Today's Message Index:
----------------------
1. 05:37 AM - Faraday Cage (ROGER & JEAN CURTIS)
2. 06:03 AM - Re: Faraday Cage (Robert Feldtman)
3. 06:27 AM - Re: memory versus tape (Eric M. Jones)
4. 06:46 AM - Re: Re: memory versus tape (BobsV35B@aol.com)
5. 07:36 AM - OV protection - internally regulated alternator (Mark Means)
6. 08:31 AM - Re: Faraday Cage (Henador Titzoff)
7. 08:31 AM - Re: Faraday Cage (Henador Titzoff)
8. 08:34 AM - Re: Z-19 hypothetical question (user9253)
9. 08:41 AM - Re: Re: memory versus tape (Henador Titzoff)
10. 09:04 AM - Re: Faraday Cage (ROGER & JEAN CURTIS)
11. 09:38 AM - Re: Faraday Cage (Bruce Gray)
12. 09:40 AM - Re: Faraday Cage (John Cox)
13. 10:01 AM - Re: Re: memory versus tape (BobsV35B@aol.com)
14. 01:45 PM - Re: Faraday Cage (Fiveonepw@aol.com)
15. 01:48 PM - Re: E-Bus Diode & Fuseable LInk Question (Henry Trzeciakowski)
16. 02:00 PM - Faraday Cage (MaxNr@aol.com)
17. 02:04 PM - Re: Faraday Cage (Walter Fellows)
18. 02:47 PM - Re: Faraday Cage (rampil)
19. 02:47 PM - Re: Faraday Cage (ROGER & JEAN CURTIS)
20. 03:43 PM - Off Topic? Scratch build your own autopilot (Sam Hoskins)
21. 03:43 PM - Re: Faraday Cage (Ron Quillin)
22. 04:06 PM - Re: Off Topic? Scratch build your own autopilot (Charlie England)
23. 06:43 PM - Question about wire sizes (Les Kearney)
24. 06:46 PM - Re: Faraday Cage (MaxNr@aol.com)
25. 07:21 PM - Re: Question about wire sizes (Dale Ensing)
26. 08:17 PM - Re: Question about wire sizes (RALPH HOOVER)
27. 09:27 PM - Re: Question about wire sizes (Les Kearney)
28. 11:20 PM - Re: Question about wire sizes (Robert McCallum)
Message 1
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I recently heard that all aircraft to be flown IFR must have a Faraday Cage
in the structure. In other words it must be surrounded with a conductive
material in the skin. This is to conduct static electricity.
Does anyone know anything about this?? Or is it another myth? If there are
any regulations, can you please point me to them.
Thanks for your input.
Roger
Message 2
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Subject: | Re: Faraday Cage |
myth
bobf
W5RF
On 5/26/08, ROGER & JEAN CURTIS <mrspudandcompany@verizon.net> wrote:
>
>
> I recently heard that all aircraft to be flown IFR must have a Faraday Cage
> in the structure. In other words it must be surrounded with a conductive
> material in the skin. This is to conduct static electricity.
>
>
> Does anyone know anything about this?? Or is it another myth? If there are
> any regulations, can you please point me to them.
>
>
> Thanks for your input.
>
>
> Roger
>
>
Message 3
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Subject: | Re: memory versus tape |
Don't try to look cool and pretend you know what you're doing if you are uncertain
of the instructions, just say "Request Progressive Taxi Instructions." Progressive
being the key word. Remember in all cases YOU are the customer who is
to be served, not the ground controller. Remember "Confess, Communicate, Comply."
always trumps, "Hold my beer...Watch this!"
--------
Eric M. Jones
www.PerihelionDesign.com
113 Brentwood Drive
Southbridge, MA 01550
(508) 764-2072
emjones@charter.net
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=184849#184849
Message 4
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Subject: | Re: memory versus tape |
Good Morning Eric,
The statement "Remember in all cases YOU are the customer who is to be
served, not the ground controller"
was the mantra used by the last two female leaders of the FAA.
An order has recently been issued at the direction of Congressman Oberstar,
that the FAA's business is not to be conducted in that manner. Instead, they
are to consider that their mission is to issue violations.
While the air traffic controllers are not, and most do not want to be,
issuers of violations, they are in the same boat as we pilots when it comes to
anything which jeopardize their employment.
The new attitude stinks and it comes not only from congress, but from the
current white house.
Be careful out there.
