Today's Message Index:
----------------------
1. 07:15 AM - Preventing Bird Strikes in Aviation (Eric M. Jones)
2. 07:49 AM - Re: grounding procedures (Richard)
3. 08:01 AM - Re: grounding procedures (Ron Walker)
4. 11:41 AM - Re: Preventing Bird Strikes in Aviation (Robert Borger)
5. 12:08 PM - Contactor (Ed Holyoke)
6. 12:16 PM - Re: Over-voltage Circuit Trips (Jack Haviland)
7. 12:19 PM - Re: Contactor (Robert L. Nuckolls, III)
8. 12:32 PM - Re: Contactor redux (Robert L. Nuckolls, III)
9. 12:51 PM - Re: Over-voltage Circuit Trips (Robert L. Nuckolls, III)
10. 01:26 PM - Re: Contactor redux (rayj)
11. 03:45 PM - Re: Contactor (Ed Holyoke)
12. 04:47 PM - Re: Contactor redux (Robert L. Nuckolls, III)
13. 05:21 PM - Re: Contactor redux (rayj)
14. 05:36 PM - Re: Contactor (Robert L. Nuckolls, III)
15. 06:01 PM - solid wire in PGID terminals (rayj)
Message 1
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| Subject: | Preventing Bird Strikes in Aviation |
Good news:
http://onlinelibrary.wiley.com/doi/10.1111/j.1365-2664.2012.02165.x/full
also: http://io9.com/5925193/scientists-explain-how-to-prevent-one-of-the-most-common-airplane-disasters
Summary...Wig-wags work well in preventing aircraft bird strikes.
--------
Eric M. Jones
www.PerihelionDesign.com
113 Brentwood Drive
Southbridge, MA 01550
(508) 764-2072
emjones(at)charter.net
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=378181#378181
Message 2
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| Subject: | Re: grounding procedures |
WARNING FROM SHELL OIL COMPANY DO NOT DELETE, PLEASE READ=0A=0A=0AMUST READ
, EVEN IF YOU DON'T OWN A CAR=0A=0A=0AShell Oil Comments - A MUST READ! =0A
=0ASafety Alert! =0AHere are some reasons why we don't allow cell phones in
operating areas, propylene oxide handling and storage area, propane, gas a
nd diesel refueling areas. =0A=0AThe Shell Oil Company recently issued a wa
rning after three incidents in which mobile phones (cell phones) ignited fu
mes during fueling operations =0A=0AIn the first case, the phone was placed
on the car's trunk lid during fueling; it rang and the ensuing fire destro
yed the car and the gasoline pump. =0A=0AIn the second, an individual suffe
red severe burns to their face when fumes ignited as they answered a call w
hile refueling their car! =0A=0AAnd in the third, an individual suffered bu
rns to the thigh and groin as fumes ignited when the phone, which was in th
eir pocket, rang while they were fueling their car. =0A=0AYou should know t
hat: Mobile Phones can ignite fuel or fumes =0A=0AMobile phones that light
up when switched on or when they ring release enough energy to provide a sp
ark for ignition =0A=0AMobile phones should not be used in filling stations
, or when fueling lawn mowers, boat, etc.=0A=0AMobile phones should not be
used, or should be turned off, around other materials that generate flammab
le or explosive fumes or dust, (I.e., solvents, chemicals, gases, grain dus
t, etc...) =0A=0ATO sum it up, here are the Four Rules for Safe Refueling:
=0A=0A1) Turn off engine =0A2) Don't smoke=0A3) Don't use your cell phone -
leave it inside the vehicle or turn it off =0A4) Don't re-enter your vehic
le during fueling.=0A=0ABob Renkes of Petroleum Equipment Institute is work
ing on a campaign to try and make people aware of fires as a result of 'sta
tic electricity' at gas pumps.=0A-His company has researched 150 cases of
these fires. =0A=0AHis results were very surprising: =0A=0A1) Out of 150 c
ases, almost all of them were women. =0A=0A2) Almost all cases involved the
person getting back in their vehicle while the nozzle was still pumping ga
s. =0AWhen finished, they went back to pull the nozzle out and the fire sta
rted, as a result of static. =0A=0A3) Most had on rubber-soled shoes. =0A
=0A4) Most men never get back in their vehicle until completely finished.
=0AThis is why they are seldom involved in these types of fires. =0A=0A5) D
on't ever use cell phones when pumping gas =0A=0A6) It is the vapors that c
ome out of the gas that cause the fire, when connected with static charges.
