Today's Message Index:
----------------------
1. 03:48 AM - Re: Grommet/bushing like thingy whatsit (Lapsley R & Sandra E. Caldwell)
2. 06:18 AM - Re: Hangar Radios (Brian Lloyd)
3. 06:18 AM - Re: Driving electronic rpm meter from both magnetos (Brian Lloyd)
4. 06:27 AM - Re: Crimping tool (Robert L. Nuckolls, III)
5. 06:30 AM - Re: Hangar Radios clamav-milter version 0.80j on juliet.al... (BobsV35B@aol.com)
6. 07:09 AM - Re: Re: Driving electronic rpm meter from both magnetos ()
7. 08:05 AM - Re: Hangar Radios (Fiveonepw@aol.com)
8. 08:13 AM - Re: Hangar Radios (Steve Thomas)
9. 08:26 AM - Re: Hangar Radios (Fiveonepw@aol.com)
10. 08:45 AM - Re: Hangar Radios (Werner Schneider)
11. 09:39 AM - "What's my Contribution used for?" [PLEASE READ!] (Matt Dralle)
12. 09:42 AM - Re: Hangar Radios (SportAV8R@aol.com)
13. 11:21 AM - Short antenna cable for back of radio (Mickey Coggins)
14. 04:12 PM - Re: Re: Driving electronic rpm meter from both magnetos (Trampas)
15. 05:37 PM - Re: Grommet/bushing like thingy whatsit (Eric M. Jones)
16. 06:09 PM - Re: Hangar Radios (Fiveonepw@aol.com)
17. 06:21 PM - Re: Driving electronic rpm meter from both magnetos (Fiveonepw@aol.com)
18. 07:59 PM - Re: Hangar Radios (Brian Lloyd)
19. 08:01 PM - Re: Driving electronic rpm meter from both magnetos (BobsV35B@aol.com)
20. 08:05 PM - Re: Driving electronic rpm meter from both magnetos (Brian Lloyd)
21. 08:06 PM - Re: Hangar Radios (Brian Lloyd)
22. 08:10 PM - Re: Driving electronic rpm meter from both magnetos (Brian Lloyd)
Message 1
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| Subject: | Re: Grommet/bushing like thingy whatsit |
0.12 HTML_TITLE_EMPTY BODY: HTML title contains no text
--> AeroElectric-List message posted by: "Lapsley R & Sandra E. Caldwell" <caldwel@ictransnet.com>
I couldn't find them on your website. Where are they.
Roger
Subject: Re: Grommet/bushing like thingy whatsit
From: Eric M. Jones (emjones@charter.net
<mailto:emjones@charter.net?subject=Re:%20Grommet/bushing%20like%20thingy%20whatsit&replyto=200411031333.iA3DXtQ31738@matronics.com>)
--> AeroElectric-List message posted by: "Eric M. Jones" <emjones@charter.net <mailto:emjones@charter.net?subject=Re:%20Grommet/bushing%20like%20thingy%20whatsit&replyto=200411031333.iA3DXtQ31738@matronics.com>>
On my website I sell Panduit's Lightening Hole Wire Mounts. These take a lot
of hassle out of stringing wires through rib and bulkhead lightening holes.
Regards,
Eric M. Jones
www.PerihelionDesign.com
113 Brentwood Drive
Southbridge MA 01550-2705
Phone (508) 764-2072
Email: emjones@charter.net <mailto:emjones@charter.net?subject=Re:%20Grommet/bushing%20like%20thingy%20whatsit&replyto=200411031333.iA3DXtQ31738@matronics.com>
Message 2
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| Subject: | Re: Hangar Radios |
--> AeroElectric-List message posted by: Brian Lloyd <brianl@lloyd.com>
On Nov 3, 2004, at 1:48 PM, Fiveonepw@aol.com wrote:
> My new hangar faces away from almost all AM & FM stations I like to
> listen to
> on my cheap ghetto-blaster. I can get the FM by poking the antenna
> out the
> door, but the AM is, as described here often, very much line-of-sight.