In addition to our needing to avoid physical danger, we need to be aware
that the FAA is definitely not there to help.
Happy Skies,
Old Bob
AKA
Bob Siegfried
Ancient Aviator
628 West 86th Street
Downers Grove, IL 60516
630 985-8502
Stearman N3977A
Brookeridge Air Park LL22
In a message dated 5/26/2008 8:29:16 A.M. Central Daylight Time,
emjones@charter.net writes:
Don't try to look cool and pretend you know what you're doing if you are
uncertain of the instructions, just say "Request Progressive Taxi Instructions."
Progressive being the key word. Remember in all cases YOU are the customer
who is to be served, not the ground controller. Remember "Confess,
Communicate, Comply." always trumps, "Hold my beer...Watch this!"
**************Get trade secrets for amazing burgers. Watch "Cooking with
Tyler Florence" on AOL Food.
(http://food.aol.com/tyler-florence?video=4&?NCID=aolfod00030000000002)
Message 5
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Subject: | OV protection - internally regulated alternator |
I have been building an automotive conversion Velocity for many years now
and have gone through the OV protection is good (I actually have an OV
module I built and tested) to the "no longer recommended nor do we recommend
internally regulated alternators". I am running my engine successfully, have
Eaton contactors to isolate redundant batteries as well as the B lead which
is controllable via CB. I also have the monster fuse in the B lead. I
searched the archives for a couple hours and have seen much discussion on
nuisance OV breaker trips and alternator problems. My questions are:
- what are the odds of a runaway and is this usually a slow increase in
voltage or rapid?
- what is the problem with the OV protection with the internally regulated
alternators if the module works as designed and pulls the alternator offline
in a runaway situation?
- if the alternative is electronic monitoring and pulling the alternator
offline, is there a downside to this other than slow reflexes?
- what are the foreseeable consequences of delays of pulling it offline?
Thanks for any help sorting this out.
Mark Means
Message 6
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Subject: | Re: Faraday Cage |
Roger,
I am willing to bet that you did NOT hear that from an FAA guy. I have never read
that in the FARs. Just because I've never read it, though, doesn't mean it
doesn't exist; however, I 've never heard it before, and there are many aircraft
manufacturers out there like Cirrus, Diamond, etc. who have never it either.
My experimental airplane is a composite fiberglass/foam airplane, and it's
never heard of it. I will be very surprised if anyone on this email list will
be able to quote a FAR that says so.
Sounds like a good myth in the making to me.
Henador Titzof
----- Original Message ----
From: ROGER & JEAN CURTIS <mrspudandcompany@verizon.net>
Sent: Monday, May 26, 2008 8:33:19 AM
Subject: AeroElectric-List: Faraday Cage
I recently heard that all aircraft to be flown IFR must have
a Faraday Cage in the structure. In other words it must be surrounded
with a conductive material in the skin. This is to conduct static
electricity.
Does anyone know anything about this?? Or is it another myth?
If there are any regulations, can you please point me to them.
Thanks for your input.
Roger
Message 7
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Subject: | Re: Faraday Cage |
Roger,
I am willing to bet that you did NOT hear that from an FAA guy. I have never read
that in the FARs. Just because I've never read it, though, doesn't mean it
doesn't exist; however, I 've never heard it before, and there are many aircraft
manufacturers out there like Cirrus, Diamond, etc. who have never it either.
My experimental airplane is a composite fiberglass/foam airplane, and it's
never heard of it. I will be very surprised if anyone on this email list will
be able to quote a FAR that says so.
Sounds like a good myth in the making to me.
Henador Titzof
----- Original Message ----
From: ROGER & JEAN CURTIS <mrspudandcompany@verizon.net>
Sent: Monday, May 26, 2008 8:33:19 AM
Subject: AeroElectric-List: Faraday Cage
I recently heard that all aircraft to be flown IFR must have
a Faraday Cage in the structure. In other words it must be surrounded
with a conductive material in the skin. This is to conduct static
electricity.
Does anyone know anything about this?? Or is it another myth?
If there are any regulations, can you please point me to them.
Thanks for your input.
Roger
Message 8
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Subject: | Re: Z-19 hypothetical question |
Hey Bob, were you referring to me as joe-pilot? LOL
Ok, to keep me from stubbing my toe, how about the attached schematic? It features
circuit breakers within reach of the pilot, dual alternate feed for the essential
bus, relays to isolate power from the cockpit, one power wire between
engine compartment and essential bus with fusible links to protect it.