=0A=0A7) There were 29 fires where the vehicle was re-entered and the nozz
le was touched during refueling from a variety of makes and models. =0ASome
resulted in extensive damage to the vehicle, to the station, and to the cu
stomer. =0A=0A8) Seventeen fires occurred before, during or immediately aft
er the gas cap was removed and before fueling began.=0A=0AMr. Renkes stress
es to- NEVERget back into your vehicle while filling it with gas. =0AIf y
ou absolutely HAVE to get in your vehicle while the gas is pumping, make su
re you get out, close the door TOUCHING THE METAL, before you ever pull the
nozzle out. =0AThis way the static from your body will be discharged befor
e you ever remove the nozzle. =0A=0AAs I mentioned earlier, The Petroleum E
quipment Institute, along with several other companies now, are really tryi
ng to make the public aware of this danger. =0A=0AI ask you to please send
this information to ALL your family and friends, especially those who have
kids in the car with them while pumping gas. =0AIf this were to happen to t
hem, they may not be able to get the children out in time.
Message 3
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| Subject: | Re: grounding procedures |
I agree that cell phone usage while fueling a car is not wise (you
should be paying attention to the task at hand), this specific "Warning
from Shell" is an internet urban legend.
http://www.snopes.com/autos/hazards/gasvapor.asp
On Fri, 2012-07-13 at 07:49 -0700, Richard wrote:
> WARNING FROM SHELL OIL COMPANY DO NOT DELETE, PLEASE READ
>
>
> MUST READ, EVEN IF YOU DON'T OWN A CAR
>
>
> Shell Oil Comments - A MUST READ!
>
Message 4
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| Subject: | Re: Preventing Bird Strikes in Aviation |
Eric,
Good information. Thanks.
Blue skies & tailwinds,
Bob Borger
Europa XS Tri, Rotax 914, Airmaster C/S Prop.
Little Toot Sport Biplane, Lycoming Thunderbolt AEIO-320 EXP
3705 Lynchburg Dr.
Corinth, TX 76208-5331
Cel: 817-992-1117
rlborger@mac.com
On Jul 13, 2012, at 9:13 AM, Eric M. Jones wrote:
Good news:
http://onlinelibrary.wiley.com/doi/10.1111/j.1365-2664.2012.02165.x/full
also: http://io9.com/5925193/scientists-explain-how-to-prevent-one-of-the-most-common-airplane-disasters
Summary...Wig-wags work well in preventing aircraft bird strikes.
--------
Eric M. Jones
www.PerihelionDesign.com
113 Brentwood Drive
Southbridge, MA 01550
(508) 764-2072
emjones(at)charter.net
Message 5
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Howdy,
I just recieved from B&C a starter contactor S701-1 which, unlike all
the others I've seen, has plastic covers on the mounting tabs. Where is
this guy going to get a coil ground connection? Is the intention to wire
through the switch to ground?
http://www.bandc.biz/pdfs/S701-1_Wiring.pdf
Pax,
Ed Holyoke
Message 6
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| Subject: | Re: Over-voltage Circuit Trips |
On Jul 12, 2012, at 5:40 PM, Robert L. Nuckolls, III wrote:
>> Since my RV first flew about a year ago the over-voltage circuit has
frequently tripped shortly after take off. Resetting the 5 amp pull-able
circuit breaker once or twice generally prevents a re-occurence for the
remainder of the flight but I need to determine the root cause and
correct it.
>
> Jack, I'm not ignoring you. Will have a response
> and some suggestions in the morning . . .
Thanks Bob. A short flight this morning demonstrated that replacing the
suspect circuit breaker did not correct the situation. The main bus was
at 12.6 volts prior to start and read a solid 14.2 volts during the
flight. The EIS (on the endurance bus) was displaying around 13.6 volts
but the breaker tripped twice during each of two climbs to the pattern.
All connections and terminals in the field circuit appear to be secure.
The aircraft instrumentation does not include a recording capability.
Suggestions will be greatly appreciated!
Jack
Message 7
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At 02:03 PM 7/13/2012, you wrote:
>
>Howdy,
>
>I just recieved from B&C a starter contactor S701-1 which, unlike
>all the others I've seen, has plastic covers on the mounting tabs.
>Where is this guy going to get a coil ground connection? Is the
>intention to wire through the switch to ground?
>
>http://www.bandc.biz/pdfs/S701-1_Wiring.pdf
>
>Pax,
The S701-1 is a continuous duty battery master
contactor and not intended for service as a
starter contactor. This is why it is shipped
configured as a Battery contactor which gets a
ground through the battery master switch.
If you wish to use this contactor to control power
to your starter, you remove the jumper wire installed
and run your starter push button to the left, small
terminal. You add a longer jumper from the right,
small terminal to ground.
