Today's Message Index:
----------------------
1. 03:43 AM - Re: Automotive Spark Plugs (William Slaughter)
2. 04:53 AM - Re: Horse Power? (Alex Peterson)
3. 06:21 AM - Re: Automotive Spark Plugs (Scott Bilinski)
4. 07:23 AM - Re: Just wondering....(28-12V radio conversions) (Eric M. Jones)
5. 07:57 AM - Re: Re: Just wondering....(28-12V radio conversions) (Matt Prather)
6. 08:13 AM - Re: Automotive Spark Plugs (Erie Patsellis)
7. 08:24 AM - Re: Re: Just wondering....(28-12V radio conversions) (Tammy and Mike Salzman)
8. 08:45 AM - Unacceptable Aircraft Radios (Robert L. Nuckolls, III)
9. 08:51 AM - Battery failure modes? (Chad Robinson)
10. 09:45 AM - Re: Re: Just wondering....(28-12V radio conversions) (Alex Peterson)
11. 09:51 AM - 28-12V radio conversions) (hausding, sid)
12. 12:05 PM - 28-12V radio conversions) (hausding, sid)
13. 01:08 PM - Re: Unacceptable Aircraft Radios (SportAV8R@aol.com)
14. 02:42 PM - Re: Automotive Spark Plugs (Dale Martin)
15. 05:00 PM - Re: Automotive Spark Plugs (Kent Ashton)
16. 11:31 PM - Electric Trim Switches (Troy Scott)
Message 1
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| Subject: | Automotive Spark Plugs |
--> AeroElectric-List message posted by: "William Slaughter" <willslau@alumni.rice.edu>
When comparing anecdotal reports of auto plug life, remember that all
auto plugs are not created equal. The Bosch Platinum tip plugs have a
much longer service life than conventional plugs. Similarly, the
AC-Delco platinum tip plugs in my '96 Impala SS go 100,000 miles between
changes. Obviously, these plugs cost more than generic units, but are
still much cheaper than the aviation sparkplugs.
William Slaughter
RV-8
Houston
-----Original Message-----
From: owner-aeroelectric-list-server@matronics.com
[mailto:owner-aeroelectric-list-server@matronics.com] On Behalf Of
Speedy11@aol.com
Subject: AeroElectric-List: Automotive Spark Plugs
--> AeroElectric-List message posted by: Speedy11@aol.com
In a message dated 4/19/2004 2:56:56 AM Eastern Daylight Time,
aeroelectric-list-digest@matronics.com writes:
> No more $$$ aviation spark plugs for me
Mark said he's using two EIs and thus using all auto spark plugs. I
talked
to an engine builder at SnF who said the auto plugs are not holding up
as well
as the aviation plugs. Does anyone have several hundred hours of flying
on
auto plugs to substantiate or refute the claim?
Stan Sutterfield
RV-8A
Tampa
==
direct advertising on the Matronics Forums.
==
==
==
Message 2
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--> AeroElectric-List message posted by: "Alex Peterson" <alexpeterson@earthlink.net>
> --> AeroElectric-List message posted by: Mcculleyja@aol.com
>
> Alex,
>
> On the assumption you are probably looking for a reasonably
> accurate way to
> determine the percentage of engine maximum continuous rated
> horsepower during
> flight using the RPM, and MAP (manifold pressure) that you
> Jim McCulley
> Tailwind
Jim, thanks. However, I was not the person looking for the information,
some erroneous cutting and pasting makes it look that way!
I don't know how well the formula fits the curves, leaning would be a
major factor. Simply leaning within a few percent takes very careful
work. I believe that the correction for temperature should be about 2%
for each 10F degrees, though. (divide 470 degrees R by 460 degrees R,
and you get about 1.02, for example)
Alex Peterson
Maple Grove, MN
RV6-A N66AP 458 hours
http://www.home.earthlink.net/~alexpeterson/
Message 3
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| Subject: | Re: Automotive Spark Plugs |
--> AeroElectric-List message posted by: Scott Bilinski <bilinski@kyocera-wireless.com>
What exactly does that mean "not holding up as well as the aviation plugs".
They dont last 800, 500, or even 300 hours? I have duall EI with 103 hrs,
everything fine to date, and just plan to change the plugs when ever I dont
like what I see. That will cost me about 20~25 bucks for all 8. Actually to
get technical they are motorcycle spark plugs.
At 09:25 PM 4/20/04 -0400, you wrote:
>--> AeroElectric-List message posted by: Speedy11@aol.com
>
>In a message dated 4/19/2004 2:56:56 AM Eastern Daylight Time,
>aeroelectric-list-digest@matronics.com writes:
>
>> No more $$$ aviation spark plugs for me
>
>Mark said he's using two EIs and thus using all auto spark plugs. I talked
>to an engine builder at SnF who said the auto plugs are not holding up as
well
>as the aviation plugs. Does anyone have several hundred hours of flying on
>auto plugs to substantiate or refute the claim?