Any suggestions, comments, or improvements are welcome.
Joe Gores
--------
Joe Gores
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=184867#184867
Attachments:
http://forums.matronics.com//files/aeroelectric_z_19aa1_500.gif
Message 9
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Subject: | Re: memory versus tape |
Eric,
It is so nice that the FAA is so customer oriented. This is why the following
saying exists: "Hi, we're from the FAA, and we're here to help." If you haven't
heard it, it's just a matter of time.
Henador Titzof
----- Original Message ----
From: Eric M. Jones <emjones@charter.net>
Sent: Monday, May 26, 2008 9:23:43 AM
Subject: AeroElectric-List: Re: memory versus tape
Don't try to look cool and pretend you know what you're doing if you are uncertain
of the instructions, just say "Request Progressive Taxi Instructions." Progressive
being the key word. Remember in all cases YOU are the customer who is
to be served, not the ground controller. Remember "Confess, Communicate, Comply."
always trumps, "Hold my beer...Watch this!"
--------
Eric M. Jones
www.PerihelionDesign.com
113 Brentwood Drive
Southbridge, MA 01550
(508) 764-2072
emjones@charter.net
Message 10
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Henador,
I am not surprised!! I had never heard of this until a couple of days
ago,
and I have been around for quite some time
Roger
Roger,
I am willing to bet that you did NOT hear that from an FAA guy. I have
never read that in the FARs. Just because I've never read it, though,
doesn't mean it doesn't exist; however, I 've never heard it before, and
there are many aircraft manufacturers out there like Cirrus, Diamond,
etc.
who have never it either. My experimental airplane is a composite
fiberglass/foam airplane, and it's never heard of it. I will be very
surprised if anyone on this email list will be able to quote a FAR that
says
so.
Sounds like a good myth in the making to me.
Henador Titzof
----- Original Message ----
I recently heard that all aircraft to be flown IFR must have a Faraday
Cage
in the structure. In other words it must be surrounded with a
conductive
material in the skin. This is to conduct static electricity.
Does anyone know anything about this?? Or is it another myth? If there
are
any regulations, can you please point me to them.
Thanks for your input.
Roger
Message 11
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Yes and no. In the certified world there are more hurdles needed to be
jumped than in our experimental neighborhood. I believe that in order
for a
certified airplane to be IFR legal, it must be able to take a lightning
strike with minimal damage. The e-glass manufacturers do this by
imbedding a
copper/aluminum mesh in the skin of the aircraft. While this might be a
'Faraday Cage', it's purpose is to provide an electrical path for a
lightning strike.
This is only an issue with glass airframes.
Bruce
<http://www.glasair.org/> www.Glasair.org
-----Original Message-----
From: owner-aeroelectric-list-server@matronics.com
[mailto:owner-aeroelectric-list-server@matronics.com] On Behalf Of ROGER
&
JEAN CURTIS
Sent: Monday, May 26, 2008 12:01 PM
Subject: RE: AeroElectric-List: Faraday Cage
Henador,
I am not surprised!! I had never heard of this until a couple of days
ago,
and I have been around for quite some time
Roger
Roger,
I am willing to bet that you did NOT hear that from an FAA guy. I have
never read that in the FARs. Just because I've never read it, though,
doesn't mean it doesn't exist; however, I 've never heard it before, and
there are many aircraft manufacturers out there like Cirrus, Diamond,
etc.
who have never it either. My experimental airplane is a composite
fiberglass/foam airplane, and it's never heard of it. I will be very
surprised if anyone on this email list will be able to quote a FAR that
says
so.
Sounds like a good myth in the making to me.
Henador Titzof
----- Original Message ----
I recently heard that all aircraft to be flown IFR must have a Faraday
Cage
in the structure. In other words it must be surrounded with a
conductive
material in the skin. This is to conduct static electricity.
Does anyone know anything about this?? Or is it another myth? If there
are
any regulations, can you please point me to them.
Thanks for your input.
Roger
http://www.matronics.com/Navigator?AeroElectric-List
http://forums.matronics.com
http://www.matronics.com/contribution
Message 12
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Time to add St Elmo's Fire to the discussion and the principals of an
Air Capacitor.
All aircraft should address an effective path to discharge Static
buildup. It is when they arc through a control surface hinge or bearing
that it will get your attention. That is long after it exceeds the
aeroelectric discussion pool. I have some great pictures of composite
surfaces that were fried for lack of a dissipator wick and an effective
circuit path.
