Today's Message Index:
----------------------
1. 06:36 AM - Re: Ps Engineering intercom noise (n801bh@netzero.com)
2. 10:02 AM - re;Tefzel cables and d-sub connectors (jim-bean@att.net)
3. 11:01 AM - Re: Ps Engineering intercom noise (Charlie England)
4. 11:26 AM - New consumer product battery (Robert L. Nuckolls, III)
5. 12:03 PM - Re: AeroElectric- Batteries (Kevin Boddicker)
6. 02:34 PM - Re: Ps Engineering intercom noise (n801bh@netzero.com)
7. 07:31 PM - Batteries.com AA Alkaline Cell Tests (Robert L. Nuckolls, III)
8. 07:31 PM - Re: Re: AeroElectric- Batteries (Robert L. Nuckolls, III)
9. 08:16 PM - Re: Batteries.com AA Alkaline Cell Tests (Ron Quillin)
10. 08:21 PM - Re: Wilco STC for concorde batteries ()
11. 10:16 PM - Re: Batteries.com AA Alkaline Cell Tests (Robert L. Nuckolls, III)
12. 10:17 PM - Re: Ps Engineering intercom noise (Robert L. Nuckolls, III)
13. 10:21 PM - Re: Batteries.com AA Alkaline Cell Tests (Robert L. Nuckolls, III)
Message 1
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Subject: | Re: Ps Engineering intercom noise |
Guys, I have a Ps 1000ll in my experimental and it has worked flawlessly
for three years. On my last couple of flights there is an annoying nois
e when i use the intercom between the pilot and co pilot. Some facts..
The plane is quite noisy. mostly due to the V-8 Ford up front. ya it has
mufflers but...
When I call ATC they say my transmissions are clear and noise free.
This only happens at high noise levels in the cockpit, on the ground or
throttled back the intercom works great.
I use Lightspeed 20-3G's for headphones and it happens with ANR either o
n or off.
Any ideas guys???
Ben Haas
N801BH
www.Haaspowerair.com
-Matt Dralle, List Admin.
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Message 2
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Subject: | re;Tefzel cables and d-sub connectors |
I used a DB-9 for the 5 wire servo cable. On my RV-8 it is mounted just in front
of the stabilizer spar on the flat surface just below the rudder. A flexible
cable comes from the serve, along the elevator spar. This makes it easy to remove
the horizontal if you need to.
Jim Bean
Message 3
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Subject: | Re: Ps Engineering intercom noise |
n801bh@netzero.com wrote:
> Guys, I have a Ps 1000ll in my experimental and it has worked flawlessly
> for three years. On my last couple of flights there is an annoying noise
> when i use the intercom between the pilot and co pilot. Some facts..
>
> The plane is quite noisy. mostly due to the V-8 Ford up front. ya it has
> mufflers but...
>
> When I call ATC they say my transmissions are clear and noise free.
>
> This only happens at high noise levels in the cockpit, on the ground or
> throttled back the intercom works great.
>
> I use Lightspeed 20-3G's for headphones and it happens with ANR either
> on or off.
>
> Any ideas guys???
>
> Ben Haas
> N801BH
> www.Haaspowerair.com <http://www.Haaspowerair.com>
What is the nature of the 'annoying noise'? Is it electronic in nature,
or just very loud airplane noise?
This might not be relevant, but what's the condition of the ear pads on
the Lightspeeds? If the slick-feeling 'skins' on the ear muffs (at least
on my older 15XL's) are cracked and/or peeling, it totally destroys the
noise reduction ability of the headset.
Charlie
Message 4
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Subject: | New consumer product battery |
Doing some house maintenance this weekend and during
a trip to Home Depot for some parts and supplies, I
was "sucked in" by a Black and Decker "VPX Power" display
at the checkout stand.
http://www.vpxsystem.com/
The battery for this new line of cordless power tools
http://www.aeroelectric.com/Pictures/Battery/Black_and_Decker/VPX_Battery_1.jpg
is LiIon and the battery on display was advertised at 7 volts.
A very compact critter . . .
http://www.aeroelectric.com/Pictures/Battery/Black_and_Decker/VPX_Charger_F1.jpg
but no place on the packaging (or later on the 'net)
was I able to discover the capacity of this device.
Sooooo . . . keeping Lord Kelvin's admonition about
numbers in mind, I purchased a battery/charger
combination to do some testing.
I've got the battery on charge right now. Will cap-test
it later today and report the results. This product
(or a pair of them) might offer some interesting
solutions to brown-out protection and/or small
back-up batteries. Watch this space.
