Today's Message Index:
----------------------
1. 07:28 AM - Re: basic questions on terminal strips (Bill Bradburry)
2. 08:26 AM - Re: basic questions on terminal strips (Robert L. Nuckolls, III)
3. 08:27 AM - Re: basic questions on terminal strips (Robert L. Nuckolls, III)
4. 09:02 AM - Re: basic questions on terminal strips (Ken Ryan)
5. 09:30 AM - Re: basic questions on terminal strips (John Morgensen)
6. 09:52 AM - Re: basic questions on terminal strips (Robert L. Nuckolls, III)
7. 09:58 AM - Re: Fw: [Bearhawk] Pacer progress (mmoyle)
8. 10:07 AM - Re: Fw: [Bearhawk] Pacer progress (mmoyle)
9. 11:58 AM - Re: Re: Fw: [Bearhawk] Pacer progress (Robert L. Nuckolls, III)
10. 12:01 PM - Re: Re: Fw: [Bearhawk] Pacer progress (Robert L. Nuckolls, III)
11. 12:26 PM - Re: Fw: [Bearhawk] Pacer progress (mmoyle)
12. 12:39 PM - Re: Re: Fw: [Bearhawk] Pacer progress (H. Marvin Haught)
13. 12:43 PM - Re: Re: Fw: [Bearhawk] Pacer progress (H. Marvin Haught)
14. 01:21 PM - Re: Re: USB Charger (John Morgensen)
15. 01:51 PM - Re: USB Charger (JCurtis)
16. 02:04 PM - Re: Re: USB Charger (John Tipton)
17. 03:53 PM - Re: Re: USB Charger (Bill Bradburry)
18. 04:02 PM - Re: Re: USB Charger (C&K)
19. 06:02 PM - Re: Re: Fw: [Bearhawk] Pacer progress (Robert L. Nuckolls, III)
20. 06:12 PM - Re: basic questions on terminal strips (user9253)
21. 06:20 PM - Re: Re: basic questions on terminal strips (Ken Ryan)
22. 06:28 PM - Re: Fw: [Bearhawk] Pacer progress (user9253)
23. 06:30 PM - Re: Re: Fw: [Bearhawk] Pacer progress (Robert L. Nuckolls, III)
24. 06:41 PM - Re: Re: Fw: [Bearhawk] Pacer progress (H. Marvin Haught)
25. 07:07 PM - Re: Re: Fw: [Bearhawk] Pacer progress (H. Marvin Haught Jr.)
26. 07:24 PM - Re: Re: Fw: [Bearhawk] Pacer progress (Robert L. Nuckolls, III)
27. 08:34 PM - Re: Re: Fw: [Bearhawk] Pacer progress (Robert L. Nuckolls, III)
28. 08:56 PM - Re: Re: Fw: [Bearhawk] Pacer progress (H. Marvin Haught Jr)
29. 09:18 PM - Re: Re: Fw: [Bearhawk] Pacer progress (H. Marvin Haught Jr)
30. 09:22 PM - Re: Re: Fw: [Bearhawk] Pacer progress (H. Marvin Haught Jr)
Message 1
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Subject: | basic questions on terminal strips |
Does anyone know what happens here? I too often get emails from a friend
like this where there is nothing in the body of the email.
Bill
-----Original Message-----
From: owner-aeroelectric-list-server@matronics.com
[mailto:owner-aeroelectric-list-server@matronics.com] On Behalf Of Charlie
England
Sent: Saturday, June 20, 2015 7:29 PM
Subject: Re: AeroElectric-List: basic questions on terminal strips
Message 2
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Subject: | Re: basic questions on terminal strips |
At 12:20 PM 6/20/2015, you wrote:
>Thanks Bob. I think I have what I need in the shop to do it about
>three different ways, and if not it should be easy to find right
>here in Anchorage.
Take pictures . . .
Bob . . .
Message 3
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Subject: | Re: basic questions on terminal strips |
At 02:32 PM 6/20/2015, you wrote:
>UHMW + standard AN3 hardware seems to have worked pretty well. Pics attached.
Thanks!
Bob . . .
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Subject: | Re: basic questions on terminal strips |
Pic showing temp/partial installation:
On Sun, Jun 21, 2015 at 7:24 AM, Robert L. Nuckolls, III
<nuckolls.bob@aeroelectric.com> wrote:
> At 12:20 PM 6/20/2015, you wrote:
>
> Thanks Bob. I think I have what I need in the shop to do it about three
> different ways, and if not it should be easy to find right here in
> Anchorage.