I think it's a myth like flying with aluminum foil on your head.
John Cox
From: owner-aeroelectric-list-server@matronics.com
[mailto:owner-aeroelectric-list-server@matronics.com] On Behalf Of ROGER
& JEAN CURTIS
Sent: Monday, May 26, 2008 5:33 AM
Subject: AeroElectric-List: Faraday Cage
I recently heard that all aircraft to be flown IFR must have a Faraday
Cage in the structure. In other words it must be surrounded with a
conductive material in the skin. This is to conduct static electricity.
Does anyone know anything about this?? Or is it another myth? If there
are any regulations, can you please point me to them.
Thanks for your input.
Roger
Message 13
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Subject: | Re: memory versus tape |
Good Morning Henador,
You may think you are being facetious, but there has been a major change in
direction at the FAA.
They are now directed by their superiors to be the enemy.
Most FAA personal are just as a enamored of aviation as we are, but their
jobs depend on doing what they are told. When the head of the aviation
subcommittee tells them to be bad guys, what do you think they are going to do?
Happy Skies,
Old Bob
AKA
Bob Siegfried
Ancient Aviator
628 West 86th Street
Downers Grove, IL 60516
630 985-8502
Stearman N3977A
Brookeridge Air Park LL22
In a message dated 5/26/2008 10:43:22 A.M. Central Daylight Time,
henador_titzoff@yahoo.com writes:
Eric,
It is so nice that the FAA is so customer oriented. This is why the
following saying exists: "Hi, we're from the FAA, and we're here to help." If
you
haven't heard it, it's just a matter of time.
Henador Titzof
**************Get trade secrets for amazing burgers. Watch "Cooking with
Tyler Florence" on AOL Food.
(http://food.aol.com/tyler-florence?video=4&?NCID=aolfod00030000000002)
Message 14
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Subject: | Re: Faraday Cage |
In a message dated 05/26/2008 11:06:18 AM Central Daylight Time,
mrspudandcompany@verizon.net writes:
I recently heard that all aircraft to be flown IFR must have a Faraday Cage
in the structure.
>>>
Seems I recall the Beech Starship had copper mesh in its skin for this
reason, which was another co$tly headache towards eventual certification.
Mark
do not archive
**************Get trade secrets for amazing burgers. Watch "Cooking with
Tyler Florence" on AOL Food.
(http://food.aol.com/tyler-florence?video=4&?NCID=aolfod00030000000002)
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Subject: | Re: E-Bus Diode & Fuseable LInk Question |
Bob:
I purchased from B & C their E-Bus diode with 15 watt heatsink and installed
between Main Bus & E-Bus per your Z diagram. What I'm confused about is
that their wiring diagram has 1 wire originating from a fast-tab on the
diode to the E-Bus - NO PROBLEM SO FAR: then 2 wires from 2 seperate
fast-tabs joining together then proceeding to a Circuit Breaker then to the
Main Bus....Sooooo I'm a little confused about the Circuit Breaker and why
there are 2 attach points on the diode in the first place.!!! None of your
Z diagrams show a CB between the Main & E Bus, and why 2 attach points on
the diode joining forces?
Second questions:: Im installing a Heavy E-Bus architecture, per Z-32.
Currently my E-Bus load is around 12 amps...architecture is: 18g F-link at
E-Bus---14 awg---S704-1 relay---14 awg---10amp fuse at Battery Bus.
According to B & C, fuseable links are for low power, 10 amps or less.....so
should I eliminate the fuseable link and directly wire to #10 stud on E-Bus
OR wire to a 10 or 15 amp fuse on the E-bus - and increase the Battery Bus
from 10 amp to 15 amp?
Thanks
Henry
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It sure looks like they intended that when they wrote FAR Part 23. Go to the
FAA home page and click on FAR 23.867 (c) (2).
Bob Dingley
**************
Get trade secrets for amazing burgers. Watch
"Cooking with Tyler Florence" on AOL Food.
(http://food.aol.com/tyler-florence?video=4&?NCID=aolfod00030000000002)
Message 17
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Subject: | Re: Faraday Cage |
This seems to be a requirement for certified aircraft, for example the
DA 20 is not certified for IFR flight and does not have the cage but
the DA 40 is and does have the cage. The Columbia had to add the cage
in adapting the ES to the certified Columbia. The farady cage for
composite aircraft is created with a copper or aluminum mesh in the
outer layer of the shells, electrically bonding the parts of the
exterior together (such as aileron to wing skin), adding a ground
plane and electrically isolating the control tubes and cables from the
cockpit. You can read more about it in Martin Hollmann's book Advanced
Aircraft Design.
