Today's Message Index:
----------------------
1. 05:20 AM - Stereo to Mono ()
2. 05:42 AM - Must-Have Tool Tip ()
3. 08:08 AM - Re: Engine mount as starter ground path (johngoodman)
4. 08:27 AM - AECr12 goes to press . . . (Robert L. Nuckolls, III)
5. 08:28 AM - Re: Re: Engine mount as starter ground path (Robert L. Nuckolls, III)
6. 09:26 AM - Re: AECr12 goes to press . . . (Matt Prather)
7. 07:27 PM - Bonding for Fueling (Paul Millner [OAK])
8. 08:49 PM - sky-tec starter wiring (thomas sargent)
Message 1
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5/30/2009
Hello Don, You wrote: "I want to install a plug in my panel to plug my
stereo Walkman into but my intercom (PM1000 II) is mono."
Here is one way to solve that problem --
http://www.radioshack.com/product/index.jsp?productId=2102669
This adapter will put the output of a mono jack on your panel into both
sides of your stereo Walkman.
Also take a look at some of the other adapters available. You may want to
put a normal airplane earphone sized jack on your instrument panel so that
either your Walkman (with an adapter) or an airplane earphone set (without
adapter) may be plugged in.
'OC' Says: "The best investment we can make is the effort to gather and
understand knowledge."
=====================================================
Subject: AeroElectric-List: Stereo to Mono
From: "Don McIntosh" <don@contractorsnorthwest.com>
I want to install a plug in my panel to plug my stereo Walkman into but my
intercom
(PM1000 II) is mono. Can I just splice the Right and Left leads together
to go into the intercom? Also the intercom pins are labeled "HI" and "LOW".
Is
this just the pin identification numbers?
--------
Don McIntosh
Kitfox Series 7 under construction
Jabiru 3300
Message 2
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Subject: | Must-Have Tool Tip |
5/30/2009
Hello Matt, Thanks for your tool tip. Here is another tip that you can
distribute to the RV people if you will (I am not on their lists).
Where ever possible abandon those abominable Phillips drive machine screws.
Instead use Torx (six lobe) drive machine screws.
Every builder who has done this has thanked me profusely for the suggestion.
Torx drive inserts are readily available and with an electric cordless screw
driver are very quick and effective -- vastly superior to Phillips drive.
You can obtain Torx drive screws in a variety of sizes from Microfasteners.
See here:
http://www.microfasteners.com/catalog/products/SSCFCMXS.cfm
(Note that these flat head screws have a true aviation use 100 degree
countersink angle, not the common hardware store 82 degree countersink
angle)
and here:
http://www.microfasteners.com/catalog/products/SSCSBXS.cfm
'OC' Says: "The best investment we can make is the effort to gather and
understand knowledge."
PS: Thanks again Matt for making the Matronics lists available to us -- they
are of great value.
=============================================
Time: 08:32:38 PM PST US
From: Matt Dralle <dralle@matronics.com>
Subject: RV12-List: Must-Have Tool Tip...
Dear Listers,
I don't know, maybe everyone but me already knew about this little gem of a
tool,
but in case you missed it, I thought I share. If you don't have one of
these,
run - don't walk - down to your local Home Depot or Ace Hardware store and
get one! All of those #8 screws in the RVs are a giant pain to work in and
out
and some are just impossible to get to. I've been using this little guy on
the RV-8 project and can't image not having it now. The bendable shaft is
really
strong and you can bend the heck out of it without impacting the torque.
Its about $13 at Home Depot which is a great deal considering how handy it
is.
Here's a link to it on the Ace Hardware web page. I also attached a picture
of
mine attached to my Dewalt electric screw driver.
http://www.acehardware.com/sm-eazypower-flex-a-bit-plus-eazypower-flex-a-bit-plus--pi-2467822.html
Best regards,
Matt Dralle
RV-8 #82880 N998RV
Message 3
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Subject: | Re: Engine mount as starter ground path |
Maybe Bob can address this point:
Bill might be able to use the 8awg wire separately. If the battery is grounded
to the airframe right next to itself, and the starter is grounded to the firewall,
then the starter is taken care of.
The forest of tabs is most likely common to that firewall ground mentioned above.
These would be used for grounding avionics, etc.
The 8awg wire he has already pulled (a long and difficult task in an RV-10) could
be used for an "always hot bus". Attach it to the battery in back, and put
a fuse block at the panel end. One wire instead of a handful of small ones. He
can then pull out the small wires to be used elsewhere. He probably already has
the fuse block for the hot bus next to the battery - just move it. No waste
of 8awg wire. Just a suggestion, but I like it so much, I might do it myself.
John
--------
#40572 QB Fuselage, wings finished. Finish Kit started.