> I
> "think" the AM antenna is not connected to the external telescoping
> antenna, as it
> makes no difference in being in/out/extended/pointed anywhere in
> particular.
> Any suggestions short of getting a different hangar? GOTTA have my AM!
Actually AM broadcast is so low in frequency that it is not
line-of-sight. Regardless, your metal hangar is acting as a giant
shield and keeping the signal from getting to the internal loopstick
antenna.
To get signal from outside to inside get a bunch of hookup wire and
wrap several turns around your radio, top to bottom, not side to side.
I would guess that 10 turns is a good starting point. Attach one end
of the wire to a good ground and the other end outside and up in the
air, as long as you can make it. 100' would not be too much.
The coil of wire around the radio makes half a transformer to couple to
the loopstick antenna which forms the other half of the transformer.
Brian Lloyd 6501 Red Hook Plaza
brianl@lloyd.com Suite 201
+1.340.998.9447 St. Thomas, VI 00802
I fly because it releases my mind from the tyranny of petty things . . .
Antoine de Saint-Exupry
Message 3
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| Subject: | Re: Driving electronic rpm meter from both magnetos |
--> AeroElectric-List message posted by: Brian Lloyd <brianl@lloyd.com>
On Nov 3, 2004, at 3:20 PM, Charlie Kuss , magnetos@froghouse.org wrote:
> --> AeroElectric-List message posted by: Charlie Kuss
> <chaztuna@adelphia.net> magnetos
>
> Instead of all these electronic gyrations you are going through, why
> not do
> this instead? Forget using the mags as a signal source. Mount a hall
> effect
> sensor on the rear of the flywheel. Use that as the tach's signal. With
> this setup, you can have an combination of mags, electronic ignitions.
> etc. The ignition design won't matter one wit! I know my RMI
> MicroMonitor
> offers this option to drive the tach.
That is a very good idea. OTOH, using the p-lead is attractive as the
p-lead is already in the cockpit and available without having to make
any mechanical modifications.
It is amazing just how industrious we can be when trying to be lazy.
;-)
Brian Lloyd 6501 Red Hook Plaza
brianl@lloyd.com Suite 201
+1.340.998.9447 St. Thomas, VI 00802
There is a time to laud one's country and a time to protest. A good
citizen is prepared to do either as the need arises.
Message 4
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| Subject: | Re: Crimping tool |
--> AeroElectric-List message posted by: "Robert L. Nuckolls, III" <b.nuckolls@cox.net>
At 11:54 AM 11/3/2004 -0500, you wrote:
>--> AeroElectric-List message posted by: ALWAYSPDG@aol.com
>
>Bob, I have a question for you. I am looking for a wire stripper than can
>strip wire around 6 or even 4 gauge wire. Do you know where to look to
>purchase
>a stripper like this?
>
>
>Thanks,
>
>Mike
Sorry, never had occasion to use a stripper on wire this size.
I use a knife. There are are single blade coax strippers
that use notches of three different depths opposite the blade
to determine cut-depth. One of these used in the notch for
removing outer jacket of coax might be useful. You could also
make your own from blocks of wood, a bit of hardware and
a single edge razor blade.
Bob . . .
---
Message 5
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| Subject: | Re: Hangar Radios clamav-milter version 0.80j on juliet.al... |
--> AeroElectric-List message posted by: BobsV35B@aol.com
In a message dated 11/3/2004 10:33:52 PM Central Standard Time,
klehman@albedo.net writes:
Maybe something to do with getting it farther from the
fluorescent lights??
Ken
Or getting it further away from the reinforcing rod in the concrete?