On Mon, May 26, 2008 at 5:33 AM, ROGER & JEAN CURTIS
<mrspudandcompany@verizon.net> wrote:
>
>
> I recently heard that all aircraft to be flown IFR must have a Faraday Cage
> in the structure. In other words it must be surrounded with a conductive
> material in the skin. This is to conduct static electricity.
>
>
> Does anyone know anything about this?? Or is it another myth? If there are
> any regulations, can you please point me to them.
>
>
> Thanks for your input.
>
>
> Roger
>
>
Message 18
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Subject: | Re: Faraday Cage |
Metal mesh in the wing skin does not constitute a faraday cage.
Different purpose and different design
--------
Ira N224XS
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=184928#184928
Message 19
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Part 23 deals with certified aircraft. Experimental aircraft, such as
the
wooden one, which I am building, are not required to meet these specs.
That
being said, it is not a bad idea to try to build an aircraft that is as
safe
as possible.
Roger
-----Original Message-----
From: owner-aeroelectric-list-server@matronics.com
[mailto:owner-aeroelectric-list-server@matronics.com] On Behalf Of
MaxNr@aol.com
Sent: Monday, May 26, 2008 4:57 PM
Subject: AeroElectric-List: Faraday Cage
It sure looks like they intended that when they wrote FAR Part 23. Go to
the
FAA home page and click on FAR 23.867 (c) (2).
Bob Dingley
**************
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Subject: | Off Topic? Scratch build your own autopilot |
FYI - I have a very unusual auction going on Ebay for a scratch-build
autopilot, and a story that goes with it. Here's the auction link:
http://cgi.ebay.com/ebaymotors/ws/eBayISAPI.dll?ViewItem&item=190225235720
If that doesn't work just plug 190225235720 into the Ebay search box.
Sorry for the shameless plug.
Sam Hoskins
Murphysboro, IL
Message 21
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Subject: | Re: Faraday Cage |
At 13:56 5/26/2008, you wrote:
>It sure looks like they intended that when they wrote FAR Part 23.
>Go to the FAA home page and click on FAR 23.867 (c) (2).
>
>Bob Dingley
Is "that" a Faraday Cage you refer to?
I fly a certified AC that is also certified for IFR. TC is A18CE.
It's tube and fabric.
Sure no cage around me.
<http://www.airweb.faa.gov/Regulatory_and_Guidance_Library/rgFAR.nsf/0/712e485b8e0b06c185256687006f0fb7%21OpenDocument&ExpandSection=-1&Highlight=23.867#_Section1>
Hide details for Sec. 23.867
Sec. 23.867
Part 23 AIRWORTHINESS STANDARDS: NORMAL, UTILITY, ACROBATIC, AND
COMMUTER CATEGORY AIRPLANES
Subpart D--Design and Construction
Electrical Bonding and Lightning Protection
Sec. 23.867
[Electrical bonding and protection against lightning and static electricity.]
(a) The airplane must be protected against catastrophic effects from lightning.
(b) For metallic components, compliance with paragraph (a) of this
section may be shown by--
(1) Bonding the components properly to the airframe; or
(2) Designing the components so that a strike will not endanger the airplane.
(c) For non-metallic components, compliance with paragraph (a) of
this section may be shown by--
(1) Designing the components to minimize the effect of a strike; or
(2) Incorporating acceptable means of diverting the resulting
electrical current so as not to endanger the airplane.
Sure don't see any implied cage here, just bonding of metallic
components if there are any, unless you care to argue (c)(2) can be
satisfied with a cage. Acceptable? Humm... That will vary by ACO.
Ron Q.
Message 22
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Subject: | Re: Off Topic? Scratch build your own autopilot |
Sam Hoskins wrote:
> FYI - I have a very unusual auction going on Ebay for a scratch-build
> autopilot, and a story that goes with it. Here's the auction link:
> http://cgi.ebay.com/ebaymotors/ws/eBayISAPI.dll?ViewItem&item=190225235720
> <http://cgi.ebay.com/ebaymotors/ws/eBayISAPI.dll?ViewItem&item=190225235720>
>
> If that doesn't work just plug 190225235720 into the Ebay search box.