>
>
> Take pictures . . .
>
> Bob . . .
>
>
Message 5
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Subject: | Re: basic questions on terminal strips |
Me too! However, you can "view source" and see the message.
john
On 6/21/2015 7:26 AM, Bill Bradburry wrote:
>
> Does anyone know what happens here? I too often get emails from a friend
> like this where there is nothing in the body of the email.
>
> Bill
>
> -----Original Message-----
> From: owner-aeroelectric-list-server@matronics.com
> [mailto:owner-aeroelectric-list-server@matronics.com] On Behalf Of Charlie
> England
> Sent: Saturday, June 20, 2015 7:29 PM
> To: aeroelectric-list@matronics.com
> Subject: Re: AeroElectric-List: basic questions on terminal strips
>
>
Message 6
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Subject: | Re: basic questions on terminal strips |
At 11:00 AM 6/21/2015, you wrote:
>Pic showing temp/partial installation:
You done good my friend . . . just remember
that as you add wires to any post, there
should be no intervening hardware between
terminals . . . i.e. the terminal strip
hardware is there to separate, support and
put the super-mash on the stack of terminals
. . . no hardware should be tasked with carrying
electrons.
In your particular case, the currents are low;
failure to observe that process goal is not fraught
with risk.
I'll use your photos to do a comic-book
for aeroelectric.com wherein we'll mention
the time-honored recipes for success to
manage wires from 22AWG through 000.
Thanks for sharing.
Bob . . .
Message 7
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Subject: | Re: Fwd: [Bearhawk] Pacer progress |
Progress as of yesterday. Remaining before installing the panel are the jacks
for the PM3000, 2ea 1 amp shunt breakers, connecting the power supply to the Trig
radio and PM3000
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=443859#443859
Attachments:
http://forums.matronics.com//files/image_438.jpg
http://forums.matronics.com//files/image_347.jpg
Message 8
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Subject: | Re: Fwd: [Bearhawk] Pacer progress |
Battery mount.
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=443860#443860
Attachments:
http://forums.matronics.com//files/image_873.jpg
http://forums.matronics.com//files/image_825.jpg
http://forums.matronics.com//files/image_807.jpg
http://forums.matronics.com//files/image_548.jpg
Message 9
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Subject: | Re: Fwd: [Bearhawk] Pacer progress |
At 11:57 AM 6/21/2015, you wrote:
>
>Progress as of yesterday. Remaining before installing the panel are
>the jacks for the PM3000, 2ea 1 amp shunt breakers, connecting the
>power supply to the Trig radio and PM3000
>
>
>Read this topic online here:
>
>http://forums.matronics.com/viewtopic.php?p=443859#443859
>
>
>Attachments:
>
>http://forums.matronics.com//files/image_438.jpg
>http://forums.matronics.com//files/image_347.jpg
Hmmmm . . . looks like your project has already
passed many opportunities for considered decisions.
When you published your diagram, I mistakenly
assumed you were in the planning stages . . .
Getting back to your original diagram, what
questions are as yet unresolved?
Bob . . .
Message 10
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Subject: | Re: Fwd: [Bearhawk] Pacer progress |
At 12:05 PM 6/21/2015, you wrote:
>
>Battery mount.
> What are the functions of the two contactors?
Bob . . .
Message 11
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Subject: | Re: Fwd: [Bearhawk] Pacer progress |
Bob,
I was at the wiring the panel planning stage four days ago. Still pondering the
mag ground at the ignition switch for the P-leads. The schematic shows grounding
it to the airframe. The shortwing guys are talking about grounding per schematic,
others not. I'm extending a few of the head set jack. The PM300 calls
for shielded wires. Do I need to add shielding at the splice? Something like
metal foil then shrink tube?
The two solenoids are Lamar. One continuous duty. Is closed at the panel's master
switch by completing the ground. The other is intermittent duty and is for
the starter.
Mark
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=443867#443867
Message 12
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Subject: | Re: Fwd: [Bearhawk] Pacer progress |
Bob -
Mark=99s system is well beyond =9Copportunities for
consideration=9D but I am following his path on
my PA22-20 project, so want to learn from what Mark has done, and get
your input on designing a system for my project. Hence, I asked him to
post what he has done. =46rom his postings, and the responses from you
and the group, I hope to learn what to do differently, as well as what
to copy.