Happy Skies,
Old Bob
AKA
Bob Siegfried
Ancient Aviator
Stearman N3977A
Brookeridge Airpark LL22
Downers Grove, IL 60516
630 985-8502
Message 6
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| Subject: | Re: Driving electronic rpm meter from both magnetos |
--> AeroElectric-List message posted by: <chaztuna@adelphia.net>
Just out of curiousity, is there any situation where a faulty tachometer could
short your magneto P leads to ground? Having one or both magnetos neutralized
by a faulty (non critical) instrument would suck!
Using a crank triggered sensor eliminates that possibility.
Charlie
>
> From: Brian Lloyd <brianl@lloyd.com>
> Date: 2004/11/04 Thu AM 09:14:07 EST
> To: aeroelectric-list@matronics.com
> Subject: Re: AeroElectric-List: Driving electronic rpm meter from both magnetos
>
>
Message 7
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| Subject: | Re: Hangar Radios |
--> AeroElectric-List message posted by: Fiveonepw@aol.com
In a message dated 11/04/2004 8:19:42 AM Central Standard Time,
brianl@lloyd.com writes:
To get signal from outside to inside get a bunch of hookup wire and
wrap several turns around your radio, top to bottom, not side to side.
I would guess that 10 turns is a good starting point. Attach one end
of the wire to a good ground and the other end outside and up in the
air, as long as you can make it. 100' would not be too much.
>>>
By "hookup wire" do you mean any ordinary insulated wire, and is there any
advantage to use shielded wire (even coax) for the vertical run (except for the
actual exposed element) to help reject nearby signals close to the freq of
interest? Does the length or orientation of the exposed element matter? Any
benefit by taking the loop into the radio and looping around the actual AM
antenna?
Thanks Brian- great information!
Mark Phillips
Message 8
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| Subject: | Re: Hangar Radios |
--> AeroElectric-List message posted by: Steve Thomas <lists@stevet.net>
Hello Brian,
Thursday, November 4, 2004, 6:13:16 AM, you wrote:
BL> To get signal from outside to inside get a bunch of hookup wire and
BL> wrap several turns around your radio, top to bottom, not side to side.
BL> I would guess that 10 turns is a good starting point. Attach one end
BL> of the wire to a good ground and the other end outside and up in the
BL> air, as long as you can make it. 100' would not be too much.
What happens when it gets struck by lightening?
--
Best regards,
Steve
Message 9
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| Subject: | Re: Hangar Radios |
--> AeroElectric-List message posted by: Fiveonepw@aol.com
What happens when it gets struck by lightening?
>>>>
You'd probably need more wire, maybe even a new radio-- best to NOT hug your
radio during electrical storms....... 8)
Mark do not archive
Message 10
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| Subject: | Re: Hangar Radios |
--> AeroElectric-List message posted by: "Werner Schneider" <glastar@gmx.net>
It will go off trough the ground connection I hope =(;o)
Werner
do not archive
----- Original Message -----
From: "Steve Thomas" <lists@stevet.net>
Subject: Re: AeroElectric-List: Hangar Radios
> --> AeroElectric-List message posted by: Steve Thomas <lists@stevet.net>
>
> Hello Brian,
>
> Thursday, November 4, 2004, 6:13:16 AM, you wrote:
>
> BL> To get signal from outside to inside get a bunch of hookup wire and
> BL> wrap several turns around your radio, top to bottom, not side to side.
> BL> I would guess that 10 turns is a good starting point. Attach one end
> BL> of the wire to a good ground and the other end outside and up in the
> BL> air, as long as you can make it. 100' would not be too much.
>
>
> What happens when it gets struck by lightening?
>
> --
>
> Best regards,
> Steve
>
>
Message 11
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| Subject: | "What's my Contribution used for?" [PLEASE READ!] |
--> AeroElectric-List message posted by: Matt Dralle <dralle@matronics.com>
Dear Listers,
Some have asked, "What's my Contribution used for?", and this is certainly
a valid question. Here are just a few examples of what your direct List
support enables. It provides for the very expensive, business-class,
high-speed T1 Internet connection used on the List, insuring maximum
performance and minimal contention when accessing List services. It pays
for the regular system hardware and software upgrades enabling the highest
performance possible for services such as the Archive Search Engine and
List Browser. It pays for 16+ years worth of online archive data available
for instant random access. And, it offsets the many hours spent writing,
developing, and maintaining the custom applications that power this List
Service such as the List Browse, Search Engine, and PhotoShare.