In the mean time, I'll get back to making little
piles of sawdust and drill chips.
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: AeroElectric- Batteries |
Bob,
A week or two back I sent you two AA cells to test. Have you had time
to do so?
Just curious to find out if I made a good purchase or not.
Kevin Boddicker
Tri Q 200 N7868B 79.4 hours
Luana, IA.
On Nov 23, 2007, at 1:25 PM, Robert L. Nuckolls, III wrote:
> <nuckolls.bob@cox.net>
>
> Doing some house maintenance this weekend and during
> a trip to Home Depot for some parts and supplies, I
> was "sucked in" by a Black and Decker "VPX Power" display
> at the checkout stand.
>
> http://www.vpxsystem.com/
>
> The battery for this new line of cordless power tools
>
> http://www.aeroelectric.com/Pictures/Battery/Black_and_Decker/
> VPX_Battery_1.jpg
>
> is LiIon and the battery on display was advertised at 7 volts.
>
> A very compact critter . . .
>
> http://www.aeroelectric.com/Pictures/Battery/Black_and_Decker/
> VPX_Charger_F1.jpg
>
> but no place on the packaging (or later on the 'net)
> was I able to discover the capacity of this device.
> Sooooo . . . keeping Lord Kelvin's admonition about
> numbers in mind, I purchased a battery/charger
> combination to do some testing.
>
> I've got the battery on charge right now. Will cap-test
> it later today and report the results. This product
> (or a pair of them) might offer some interesting
> solutions to brown-out protection and/or small
> back-up batteries. Watch this space.
>
> In the mean time, I'll get back to making little
> piles of sawdust and drill chips.
>
>
> 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: Ps Engineering intercom noise |
It is very loud airplane noise, as if the mics are picking up cabin so
unds, I am going to crawl under the panel this afternoon and check conne
ctions... Thanks for responding..
Ben Haas
N801BH
www.haaspowerair.com
-- Charlie England <ceengland@bellsouth.net> wrote:
south.net>
n801bh@netzero.com wrote:
> Guys, I have a Ps 1000ll in my experimental and it has worked flawless
ly
> for three years. On my last couple of flights there is an annoying noi
se
> when i use the intercom between the pilot and co pilot. Some facts..
>
> The plane is quite noisy. mostly due to the V-8 Ford up front. ya it h
as
> mufflers but...
>
> When I call ATC they say my transmissions are clear and noise free.
>
> This only happens at high noise levels in the cockpit, on the ground o
r
> throttled back the intercom works great.
>
> I use Lightspeed 20-3G's for headphones and it happens with ANR either
> on or off.
>
> Any ideas guys???
>
> Ben Haas
> N801BH
> www.Haaspowerair.com <http://www.Haaspowerair.com>
What is the nature of the 'annoying noise'? Is it electronic in nature,
or just very loud airplane noise?
This might not be relevant, but what's the condition of the ear pads on
the Lightspeeds? If the slick-feeling 'skins' on the ear muffs (at least
on my older 15XL's) are cracked and/or peeling, it totally destroys the
noise reduction ability of the headset.
Charlie
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Message 7
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Subject: | Batteries.com AA Alkaline Cell Tests |
The tests I promised on the Batteries.com AA
cells is done. See:
http://www.aeroelectric.com/Pictures/Curves/Bat_dot_Com_AA_Tests.jpg
One of the cells was markedly 'short' compared to
the other one. Even this cell contained 91% of the
average energy for all cells tested. The 'hot' cell
was right in the ball park with some el-cheeso Harbor
Freight cells I looked at several months ago.
Typically, these "low cost" cells can be had for
20 to 25-cents per cell. The cost per watt-hour
for all devices tested to date have been relatively
attractive.
Bob . . .
----------------------------------------)
( . . . a long habit of not thinking )
( a thing wrong, gives it a superficial )
( appearance of being right . . . )
( )
( -Thomas Paine 1776- )
----------------------------------------
Message 8
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Subject: | Re: AeroElectric- Batteries |
At 02:06 PM 11/23/2007 -0600, you wrote:
>Bob,
>A week or two back I sent you two AA cells to test. Have you had time to
>do so?
>Just curious to find out if I made a good purchase or not.
>Kevin Boddicker
>Tri Q 200 N7868B 79.4 hours
>Luana, IA.
Just posted the data. How much did you pay for these?
They held their own in the constellation of low-cost
cells to date. If you picked these up for 30 cents or
less, I would think they're a good value.