>
> Sorry for the shameless plug.
>
> Sam Hoskins
> Murphysboro, IL
Hey Sam,
I actually have one those that came out of a T-18 (wrecked in a storm)
and there's another in a homebuilt of pre-WW-II Philippine origin here
on my home field.
Unfortunately, I can't find the docs for it. How much to scan & email
the docs?
Charlie
Message 23
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Subject: | Question about wire sizes |
Hi
I am trying to get smart about wiring in my a/c. II understand wire gauge
sizes but am a bit confused about the wire gauge references on connectors.
For example, AMP CPC connectors can take various pin sizes - 24-26ga,
20-24ga, 14-18ga and 16-18ga. Can someone explain the differences between
each pin size? If I was using 18ga wire, which pin size would be
appropriate?
Inquiring minds need to know..
Les Kearney
_____
From: owner-aeroelectric-list-server@matronics.com
[mailto:owner-aeroelectric-list-server@matronics.com] On Behalf Of Sam
Hoskins
Sent: May-26-08 4:40 PM
Subject: AeroElectric-List: Off Topic? Scratch build your own autopilot
FYI - I have a very unusual auction going on Ebay for a scratch-build
autopilot, and a story that goes with it. Here's the auction link:
http://cgi.ebay.com/ebaymotors/ws/eBayISAPI.dll?ViewItem
<http://cgi.ebay.com/ebaymotors/ws/eBayISAPI.dll?ViewItem&item=190225235720>
&item=190225235720
If that doesn't work just plug 190225235720 into the Ebay search box.
Sorry for the shameless plug.
Sam Hoskins
Murphysboro, IL
Message 24
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Subject: | Re: Faraday Cage |
Re: "Faraday cages" on Bellanca aircraft. It does in fact have a tube
structure around the entire fuselage and all components are bonded to each other.
Same as Pipers and Stinsons. It also was grandfathered by being first certified
under CAR 3 pre WW2. Like wise the DC3 does not comply with FAR 25 either.
Grandfathered and still legal. Ya'll be careful around those t-storms in wooden
airplanes and avoid them by 20 miles.
I used to fly a lot of hard IFR in Sikorsky 76's and took a few hits. Its
forward fuselage (with fuel tanks) is a composite structure. Certified under FAR
29. The stroke travels back through the semi monocoque metal aft fuselage,
through the composite hor stabilizer and out through the static wicks. All
composite structures have that mesh stuff imbedded. All structures are bonded to
each other. If not, the radome or the f.g. tail fairing would be blown to little
pieces.
Old Bob
**************
Get trade secrets for amazing burgers. Watch "Cooking
with Tyler Florence" on AOL Food.
(http://food.aol.com/tyler-florence?video=4&?NCID=aolfod00030000000002)
Message 25
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Subject: | Re: Question about wire sizes |
Les,
The nomenclature pertains to the wire gauge to be used with the various
pins not the pins themselves. If is says it is 16-18ga., then that is
the wire size to be used with that pin. In your case you would use pins
marked for 16-18ga.for your 18ga. wire.
If you look at the pins you will see that the pins for the larger wire
gauges (wires with smaller numbers) have a larger hole in which the wire
is inserted and crimped than pins marked for smaller sizes (wires with
larger numbers). This is to assure that you get the proper air tight
crimp on the wire. You will discover that is almost impossible to get a
good crimp on a small wire if you use a pin marked for a larger size
wire.
Dale Ensing
----- Original Message -----
From: Les Kearney
To: aeroelectric-list@matronics.com
Sent: Monday, May 26, 2008 9:39 PM
Subject: AeroElectric-List: Question about wire sizes
Hi
I am trying to get smart about wiring in my a/c. II understand wire
gauge sizes but am a bit confused about the wire gauge references on
connectors. For example, AMP CPC connectors can take various pin sizes -
24-26ga, 20-24ga, 14-18ga and 16-18ga. Can someone explain the
differences between each pin size? If I was using 18ga wire, which pin
size would be appropriate?
Inquiring minds need to know..
Les Kearney
-------------------------------------------------------------------------
-----
From: owner-aeroelectric-list-server@matronics.com
[mailto:owner-aeroelectric-list-server@matronics.com] On Behalf Of Sam
Hoskins
Sent: May-26-08 4:40 PM
To: Aerolectric List
Subject: AeroElectric-List: Off Topic? Scratch build your own
autopilot
FYI - I have a very unusual auction going on Ebay for a scratch-build
autopilot, and a story that goes with it. Here's the auction link:
http://cgi.ebay.com/ebaymotors/ws/eBayISAPI.dll?ViewItem&item=190225235
720
If that doesn't work just plug 190225235720 into the Ebay search
box.