>
>Stan Sutterfield
>RV-8A
>Tampa
>
>
Scott Bilinski
Eng dept 305
Phone (858) 657-2536
Pager (858) 502-5190
Message 4
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| Subject: | RE: Just wondering....(28-12V radio conversions) |
--> AeroElectric-List message posted by: "Eric M. Jones" <emjones@charter.net>
--> AeroElectric-List message posted by: "hausding, sid" <sidh@charter.net>
>If I buy a 28 volt comm radio how can it be utilized in a 12 volt system?
>What needs to be done to the 12 volt system to power the radio, or can the
>radio be "fixed" to detune it to the existing system?
Of course it can be modified, depending on the details.
It can also be powered by a 12-28V DC-DC converter depemding on the current.
But posting it on eBay and buying a 12V unit on eBay might well be the best
possible choice. I have usually found this to be true.
Search "aircraft
radio -collection -handheld -hitec -futaba -control -controlled -hobby." The
search string is needed to filter out those pesky R/C guys' stuff. You may
refine this further. Try the same search on Google too.
BOB: What is this http://wireless.fcc.gov/aviation/badlst.html List of
Unacceptable Aircraft Radios???
Regards,
Eric M. Jones
www.PerihelionDesign.com
113 Brentwood Drive
Southbridge MA 01550-2705
Phone (508) 764-2072
Email: emjones@charter.net
Teamwork: "A lot of people doing exactly what I say."
(Marketing exec., Citrix Corp.)
Message 5
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| Subject: | Re: RE: Just wondering....(28-12V radio conversions) |
--> AeroElectric-List message posted by: "Matt Prather" <mprather@spro.net>
Hi Eric,
> --> AeroElectric-List message posted by: "Eric M. Jones"
> <emjones@charter.net>
>
snip
>
> BOB: What is this http://wireless.fcc.gov/aviation/badlst.html List of
> Unacceptable Aircraft Radios???
I think these are all 360 channel comms, and don't satisfy the 720
channel requirement.
>
> Regards,
> Eric M. Jones
> www.PerihelionDesign.com
> 113 Brentwood Drive
> Southbridge MA 01550-2705
> Phone (508) 764-2072
> Email: emjones@charter.net
>
> Teamwork: "A lot of people doing exactly what I say."
> (Marketing exec., Citrix Corp.)
>
>
Matt-
N34RD
Message 6
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| Subject: | Re: Automotive Spark Plugs |
--> AeroElectric-List message posted by: Erie Patsellis <erie@shelbyvilledesign.com>
as a point of reference..
Bosch platinums (small electrode) last about .5 hours before they're
undrivable in my Audi 200 Turbo Quattro.
The large platinum electrode plugs last quite a bit longer, but they
make aircraft plugs look cheap.
The Bosch WR(x)-DTC plugs are a triple ground electrode plug and they
last 50,000 + miles.
erie
William Slaughter wrote:
>--> AeroElectric-List message posted by: "William Slaughter" <willslau@alumni.rice.edu>
>
>When comparing anecdotal reports of auto plug life, remember that all
>auto plugs are not created equal. The Bosch Platinum tip plugs have a
>much longer service life than conventional plugs. Similarly, the
>AC-Delco platinum tip plugs in my '96 Impala SS go 100,000 miles between
>changes. Obviously, these plugs cost more than generic units, but are
>still much cheaper than the aviation sparkplugs.
>
>William Slaughter
>RV-8
>Houston
>
>-----Original Message-----
>From: owner-aeroelectric-list-server@matronics.com
>[mailto:owner-aeroelectric-list-server@matronics.com] On Behalf Of
>Speedy11@aol.com
>To: aeroelectric-list@matronics.com
>Subject: AeroElectric-List: Automotive Spark Plugs
>
>
>--> AeroElectric-List message posted by: Speedy11@aol.com
>
>In a message dated 4/19/2004 2:56:56 AM Eastern Daylight Time,
>aeroelectric-list-digest@matronics.com writes:
>
>
>
>>No more $$$ aviation spark plugs for me
>>
>>
>
>Mark said he's using two EIs and thus using all auto spark plugs. I
>talked
>to an engine builder at SnF who said the auto plugs are not holding up
>as well
>as the aviation plugs. Does anyone have several hundred hours of flying
>on
>auto plugs to substantiate or refute the claim?
>
>Stan Sutterfield
>RV-8A
>Tampa
>
>
>==
>direct advertising on the Matronics Forums.