N711JG reserved
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=246031#246031
Message 4
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Subject: | AECr12 goes to press . . . |
The long promised reprint of the AeroElectric Connection,
revision 12 went to press yesterday. The long delay was
unfortunate but economically worthwhile. I've located
a print shop that not only offered an attractive price
but is reasonable driving distance away so that I can
pick the order up and avoid freight charges on about
3,000 pounds of paper!
I'm supposed to have proofs early next week and assuming
no big gottchas are identified, books to ship about 3
weeks after that. We're printing 2000 books . . . twice
that of our usual print-run.
R13 should be another milestone in 'Connection history.
I've purchased a suite of desktop publishing software
and will being molding 20 years and 4 different word
processor outputs into a single, cohesive, print-ready file.
I'm planning on several new chapters in addition to complete
review of all existing work. This issue is 304 pages,
the next will probably be 335 or so.
My thanks to those who helped me comb the worst of
the errors out of the latest changes.
Bob . . .
----------------------------------------)
( . . . a long habit of not thinking )
( a thing wrong, gives it a superficial )
( appearance of being right . . . )
( )
( -Thomas Paine 1776- )
----------------------------------------
Message 5
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Subject: | Re: Engine mount as starter ground path |
At 10:06 AM 5/30/2009, you wrote:
><johngoodman@earthlink.net>
>
>Maybe Bob can address this point:
>
>Bill might be able to use the 8awg wire separately. If the battery
>is grounded to the airframe right next to itself, and the starter is
>grounded to the firewall, then the starter is taken care of.
>
>The forest of tabs is most likely common to that firewall ground
>mentioned above. These would be used for grounding avionics, etc.
>
>The 8awg wire he has already pulled (a long and difficult task in an
>RV-10) could be used for an "always hot bus". Attach it to the
>battery in back, and put a fuse block at the panel end.
Remotely mounting an always-hot bus is not
recommended. Legacy crash safety conventions
make this simply another remote bus that is
worthy of a battery contactor . . . not ulike
the robust e-bus feeder described in the Z-figures.
> One wire instead of a handful of small ones. He can then pull out
> the small wires to be used elsewhere. He probably already has the
> fuse block for the hot bus next to the battery - just move it. No
> waste of 8awg wire. Just a suggestion, but I like it so much, I
> might do it myself.
>
>John
I've been noodling through some recommendations
for the rear-battery configuration of the RV10.
I'm packed up to head out for M.L. right now so
I don't have time to elaborate.
Bob . . .
----------------------------------------)
( . . . a long habit of not thinking )
( a thing wrong, gives it a superficial )
( appearance of being right . . . )
( )
( -Thomas Paine 1776- )
----------------------------------------
Message 6
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Subject: | Re: AECr12 goes to press . . . |
Cool! It's not being printed in China! :)
Matt-
do not archive
> <nuckolls.bob@aeroelectric.com>
>
> The long promised reprint of the AeroElectric Connection,
> revision 12 went to press yesterday. The long delay was
> unfortunate but economically worthwhile. I've located
> a print shop that not only offered an attractive price
> but is reasonable driving distance away so that I can
> pick the order up and avoid freight charges on about
> 3,000 pounds of paper!
>
> I'm supposed to have proofs early next week and assuming
> no big gottchas are identified, books to ship about 3
> weeks after that. We're printing 2000 books . . . twice
> that of our usual print-run.
>
> R13 should be another milestone in 'Connection history.
> I've purchased a suite of desktop publishing software
> and will being molding 20 years and 4 different word
> processor outputs into a single, cohesive, print-ready file.
> I'm planning on several new chapters in addition to complete
> review of all existing work. This issue is 304 pages,
> the next will probably be 335 or so.
>
> My thanks to those who helped me comb the worst of
> the errors out of the latest changes.
>
>
> 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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Subject: | Bonding for Fueling |
>> how does one get lineboys trained that the engine exhaust pipe is a
terrible place for ground wire
Remember, it's not at all important to GROUND an aircraft for fueling.
What *is* important is to BOND the aircraft to the fuel source, so that
static charges created by the dielectric fluid called gasoline moving
through the fueling equipment don't result in a spark at the nozzle.
And... what Bob said about the size of the currents involved.
Call it bonding, not grounding.
Paul
Message 8
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Subject: | sky-tec starter wiring |
Sky-Tec advises against the use of a starter relay, while Bob K.
advocates the use of one (for good reason, as I recall). I have a
separate starter relay in my plane. A couple years ago the Sky-Tec
website had an example schematic for hooking up one of their starters
with a separate starter relay. I had a copy of that, but now I can't
find it and they seem to have removed it from their website.
I believe it showed a jumper between the large +12v terminal and the
small terminal on the starter. Does any one have a copy of that
schematic?
Thanks,
--
Tom Sargent, RV-6A, final assembly.
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