectric-list-
> server@matronics.com] On Behalf Of Bill Putney
> Sent: Sunday, March 09, 2014 2:05 PM
> To: aeroelectric-list@matronics.com
> Subject: AeroElectric-List: Marker Beacon Remote Indicators?
>
>
> Does anyone have a resource for 14V White, Amber, and Blue indicators.
>
> I am reorganizing my panel and the audio panel (PS Engineering
> PMA7000M-S) is going to be out of easy field of view for approaches. The
> PMA7000M-S has pins on the connector for remote lights so it won't be
> too hard to wire it up. The real problem is that I'm finding it really
> hard to find small incandescent lamps.
>
> I'd love to find some Dialight 507-3914 series 14V cartridge lamps and
> holders. They're just about the right size. I see them available in
> white and amber but no blue. There's a hole in the part number series
> where the blue one was and I've found a reference for them but it says
> "Obsolete" and stock "0". :(
>
> These are either Dialight 507-3914-1474-600 or MS-18235-2BT. Someone
> probably has a drawer full of them somewhere...
>
> Bill
>
>
>
> _-
> =====================================================
> =====
> _-
> =====================================================
> =====
> _-
> =====================================================
> =====
> _-
> =====================================================
> =====
>
>
Message 8
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Subject: | Re: Marker Beacon Remote Indicators? |
Good Afternoon Bob and Bill,
May I ask why you want the marker beacon indication? It is/was part of
the low frequency range system which was shut down over sixty years ago. It
has been retained for use with a few ILSs and some NDB approaches, but such
use is rapidly being discontinued.
I know of no fix designated by a marker beacon that cannot be found via
some other legal IFR data.
That is especially true if one has an IFR approved GPS installed.
There is nothing wrong with having a marker beacon receiver installed, but
you can eliminate an antenna and some wiring by getting rid of it. You
might even be able to save some panel space.
My vote is to forget about the marker Beacon Receiver. <G>
Happy Skies,
Old Bob
Message 9
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Subject: | Re: Marker Beacon Remote Indicators? |
Good Afternoon JM,
You mention that you need to have the fix in the GPS database to use it in
lieu of the marker beacon. That is not completely correct. If there is any
other fix along the same course that IS in the database, A distance from
that fix may be used. Check out the section in the AIM that has to do with
using the GPS in lieu of ADF and DME. That and other uses are covered quite
well.
Happy Skies,
Old Bob
In a message dated 3/9/2014 1:33:23 P.M. Central Daylight Time,
jmjones2000@mindspring.com writes:
Have you considered LEDs? There are TONS of sources out there for them.
Large, Small, Medium... You name it. Just search 12v led indicator on google.
I spent days searching thru the results from google before I decided on
which one to do. Plenty of good choices. The other thing to consider is that
the markers aren't required if you have a different way to identify the
fix.
There are a very few rare approaches where there is nothing but an OM
marker beacon to mark the FAF for a localizer-only approach. In those cases,
you can't get by with DME or an ADF, but the FAF should be identifiable with
a GPS that has the fix in its database. Note that some GPS's like the
KLN-89B do not have non-GPS approaches in their database (and thus, no unnamed
approach fixes) in their database, but more modern ones like the Garmin
GNS430 do. In addition, as noted above, marker beacon receivers are required
equipment for Cat II/III ILS approaches, but not too many of us do those.
There is always the flashing light factor. The more stuff the cooler it
looks.
Lone star has some dimable light pods.
http://www.lonestaraviation.com/MS-Dimmable-Panel-Indicator-14V.html
There are other color filters available as well
Justin
On Mar 9, 2014, at 12:05, Bill Putney <_billp@wwpc.com_
(mailto:billp@wwpc.com) > wrote:
(mailto:billp@wwpc.com) >
Does anyone have a resource for 14V White, Amber, and Blue indicators.
I am reorganizing my panel and the audio panel (PS Engineering PMA7000M-S)
is going to be out of easy field of view for approaches. The PMA7000M-S
has pins on the connector for remote lights so it won't be too hard to wire
it up. The real problem is that I'm finding it really hard to find small
incandescent lamps.
I'd love to find some Dialight 507-3914 series 14V cartridge lamps and
holders. They're just about the right size. I see them available in white and
amber but no blue. There's a hole in the part number series where the blue
one was and I've found a reference for them but it says "Obsolete" and
stock "0". :(
These are either Dialight 507-3914-1474-600 or MS-18235-2BT. Someone
probably has a drawer full of them somewhere...
Bill
http://www.matronics.com/Navigator?AeroElectric-Li=========================
========================http://w===========================================
=======
Message 10
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Subject: | Re: Marker Beacon Remote Indicators? |
Rat Shack has these little guys.
http://www.radioshack.com/product/index.jsp?productId 62368&znt_campaign=Category_CMS&znt_source=CAT&znt_medium=RSCOM&znt_content=CT2032232
They only have them in red, green, and blue, though.