Of course, this was a VERY small sample but the
data was encouraging enough to warrant some
in-service testing. Let us know what your impressions
are after you've used up a couple dozen.
Bob . . .
Message 9
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Subject: | Re: Batteries.com AA Alkaline Cell Tests |
At 19:26 11/23/2007, you wrote:
>The tests I promised on the Batteries.com AA
>cells is done. See:
>
>http://www.aeroelectric.com/Pictures/Curves/Bat_dot_Com_AA_Tests.jpg
Volts vs. Time (minutes ?)
What was the load current or wattage?
RonQ.
Message 10
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Subject: | Re: Wilco STC for concorde batteries |
11/23/2007
Hello Scott, Thank you for your input copied below, but I am not entirely
convinced. If you will go to this web page:
http://www.aircraftspruce.com/catalog/elpages/gillbatt.php
you will find this wording: "Installations not shown on D.O.T. FAA/PMA
listings will require field approval using FAA Form 337 or FAA approved
STC."
Note that it says "FAA form 337" OR "FAA approved STC". This means to me
that one or the other is required, but not both.
Since Wilco has STC SA00638WI for all Raytheon / Beech models 24 (My friend
has a C24R)
I don't see why an FAA Form 337 would be required. Can you please provide a
specific reference to the contrary?
See the page "Wilco held STCs" at this web site.
http://www.wilcoaircraftparts.com/LineCard.htm#
Thanks for your help.
'OC' Says: "The best investment we can make is the effort to gather and
understand knowledge."
-----------------------------------------------------
----- Original Message -----
From: "scott klemptner" <bmwr606@yahoo.com>
Sent: Thursday, November 22, 2007 2:01 PM
Subject: Wilco STC for concorde batteries
> Hello,
>
> To be legal in a certified airplane, your friend will need the STC from
> Wilco and a form 337 filed with the FAA.
>
> An IA must fill out the 337
>
> WIlcom sells the batteries at a fair price ( in my experience) and
> includes the STC for free
>
>
> bmwr606@yahoo.com (scottk)
> Y! IM bmwr606
> http://360.yahoo.com/bmwr606
Message 11
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Subject: | Re: Batteries.com AA Alkaline Cell Tests |
At 08:14 PM 11/23/2007 -0800, you wrote:
>
>At 19:26 11/23/2007, you wrote:
>>The tests I promised on the Batteries.com AA
>>cells is done. See:
>>
>>http://www.aeroelectric.com/Pictures/Curves/Bat_dot_Com_AA_Tests.jpg
>
>Volts vs. Time (minutes ?)
>What was the load current or wattage?
Sorry, I clipped the test data from the right
side of the image. I test these cells at 300 milliamperes
constant current load. The bottom of the plot is
ampere-hours so these cells will support a 300 mA
load for something on the order of 5 hours.
Bob . . .
----------------------------------------)
( . . . a long habit of not thinking )
( a thing wrong, gives it a superficial )
( appearance of being right . . . )
( )
( -Thomas Paine 1776- )
----------------------------------------
Message 12
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Subject: | Re: Ps Engineering intercom noise |
At 10:26 PM 11/23/2007 +0000, you wrote:
>It is very loud airplane noise, as if the mics are picking up cabin
>sounds, I am going to crawl under the panel this afternoon and check
>connections... Thanks for responding..
As I recall, PS engineering's products feature an
automatic squelch system that differentiates between
ambient noise and human speech. Most older intercoms
have a pilot adjustable squelch that needs resetting
between say ground ops and cruising flight.
If you're hearing "cabin noise" and your intercom
doesn't have a manual noise squelch adjustment, then
it may be that this portion of the intercom's
circuitry has failed.
Bob . . .
Message 13
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Subject: | Re: Batteries.com AA Alkaline Cell Tests |
At 08:14 PM 11/23/2007 -0800, you wrote:
>
>At 19:26 11/23/2007, you wrote:
>>The tests I promised on the Batteries.com AA
>>cells is done. See:
>>
>>http://www.aeroelectric.com/Pictures/Curves/Bat_dot_Com_AA_Tests.jpg
>
>Volts vs. Time (minutes ?)
>What was the load current or wattage?
Sorry, I clipped the test data from the right
side of the image. I test these cells at 300 milliamperes
constant current load. The bottom of the plot is
ampere-hours so these cells will support a 300 mA
load for something on the order of 5 hours.
P.S. I've added the load and units callout to
the bottom of the plot . . .
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