But most importantly, your List Contribution enables a forum where you and
your peers can communicate freely in an environment that is free from
moderation, censorship, advertising, commercialism, SPAM, and computer
viruses. How many places on the Internet can you make all those statements
about these days? I will venture to say - next to none...
It is YOUR CONTRIBUTION that directly enables these many desirable aspects
of this most valuable List service. Please support it today with your List
Contribution. Its the best investment you can make in your Sport - BAR NONE!
List Contribution Web Site:
http://www.matronics.com/contribution
Thank you for your support!
Matt Dralle
Email List Administrator
Matt G Dralle | Matronics | PO Box 347 | Livermore | CA | 94551
925-606-1001 V | 925-606-6281 F | dralle@matronics.com Email
http://www.matronics.com/ WWW | Featuring Products For Aircraft
do not archive
Message 12
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| Subject: | Re: Hangar Radios |
--> AeroElectric-List message posted by: SportAV8R@aol.com
Oh NEVER! I want my NPR! 8)
Mark do not archive
Oh, well... Prairie Home Companion man, huh? They're okay I guess.
do not archive
Message 13
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| Subject: | Short antenna cable for back of radio |
--> AeroElectric-List message posted by: Mickey Coggins <mick-matronics@rv8.ch>
Hi,
I'm looking for a short antenna cable like the one shown
on this web page.
http://www.rv8.ch/article.php?story=20041104202747822
Does anyone know where I can purchase this?
Thanks,
Mickey
--
Mickey Coggins
http://www.rv8.ch/
#82007 QB Wings/Fuselage
Message 14
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| Subject: | Re: Driving electronic rpm meter from both magnetos |
--> AeroElectric-List message posted by: "Trampas" <tstern@nc.rr.com>
Charlie,
It is possible, that a wire shorts or the tachometer itself does. Brian and
I have suggested two methods to prevent the engine quitting.
1) Brian suggested placing a 1K resistor inline with P-lead before
tachometer.
2) I suggested placing a low amperage fuse in line, 0.1 or 0.2 amps should
work.
Either method should work fine. In fact in my engine monitor the circuit is
designed with a 1.5K resistor inline for this very reason. I also recommend
that users place a fuse in the circuit where the p-lead is tapped for the
tachometer. The fuse is more for the case where the wire shorts or user
wires something wrong.
Also for those of you out there using a Jabiru engine with the tachometer
connected to the alternator, you may also want to add the in-line fuse or
resistor. This will keep from hurting the alternator or at least stopping
the charging if the tachometer or wire shorts.
However the best option for a tachometer is the inductive crank sensor.
Regards,
Trampas Stern
www.sterntech.com
-----Original Message-----
From: owner-aeroelectric-list-server@matronics.com
[mailto:owner-aeroelectric-list-server@matronics.com] On Behalf Of
chaztuna@adelphia.net
Subject: Re: Re: AeroElectric-List: Driving electronic rpm meter from both
magnetos
--> AeroElectric-List message posted by: <chaztuna@adelphia.net>
Just out of curiousity, is there any situation where a faulty tachometer
could short your magneto P leads to ground? Having one or both magnetos
neutralized by a faulty (non critical) instrument would suck!
Using a crank triggered sensor eliminates that possibility.
Charlie
>
> From: Brian Lloyd <brianl@lloyd.com>
> Date: 2004/11/04 Thu AM 09:14:07 EST
> To: aeroelectric-list@matronics.com
> Subject: Re: AeroElectric-List: Driving electronic rpm meter from both
magnetos
>
>
Message 15
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| Subject: | Re: Grommet/bushing like thingy whatsit |
--> AeroElectric-List message posted by: "Eric M. Jones" <emjones@charter.net>
>From: Lapsley R & Sandra E. Caldwell (caldwel@ictransnet.com)
>I couldn't find them on your website. Where are they.
http://www.periheliondesign.com/glastarparts.htm
I used to sell these mostly to Glastar builders. I'll move them or change
the title.