Rick Girard
do not archive
On Sun, Mar 9, 2014 at 3:15 PM, <BobsV35B@aol.com> wrote:
> Good Afternoon JM,
>
> You mention that you need to have the fix in the GPS database to use it in
> lieu of the marker beacon. That is not completely correct. If there is any
> other fix along the same course that IS in the database, A distance from
> that fix may be used. Check out the section in the AIM that has to do with
> using the GPS in lieu of ADF and DME. That and other uses are covered quite
> well.
>
> Happy Skies,
>
> Old Bob
>
> In a message dated 3/9/2014 1:33:23 P.M. Central Daylight Time,
> jmjones2000@mindspring.com writes:
>
> Have you considered LEDs? There are TONS of sources out there for them.
> Large, Small, Medium... You name it. Just search 12v led indicator on
> google. I spent days searching thru the results from google before I
> decided on which one to do. Plenty of good choices. The other thing to
> consider is that the markers aren't required if you have a different way to
> identify the fix.
>
> There are a very few rare approaches where there is nothing but an OM
> marker beacon to mark the FAF for a localizer-only approach. In those
> cases, you can't get by with DME or an ADF, but the FAF should be
> identifiable with a GPS that has the fix in its database. Note that some
> GPS's like the KLN-89B do not have non-GPS approaches in their database
> (and thus, no unnamed approach fixes) in their database, but more modern
> ones like the Garmin GNS430 do. In addition, as noted above, marker beacon
> receivers are required equipment for Cat II/III ILS approaches, but not too
> many of us do those.
>
> There is always the flashing light factor. The more stuff the cooler it
> looks.
>
> Lone star has some dimable light pods.
>
> http://www.lonestaraviation.com/MS-Dimmable-Panel-Indicator-14V.html
>
> There are other color filters available as well
>
> Justin
>
>
> On Mar 9, 2014, at 12:05, Bill Putney <billp@wwpc.com> wrote:
>
>
> Does anyone have a resource for 14V White, Amber, and Blue indicators.
>
> I am reorganizing my panel and the audio panel (PS Engineering PMA7000M-S)
> is going to be out of easy field of view for approaches. The PMA7000M-S has
> pins on the connector for remote lights so it won't be too hard to wire it
> up. The real problem is that I'm finding it really hard to find small
> incandescent lamps.
>
> I'd love to find some Dialight 507-3914 series 14V cartridge lamps and
> holders. They're just about the right size. I see them available in white
> and amber but no blue. There's a hole in the part number series where the
> blue one was and I've found a reference for them but it says "Obsolete" and
> stock "0". :(
>
> These are either Dialight 507-3914-1474-600 or MS-18235-2BT. Someone
> probably has a drawer full of them somewhere...
>
> Bill
>
>
> http://www.matronics.com/Navigator?AeroElectric-Li========================
> http://w==========================
>
>
> <http://www.matronics.com/contribution>
>
> *
>
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> s.matronics.com/ <http://s.matronics.com/>">http://forums.matronics.com <http://forums.matronics.com>
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--
Zulu Delta
Mk IIIC
Thanks, Homer GBYM
It isn't necessary to have relatives in Kansas City in order to be unhappy.
- Groucho Marx
Message 11
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Subject: | Re: Rotax 91X 26 amp Gen2 $137.50 per amp |
Hi Bob
True Rotax alt. alternator can be run from the front of the motor when prop is
in tractor mode, on the plane Europa I'm building it requires quite the modification
to the cowl and making sure that you have adequate clearance for the slip
ring contact for the constant speed Airmaster prop. The cowl is quite close
fitting to the motor.
I'm not an absolute advocate to $137.50 per amp, but it is driven by the aft side
of the motor.
A Europa enthusiast was offering a kit to drive an alternator from the aft side
of the motor for considerably less than $137.50 per amp. Perhaps all is OK, but
long term in service history I suspect is not available.
I personally ran scared and purchased a short B+C alternator with a regulator that
features Applied Archaic Technology (LR3C-14).
Not ideal. Weight further forward. Not cheap. The regulator is probably not as
efficient as a switcher. The alternator does not spin as fast as would be desirable.
But quality hardware, probably very reliable, you can easily set the set
point voltage. It kinda gives me a warm cozy feeling.
Set up was not $137.50 per amp, but not cheap.
I initially purchased a ND with an internal regulator that was machined to fit
a Rotax 91X vacuum pad. Unlike the B+C, no attempt was made to deal with a seized
alternator like B+C addressed. In addition the drive gear had a smaller width.
I was in contact with a Europa owner with a 6 cylinder Jabaru engine, and
he ate up several alternator driver gears with the modified ND alternator.
Ron Parigoris
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=420078#420078
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