Sorry for the shameless plug.
Sam Hoskins
Murphysboro, IL
http://www.matronics.com/contribution
Message 26
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Subject: | Question about wire sizes |
Les,
It gets even more confusing when you look at the plating options
available and the insulation grip range. The best bet is have the wire specs
available when you collect the part numbers so you can get all three
parameters correct. It's not hard just requires close attention. In the CPC
series there are also multiple contact gauges, the III+ pins are probably
what you will use. In CPC shells there are also reverse shells (pin numbers
mirrored) be carefull.
Ralph Hoover
_____
From: owner-aeroelectric-list-server@matronics.com
[mailto:owner-aeroelectric-list-server@matronics.com] On Behalf Of Les
Kearney
Sent: Monday, May 26, 2008 9:39 PM
Subject: AeroElectric-List: Question about wire sizes
Hi
I am trying to get smart about wiring in my a/c. II understand wire gauge
sizes but am a bit confused about the wire gauge references on connectors.
For example, AMP CPC connectors can take various pin sizes - 24-26ga,
20-24ga, 14-18ga and 16-18ga. Can someone explain the differences between
each pin size? If I was using 18ga wire, which pin size would be
appropriate?
Inquiring minds need to know..
Les Kearney
_____
From: owner-aeroelectric-list-server@matronics.com
[mailto:owner-aeroelectric-list-server@matronics.com] On Behalf Of Sam
Hoskins
Sent: May-26-08 4:40 PM
Subject: AeroElectric-List: Off Topic? Scratch build your own autopilot
FYI - I have a very unusual auction going on Ebay for a scratch-build
autopilot, and a story that goes with it. Here's the auction link:
http://cgi.ebay.com/ebaymotors/ws/eBayISAPI.dll?ViewItem
<http://cgi.ebay.com/ebaymotors/ws/eBayISAPI.dll?ViewItem&item=190225235720>
&item=190225235720
If that doesn't work just plug 190225235720 into the Ebay search box.
Sorry for the shameless plug.
Sam Hoskins
Murphysboro, IL
http://www.matronics.com/contribution
Message 27
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Subject: | Question about wire sizes |
Dale
To clarify, why couldn't I use the 14-18ga pins for the 18ga wire? Do the
pins fit a specific gauge or a range of gauges? If not a range, then what
does 14-18ga mean versus 16-18ga?
Thanks
Les
_____
From: owner-aeroelectric-list-server@matronics.com
[mailto:owner-aeroelectric-list-server@matronics.com] On Behalf Of Dale
Ensing
Sent: May-26-08 8:19 PM
Subject: Re: AeroElectric-List: Question about wire sizes
Les,
The nomenclature pertains to the wire gauge to be used with the various pins
not the pins themselves. If is says it is 16-18ga., then that is the wire
size to be used with that pin. In your case you would use pins marked for
16-18ga.for your 18ga. wire.
If you look at the pins you will see that the pins for the larger wire
gauges (wires with smaller numbers) have a larger hole in which the wire is
inserted and crimped than pins marked for smaller sizes (wires with larger
numbers). This is to assure that you get the proper air tight crimp on the
wire. You will discover that is almost impossible to get a good crimp on a
small wire if you use a pin marked for a larger size wire.
Dale Ensing
----- Original Message -----
From: Les Kearney <mailto:kearney@shaw.ca>
Sent: Monday, May 26, 2008 9:39 PM
Subject: AeroElectric-List: Question about wire sizes
Hi
I am trying to get smart about wiring in my a/c. II understand wire gauge
sizes but am a bit confused about the wire gauge references on connectors.
For example, AMP CPC connectors can take various pin sizes - 24-26ga,
20-24ga, 14-18ga and 16-18ga. Can someone explain the differences between
each pin size? If I was using 18ga wire, which pin size would be
appropriate?
Inquiring minds need to know..