Regards,
Eric M. Jones
www.PerihelionDesign.com
113 Brentwood Drive
Southbridge MA 01550-2705
Phone (508) 764-2072
Email: emjones@charter.net
Message 16
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| Subject: | Re: Hangar Radios |
--> AeroElectric-List message posted by: Fiveonepw@aol.com
In a message dated 11/04/2004 11:43:06 AM Central Standard Time,
SportAV8R@aol.com writes:
Oh, well... Prairie Home Companion man, huh? They're okay I guess.
...where the spinners are round, the rigging is true, and the performance is
DEFINATELY, "above average!"
This message courtesy of the "Catsup Advisory Board" and proffessionaly
duct-taped and parsed by an English major (not really, hence the "do not archive",
but what do I know? (one of life's persistent
questions...................................
Mark- "companion" since I can't even remember when!
Message 17
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| Subject: | Re: Driving electronic rpm meter from both magnetos |
--> AeroElectric-List message posted by: Fiveonepw@aol.com
I'm sorry folks, but this is driving me nuts! What is the possible benefit
of knowing EXACTLY the relative rpm drop when checking mags? My EIS4000 tells
me within 10 rpms what the engine speed is with the right mag off- the engine
sounds absolutely IDENTICAL with the other'n off. Am I missing some amazing,
critical-to-safety-of-flight thing here or are y'all just so anal-retentive ya
gotta know exactly the rpm drop within some rediculous precision?
Please correct me if I'm rong!
Mark - do not archive
Message 18
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| Subject: | Re: Hangar Radios |
--> AeroElectric-List message posted by: Brian Lloyd <brianl@lloyd.com>
On Nov 4, 2004, at 12:12 PM, Steve Thomas wrote:
> BL> To get signal from outside to inside get a bunch of hookup wire and
> BL> wrap several turns around your radio, top to bottom, not side to
> side.
> BL> I would guess that 10 turns is a good starting point. Attach one
> end
> BL> of the wire to a good ground and the other end outside and up in
> the
> BL> air, as long as you can make it. 100' would not be too much.
>
>
> What happens when it gets struck by lightening?
Probably the same thing that happens when your power line or phone line
gets struck by lightning; something bad.
Put a lightning arrester from the outside wire antenna and the ground.
This can be as simple as a narrow gap between the antenna terminal and
the ground terminal.
Brian Lloyd 6501 Red Hook Plaza
brianl@lloyd.com Suite 201
+1.340.998.9447 St. Thomas, VI 00802
There is a time to laud one's country and a time to protest. A good
citizen is prepared to do either as the need arises.
Message 19
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| Subject: | Re: Driving electronic rpm meter from both magnetos |
--> AeroElectric-List message posted by: BobsV35B@aol.com
In a message dated 11/4/2004 8:21:36 PM Central Standard Time,
Fiveonepw@aol.com writes:
My EIS4000 tells
me within 10 rpms what the engine speed is with the right mag off- the
engine
sounds absolutely IDENTICAL with the other'n off.
Good Evening Mark,
I guess I must be missing something!
When you say it sounds absolutely IDENTICAL with the other one off, does
that mean you perceive no drop?
The precise number is not the big deal. What is the big deal is that you
note any change from norm.
Also, you do want to have some drop, and, on most engines, it should be
about the same on either mag.
The drop is because the point of peak combustion pressure will be different
when operating on one mag than it will be when running on two. There will be
a slight difference in the power output and that should be easily
discernible either by sound or by a difference in the RPM. If there is no change
at
all when checking the mags, that usually means that the mags do not ground when
the switch is turned off and they will be "hot" all the time.