>==
>==
>==
>
>
>
>
Message 7
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| Subject: | Re: RE: Just wondering....(28-12V radio conversions) |
--> AeroElectric-List message posted by: Tammy and Mike Salzman <arrow54t@yahoo.com>
You can buy a converter on ebay for this purpose.
http://cgi.ebay.com/ebaymotors/ws/eBayISAPI.dll?ViewItem&category=26436&item=2474906506&rd=1
Mike Salzman
Fairfield, CA
LNCE
--- "Eric M. Jones" <emjones@charter.net> wrote:
> --> AeroElectric-List message posted by: "Eric M. Jones"
> <emjones@charter.net>
>
>
> --> AeroElectric-List message posted by: "hausding, sid"
> <sidh@charter.net>
>
> >If I buy a 28 volt comm radio how can it be utilized in a 12 volt
> system?
> >What needs to be done to the 12 volt system to power the radio, or
> can the
> >radio be "fixed" to detune it to the existing system?
>
> Of course it can be modified, depending on the details.
> It can also be powered by a 12-28V DC-DC converter depemding on the
> current.
...........
Message 8
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| Subject: | Unacceptable Aircraft Radios |
--> AeroElectric-List message posted by: "Robert L. Nuckolls, III" <bob.nuckolls@cox.net>
>
>
>BOB: What is this http://wireless.fcc.gov/aviation/badlst.html List of
>Unacceptable Aircraft Radios???
Yup, frequency tolerances had to be tightened up when the FAA
in it's infinite wisdom decided that the way to get more spectrum
space for airplane folks to talk to each other was to slice
the spectrum into smaller pieces (watch for 8.333 Khz channel
spacing to become the 'in' thing). Radios on the list
are too loose for frequency tolerance and perhaps for
transmitted sidebands width as well.
So while we can acquire huge communications technology and
capability in the form pocket sized FREE radios from
cell phone companies the folks-who-know-more-about-
airplanes-than-we-do keep putting Band-Aids on the
1950's, high-dollar technology we're forced to install
in our airplanes. In the mean time, thousands of
otherwise working radios are useless by decree so
that government can minimize their costs of channel
compaction while loading the users with costs for
radios that will perform no better than the radios
that got trashed.
Aviation is the last bastion of AM communications
left on the surface of the planet.
Bob . . .
Message 9
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| Subject: | Battery failure modes? |
--> AeroElectric-List message posted by: Chad Robinson <crobinson@rfgonline.com>
What types of failures can occur to a battery in flight, assuming various
alternator conditions? Does anybody have a list of failure modes?
Regards,
Chad
Message 10
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| Subject: | RE: Just wondering....(28-12V radio conversions) |
--> AeroElectric-List message posted by: "Alex Peterson" <alexpeterson@earthlink.net>
>
> >If I buy a 28 volt comm radio how can it be utilized in a 12 volt
> >system? What needs to be done to the 12 volt system to power
> the radio,
> >or can the radio be "fixed" to detune it to the existing system?
What kind of radio is it? Some simply need to be wired appropriately
for the voltage.
Alex Peterson
Maple Grove, MN
RV6-A N66AP 458 hours
http://www.home.earthlink.net/~alexpeterson/
Message 11
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| Subject: | 28-12V radio conversions) |
--> AeroElectric-List message posted by: "hausding, sid" <sidh@charter.net>
Thank you for the comments and the links to the "how to" answers. I had
hoped the 28 volt radios would not be desirable for the general public, and
I could get one cheaper than normal for the 12 volt listings...........alas,
not true. Seems everybody is out looking for a cheap comm for their
homebuilt this spring. The attractive pricing has all escalated to beyond
what I would call a good deal.
shucks........
Sid
-----------------------------
You can buy a converter on ebay for this purpose.
http://cgi.ebay.com/ebaymotors/ws/eBayISAPI
dll?ViewItem&category=26436&item=2474906506&rd=1
-------------------------------------------------
> >If I buy a 28 volt comm radio how can it be utilized in a 12 volt
> system?
Message 12
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| Subject: | 28-12V radio conversions) |
--> AeroElectric-List message posted by: "hausding, sid" <sidh@charter.net>
There are a couple of high end King comm radios on ebay, but the price has
gone sky high since I found them and had the question. I shall continue to
try to win the lotto and get a new Micro Air, or an older Terra, S-Tec, or
Becker, in 12 volts.........want to keep it light, and really don't have a
lot of panel space for full size comm, or nav/comm, and then the transponder
too.........my project is an Avid Speedwing and the Avids have small panels
for basic VFR only........
Sid
--------------------
If I buy a 28 volt comm radio how can it be utilized in a 12 volt
system? What needs to be done to the 12 volt system to power
the radio,
or can the radio be "fixed" to detune it to the existing system?
What kind of radio is it? Some simply need to be wired appropriately
for the voltage.