Les Kearney
_____
From: owner-aeroelectric-list-server@matronics.com
[mailto:owner-aeroelectric-list-server@matronics.com] On Behalf Of Sam
Hoskins
Sent: May-26-08 4:40 PM
Subject: AeroElectric-List: Off Topic? Scratch build your own autopilot
FYI - I have a very unusual auction going on Ebay for a scratch-build
autopilot, and a story that goes with it. Here's the auction link:
http://cgi.ebay.com/ebaymotors/ws/eBayISAPI.dll?ViewItem
<http://cgi.ebay.com/ebaymotors/ws/eBayISAPI.dll?ViewItem&item=190225235720>
&item=190225235720
If that doesn't work just plug 190225235720 into the Ebay search box.
Sorry for the shameless plug.
Sam Hoskins
Murphysboro, IL
http://www.matronics.com/contribution
href="http://www.matronics.com/Navigator?AeroElectric-List">http://www.matro
nics.com/Navigator?AeroElectric-List
href="http://forums.matronics.com">http://forums.matronics.com
href="http://www.matronics.com/contribution">http://www.matronics.com/c
Message 28
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Subject: | Re: Question about wire sizes |
Les;
The pins fit wires within the range marked on them. 16-18 ga pins fit
wires of 16 or 18 (or 17 if you can find it) gauge. A 14-18 ga pin would
fit 14, 16, or 18 gauge wires. (also 15 or 17 if you could find them)
(Wire gauges normally change by 2's hence 14, 16, 18 etc, but in rare
special cases sometimes the intermediate sizes are made. You'll likely
never find any so don't worry about it.)
Bob McC
----- Original Message -----
From: Les Kearney
To: aeroelectric-list@matronics.com
Sent: Tuesday, May 27, 2008 12:21 AM
Subject: RE: AeroElectric-List: Question about wire sizes
Dale
To clarify, why couldn't I use the 14-18ga pins for the 18ga wire? Do
the pins fit a specific gauge or a range of gauges? If not a range, then
what does 14-18ga mean versus 16-18ga?
Thanks
Les
-------------------------------------------------------------------------
-----
From: owner-aeroelectric-list-server@matronics.com
[mailto:owner-aeroelectric-list-server@matronics.com] On Behalf Of Dale
Ensing
Sent: May-26-08 8:19 PM
To: aeroelectric-list@matronics.com
Subject: Re: AeroElectric-List: Question about wire sizes
Les,
The nomenclature pertains to the wire gauge to be used with the
various pins not the pins themselves. If is says it is 16-18ga., then
that is the wire size to be used with that pin. In your case you would
use pins marked for 16-18ga.for your 18ga. wire.
If you look at the pins you will see that the pins for the larger wire
gauges (wires with smaller numbers) have a larger hole in which the wire
is inserted and crimped than pins marked for smaller sizes (wires with
larger numbers). This is to assure that you get the proper air tight
crimp on the wire. You will discover that is almost impossible to get a
good crimp on a small wire if you use a pin marked for a larger size
wire.
Dale Ensing
----- Original Message -----
From: Les Kearney
To: aeroelectric-list@matronics.com
Sent: Monday, May 26, 2008 9:39 PM
Subject: AeroElectric-List: Question about wire sizes
Hi
I am trying to get smart about wiring in my a/c. II understand wire
gauge sizes but am a bit confused about the wire gauge references on
connectors. For example, AMP CPC connectors can take various pin sizes -
24-26ga, 20-24ga, 14-18ga and 16-18ga. Can someone explain the
differences between each pin size? If I was using 18ga wire, which pin
size would be appropriate?
Inquiring minds need to know..
Les Kearney
-------------------------------------------------------------------------
---
From: owner-aeroelectric-list-server@matronics.com
[mailto:owner-aeroelectric-list-server@matronics.com] On Behalf Of Sam
Hoskins
Sent: May-26-08 4:40 PM
To: Aerolectric List
Subject: AeroElectric-List: Off Topic? Scratch build your own
autopilot
FYI - I have a very unusual auction going on Ebay for a
scratch-build autopilot, and a story that goes with it. Here's the
auction link:
http://cgi.ebay.com/ebaymotors/ws/eBayISAPI.dll?ViewItem&item=190225235
720
If that doesn't work just plug 190225235720 into the Ebay search
box.
Sorry for the shameless plug.
Sam Hoskins
Murphysboro, IL
http://www.matronics.com/contribution
href="http://www.matronics.com/Navigator?AeroElectric-List">http://www.
matronics.com/Navigator?AeroElectric-Listhref="http://forums.matronics.
com">http://forums.matronics.comhref="http://www.matronics.com/contribu
tion">http://www.matronics.com/c http://www.matronics.com/contribution
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