Bob . . .
Message 8
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| Subject: | Re: Contactor redux |
At 02:15 PM 7/13/2012, you wrote:
<nuckolls.bob@aeroelectric.com>
At 02:03 PM 7/13/2012, you wrote:
Howdy,
I just recieved from B&C a starter contactor S701-1 which, unlike all
the others I've seen, has plastic covers on the mounting tabs. Where
is this guy going to get a coil ground connection? Is the intention
to wire through the switch to ground?
http://www.bandc.biz/pdfs/S701-1_Wiring.pdf
Pax,
Ed,
The S701-1 is a continuous duty battery master
contactor and not intended for service as a
starter contactor. This is why it is shipped
configured as a Battery contactor which gets a
ground through the battery master switch.
If you wish to use this contactor to control power
to your starter, you remove the jumper wire installed
and run your starter push button to the left, small
terminal. You add a longer jumper from the right,
small terminal to ground.
AHA! I see the point of confusion. The B&C wiring
diagram cited calls for running a fat wire to
the "starter contactor" which means the HOT side
of the starter contactor which shares a connection
to the ship's main bus. This isn't intended to
imply that this contactor is used for starter
control.
The image might better read, "To main bus via hot
side of starter contactor"
If you're looking for a starter contactor . . . I
suggest you consider the S702-1 or equivalent.
http://tinyurl.com/6p8raot
Bob . . .
-----
No virus found in this message.
Checked by AVG - www.avg.com
Bob . . .
Message 9
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| Subject: | Re: Over-voltage Circuit Trips |
>Thanks Bob. A short flight this morning demonstrated that replacing
>the suspect circuit breaker did not correct the situation. The main
>bus was at 12.6 volts prior to start and read a solid 14.2 volts
>during the flight. The EIS (on the endurance bus) was displaying
>around 13.6 volts but the breaker tripped twice during each of two
>climbs to the pattern. All connections and terminals in the field
>circuit appear to be secure. The aircraft instrumentation does not
>include a recording capability. Suggestions will be greatly appreciated!
>
>Jack
What kind of OV crowbar system is installed on your
airplane? If it's a crowbar module from me,
you can raise the trip voltage setpoint
by turning the adjusting potentiometer 1
revolution counter-clockwise. If you have
a B&C crowbar module, their pot is under the
heat shrink which needs to be cut away and
replaced after the device is re-calibrated.
If it's inside a B&C alternator controller,
you'll need to return it to B&C for re-calibration.
Bob . . .
Message 10
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| Subject: | Re: Contactor redux |
Bob,
I noticed that crimp-on terminals were used on the solid leads on the
diode. It was my understanding that using crimp-ons on solid wire was
not recommended. Am I misinformed....again? :)
do not archive
Raymond Julian
Kettle River, MN.
"And you know that I could have me a million more friends,
and all I'd have to lose is my point of view." - John Prine
>
> Howdy,
>
> I just recieved from B&C a starter contactor S701-1 which, unlike all
> the others I've seen, has plastic covers on the mounting tabs. Where is
> this guy going to get a coil ground connection? Is the intention to wire
> through the switch to ground?
>
> http://www.bandc.biz/pdfs/S701-1_Wiring.pdf
>
> Pax,
>
> Ed,
>
> The S701-1 is a continuous duty battery master
> contactor and not intended for service as a
> starter contactor. This is why it is shipped
> configured as a Battery contactor which gets a
> ground through the battery master switch.
>
-------------------------------snip--------------------------------
>
> Bob . . .
>
Message 11
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My bad. I meant to say battery contactor, not starter. After I posted, I
went out to the shop and verified that the small terminal on the right
closes the contactor when grounded. For some reason, I had pictured
putting voltage to the contactor to close it instead of pulling it down.
Duh, where do I get power to the switch to close the contactor if the
main bus is not hot? Didn't think it all the way through.
Pax,
Ed Holyoke
On 7/13/2012 12:15 PM, Robert L. Nuckolls, III wrote:
> <nuckolls.bob@aeroelectric.com>
>
> At 02:03 PM 7/13/2012, you wrote:
>> <bicyclop@pacbell.net>
>>
>> Howdy,
>>
>> I just recieved from B&C a starter contactor S701-1 which, unlike all
>> the others I've seen, has plastic covers on the mounting tabs. Where
>> is this guy going to get a coil ground connection? Is the intention
>> to wire through the switch to ground?