Happy Skies,
Old Bob
AKA
Bob Siegfried
Ancient Aviator
Stearman N3977A
Brookeridge Airpark LL22
Downers Grove, IL 60516
630 985-8502
Message 20
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| Subject: | Re: Driving electronic rpm meter from both magnetos |
--> AeroElectric-List message posted by: Brian Lloyd <brianl@lloyd.com>
On Nov 4, 2004, at 10:20 PM, Fiveonepw@aol.com wrote:
> --> AeroElectric-List message posted by: Fiveonepw@aol.com
>
> I'm sorry folks, but this is driving me nuts! What is the possible
> benefit
> of knowing EXACTLY the relative rpm drop when checking mags? My
> EIS4000 tells
> me within 10 rpms what the engine speed is with the right mag off- the
> engine
> sounds absolutely IDENTICAL with the other'n off. Am I missing some
> amazing,
> critical-to-safety-of-flight thing here or are y'all just so
> anal-retentive ya
> gotta know exactly the rpm drop within some rediculous precision?
No, it probably doesn't matter that much. OTOH, the engine mfgr specs
a specific difference in drop between the two engines as a go/no-go
item and that number is usually something like 50 RPM.
OTOH, I find that the feel of the engine running on one mag or the
other is just as important but may be difficult to teach a new student.
How do I teach, "Feel that? It just doesn't feel right." I can teach
that they should taxi back to the shop if the difference in drop is
more than 50 RPM.
Brian Lloyd 6501 Red Hook Plaza
brianl@lloyd.com Suite 201
+1.340.998.9447 St. Thomas, VI 00802
There is a time to laud one's country and a time to protest. A good
citizen is prepared to do either as the need arises.
Message 21
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| Subject: | Re: Hangar Radios |
--> AeroElectric-List message posted by: Brian Lloyd <brianl@lloyd.com>
On Nov 4, 2004, at 12:05 PM, Fiveonepw@aol.com wrote:
> By "hookup wire" do you mean any ordinary insulated wire,
Yes.
> and is there any
> advantage to use shielded wire (even coax) for the vertical run
> (except for the
> actual exposed element) to help reject nearby signals close to the
> freq of
> interest?
Perhaps but this is not calibrated. Just make it as simple as possible
for now.
> Does the length or orientation of the exposed element matter?
Again, perhaps. Length is probably more important.
> Any
> benefit by taking the loop into the radio and looping around the
> actual AM
> antenna?
Perhaps. Experiment with it. I suspect if you wind it that closely
you will end up with more coupling than you like which will detune the
tuned circuits.
Brian Lloyd 6501 Red Hook Plaza
brianl@lloyd.com Suite 201
+1.340.998.9447 St. Thomas, VI 00802
There is a time to laud one's country and a time to protest. A good
citizen is prepared to do either as the need arises.
Message 22
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| Subject: | Re: Driving electronic rpm meter from both magnetos |
--> AeroElectric-List message posted by: Brian Lloyd <brianl@lloyd.com>
On Nov 4, 2004, at 11:08 AM, <chaztuna@adelphia.net> wrote:
> --> AeroElectric-List message posted by: <chaztuna@adelphia.net>
>
> Just out of curiousity, is there any situation where a faulty
> tachometer could short your magneto P leads to ground? Having one or
> both magnetos neutralized by a faulty (non critical) instrument would
> suck!
> Using a crank triggered sensor eliminates that possibility.
Yes, but so does having an isolation resistor between the p-lead wiring
at the mag switch in the cockpit and the wiring that runs to the
tachometer. That way if the tach wiring shorts, the isolation resistor
prevents that from causing a problem with the mag.
Brian Lloyd 6501 Red Hook Plaza
brianl@lloyd.com Suite 201
+1.340.998.9447 St. Thomas, VI 00802
There is a time to laud one's country and a time to protest. A good
citizen is prepared to do either as the need arises.
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