Alex Peterson
Maple Grove, MN
RV6-A N66AP 458 hours
http://www.home.earthlink.net/~alexpeterson/
Message 13
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| Subject: | Re: Unacceptable Aircraft Radios |
--> AeroElectric-List message posted by: SportAV8R@aol.com
In a message dated 4/21/2004 11:42:31 AM Eastern Daylight Time, bob.nuckolls@cox.net
writes:
> Aviation is the last bastion of AM communications
> left on the surface of the planet.
>
> Bob . . .
Well, ignoring Children's Band, that is true ;-) And what a great place aviation
would be for Amplitude-Compandored Single Side-Band or narrow band FM. Looking
at the cost of full-featured VHF amateur rigs, there's no excuse for aircraft
radios to sell (new) at above 40% of their current street prices /soapbox
off/
-Bill B
Message 14
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| Subject: | Re: Automotive Spark Plugs |
--> AeroElectric-List message posted by: "Dale Martin" <niceez@cableone.net>
Stan,
With 319 hours experience with an LSE CDI system and also fouled motorcycle
plugs (yes that's right - fouled plugs) every 50 to 75 hours. The magneto
would run smoother then the E.I. system during this. After more research we
find that the truth was not told by the LSE about the proper choice of
plugs. I should have been using REM 37BY's (the spark plug that was
developed specifically for my engine) just like I do for the magneto.
Those who I've spoke with say they get 800 to 900 hours out of there
aircraft spark plugs. Having used the triple ground arm plugs from
NippenDenso plugs (LSE want $15 per plug) I can say they work a little
better but they still would foul during a run-up after 40 25 hours and this
was due to carbon deposits the 235L2C is known for -(my best guess anyway).
Most interesting is they were all on top and the aircraft REM 37BY plugs and
magneto fired all the bottom plugs and ran smooth. Best wishes to LSE
however I have switched to Electro-Air's E.I. which recommends Aircraft
plugs or the 386 plugs that fit into the standard aircraft cylinder head.
You owe it to yourself to speak with Jeff Rose of Electro-Air if your
airplane use's a starter. He recommends against hand propping for those
with dual E.I.'s. His system already has the "longer duration spark" that
LSE wants more $$$ for and use's a 60 tooth wheel to make timing adjustments
every 12 verses the once every 360 (or 720) of the LSE system. They both
use manifold pressure & electronics to retard or advance the timing.
Delivered price for me was $820. You can also get the optional tach and
Optional display that shows the amount of Advance. The plans on Electro air
also allow the installer to put in a switch to force the unit to fire After
TDC for starting. (Jeff told me the unit will not fire until it registers
25 RPM and so that is why hand-propping is still a no go). The lack of
engine manifold pressure should however bring it to around 5 before TDC for
starting.
As I stated, these are my experience's - Hope this helps,
Dale Martin
Lewiston, ID
LEZ-235
----- Original Message -----
From: <Speedy11@aol.com>
Subject: AeroElectric-List: Automotive Spark Plugs
> --> AeroElectric-List message posted by: Speedy11@aol.com
>
> In a message dated 4/19/2004 2:56:56 AM Eastern Daylight Time,
> aeroelectric-list-digest@matronics.com writes:
>
> > No more $$$ aviation spark plugs for me
>
> Mark said he's using two EIs and thus using all auto spark plugs. I
talked
> to an engine builder at SnF who said the auto plugs are not holding up as
well
> as the aviation plugs. Does anyone have several hundred hours of flying
on
> auto plugs to substantiate or refute the claim?
>
> Stan Sutterfield
> RV-8A
> Tampa
>
>
Message 15
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| Subject: | Re: Automotive Spark Plugs |
--> AeroElectric-List message posted by: Kent Ashton <kjashton@vnet.net>
I've run ordinary NGK and Nippodenso plugs top and bottom on a dual LSE
O-360 and never had any problems. I change them out every other year and
always lean aggresively during ground ops and below 75%.
--Kent
Cozy Mk IV
Message 16
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| Subject: | Electric Trim Switches |
--> AeroElectric-List message posted by: "Troy Scott" <tscott1217@bellsouth.net>
Gentlemen,
I plan to have electric trim controls on the stick(s). These will need
relays, since the switches are small and the currents large. I also plan to
install either a pullable breaker or switch as Electric Trim Interrupt. I'm
thinking it might also be good to have a direct (no relays) means of
controlling the trim motors. I'm thinking of installing a pair of
(ON)-none-(ON) rocker switches on the console. Is this commonly done? Or do
most of you choose either stick-mounted controls or console-mounted
controls, but not both? What about stick-mounted controls on the pilot's
side only and console mounted controls for when the passenger/pilot takes
the controls? What about a "take control" switch to determine which set of
trim controls works....., is this necessary?
Regards,
Troy
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