>>
>> http://www.bandc.biz/pdfs/S701-1_Wiring.pdf
>>
>> Pax,
>
> The S701-1 is a continuous duty battery master
> contactor and not intended for service as a
> starter contactor. This is why it is shipped
> configured as a Battery contactor which gets a
> ground through the battery master switch.
>
> If you wish to use this contactor to control power
> to your starter, you remove the jumper wire installed
> and run your starter push button to the left, small
> terminal. You add a longer jumper from the right,
> small terminal to ground.
>
>
> Bob . . .
>
>
Message 12
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| Subject: | Re: Contactor redux |
At 03:22 PM 7/13/2012, you wrote:
>
>Bob,
>
>I noticed that crimp-on terminals were used on the solid leads on
>the diode. It was my understanding that using crimp-ons on solid
>wire was not recommended. Am I misinformed....again? :)
Is that something I wrote? If it was, I cannot recall
a context where that would be true. Here's a photomicrograph
I just shot for 22AWG solid wire (diode lead) crimped into a
red PIDG using an el-cheapo crimp tool.
Emacs!
I couldn't find my polishing disk so the smoothed end is
rather rough. Normally you'd be able to see the ring of
tin plating on the wire at the interface between wire
and terminal barrel. Nonetheless, this photo confirms that
the two metals to be joined have been upset with sufficient
force to make them essentially one with no voids.
Bob . . .
Message 13
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| Subject: | Re: Contactor redux |
I thought I saw it one of the electronics catalogs. I'll do a little
looking around and see if I can find where I saw it. Thanks again for
the info.
Raymond Julian
Kettle River, MN.
"And you know that I could have me a million more friends,
and all I'd have to lose is my point of view." - John Prine
On 07/13/2012 06:42 PM, Robert L. Nuckolls, III wrote:
> At 03:22 PM 7/13/2012, you wrote:
>>
>> Bob,
>>
>> I noticed that crimp-on terminals were used on the solid leads on the
>> diode. It was my understanding that using crimp-ons on solid wire was
>> not recommended. Am I misinformed....again? :)
>
> Is that something I wrote? If it was, I cannot recall
> a context where that would be true. Here's a photomicrograph
> I just shot for 22AWG solid wire (diode lead) crimped into a
> red PIDG using an el-cheapo crimp tool.
>
> Emacs!
>
> I couldn't find my polishing disk so the smoothed end is
> rather rough. Normally you'd be able to see the ring of
> tin plating on the wire at the interface between wire
> and terminal barrel. Nonetheless, this photo confirms that
> the two metals to be joined have been upset with sufficient
> force to make them essentially one with no voids.
>
> Bob . . .
>
Message 14
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At 05:41 PM 7/13/2012, you wrote:
>My bad. I meant to say battery contactor, not starter. After I
>posted, I went out to the shop and verified that the small terminal
>on the right closes the contactor when grounded. For some reason, I
>had pictured putting voltage to the contactor to close it instead of
>pulling it down. Duh, where do I get power to the switch to close
>the contactor if the main bus is not hot? Didn't think it all the way through.
No problem. But your query did get some
attention to a need for better labeling
of the contactor's downstream terminal.
Greg at B&C has forwarded the suggestion
on . . .
Bob . . .
Message 15
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| Subject: | solid wire in PGID terminals |
Turns out I'm misinformed again. The pgid terminal specs in the Digikey
specify SOLID OR STRANDED wire.
The only possible defense of my error I can find is that some larger
crimp on lugs (starting at #8 wire) specify that they are for stranded
wire, although they don't specifically prohibit solid wire.
Thanks again for helping me get things right.
Raymond Julian
Kettle River, MN.
"And you know that I could have me a million more friends,
and all I'd have to lose is my point of view." - John Prine
On 07/13/2012 06:42 PM, Robert L. Nuckolls, III wrote:
> At 03:22 PM 7/13/2012, you wrote:
>>
>> Bob,
>>
>> I noticed that crimp-on terminals were used on the solid leads on the
>> diode. It was my understanding that using crimp-ons on solid wire was
>> not recommended. Am I misinformed....again? :)
>
> Is that something I wrote? If it was, I cannot recall
> a context where that would be true. Here's a photomicrograph
> I just shot for 22AWG solid wire (diode lead) crimped into a
> red PIDG using an el-cheapo crimp tool.
>
> Emacs!
>
> I couldn't find my polishing disk so the smoothed end is
> rather rough. Normally you'd be able to see the ring of
> tin plating on the wire at the interface between wire
> and terminal barrel. Nonetheless, this photo confirms that
> the two metals to be joined have been upset with sufficient
> force to make them essentially one with no voids.
>
> Bob . . .
>
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