For example: I have the same contactors for my project, (one for
starter that is not continuous, and one form Battery that IS
continuous)) coupled with a Bendix ignition switch with a =9CStart
=9D position to do away with the box / push button system that was
originally under the pilot=99s seat. Mark used a Master Switch
for his system - I understand that you do not recommend a Master Switch
because it is a single point of failure for the electrical system. In
that case, how would the system be configured to do away with a Master
Switch? Would the entire electrical system be activated from the
ignition switch going to a L/R or Both Mag position? I am hoping this
will generate a very productive discussion that results in an electrical
system design that I can get =9Capproved=9D for my project
with a minimum of problems with the FAA, and yet, have an up to date
system with modern components.
M. Haught
> On Jun 21, 2015, at 1:57 PM, Robert L. Nuckolls, III
<nuckolls.bob@aeroelectric.com> wrote:
>
> At 11:57 AM 6/21/2015, you wrote:
>>
>> Progress as of yesterday. Remaining before installing the panel are
the jacks for the PM3000, 2ea 1 amp shunt breakers, connecting the power
supply to the Trig radio and PM3000
>>
>>
>>
>>
>> Read this topic online here:
>>
>> http://forums.matronics.com/viewtopic.php?p=443859#443859
<http://forums.matronics.com/viewtopic.php?p=443859#443859>
>>
>>
>>
>>
>> Attachments:
>>
>> http://forums.matronics.com//files/image_438.jpg
<http://forums.matronics.com//files/image_438.jpg>
>> http://forums.matronics.com//files/image_347.jpg
<http://forums.matronics.com//files/image_347.jpg>
>
> Hmmmm . . . looks like your project has already
> passed many opportunities for considered decisions.
> When you published your diagram, I mistakenly
> assumed you were in the planning stages . . .
>
> Getting back to your original diagram, what
> questions are as yet unresolved?
>
>
> Bob . . .
>
>
>
<http://www.matronics.com/Navigator?AeroElectric-List>
<http://www.matronics.com/contribution>
>
Message 13
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Subject: | Re: Fwd: [Bearhawk] Pacer progress |
Four days ago, when we started this process, we were hoping for substantial feedback
then, and the whole discussion stalled. Mark proceeded forward as best
he knew how, as he is trying to move his project forward as efficiently as possible.
I am still hoping to glean some dos and donts from his experience.
M. Haught
> On Jun 21, 2015, at 2:25 PM, mmoyle <moylemc@gmail.com> wrote:
>
>
> Bob,
> I was at the wiring the panel planning stage four days ago. Still pondering
the mag ground at the ignition switch for the P-leads. The schematic shows grounding
it to the airframe. The shortwing guys are talking about grounding per
schematic, others not. I'm extending a few of the head set jack. The PM300 calls
for shielded wires. Do I need to add shielding at the splice? Something
like metal foil then shrink tube?
>
> The two solenoids are Lamar. One continuous duty. Is closed at the panel's
master switch by completing the ground. The other is intermittent duty and is
for the starter.
> Mark
>
>
>
>
> Read this topic online here:
>
> http://forums.matronics.com/viewtopic.php?p=443867#443867
>
>
>
>
>
>
>
>
>
>
Message 14
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|
Wow! The "designer and maker" of the product makes himself available to
the list and the subject goes dead. Did I miss something?
john
On 6/18/2015 9:56 AM, JCurtis wrote:
>
> Hi,
>
> I am the designer and maker of the Charge2 and Charge4 USB chargers mentioned
in this tread. A customer let me know about the forum and suggested I register,
so I have.
>
> If anyone has questions over the units, please get in touch, I will answer the
best I can.
>
> --------
> Designer and maker of <a href="http://www.charge4.co.uk/" target="_blank">Charge2 & Charge4</a>
>
>
> Read this topic online here:
>
> http://forums.matronics.com/viewtopic.php?p=443757#443757
>
>
Message 15
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JohnInReno wrote:
> Wow! The "designer and maker" of the product makes himself available to the list
and the subject goes dead. Did I miss something?
>
> john
Well, I do try and put information up on the website, but still happy to answer
questions via the forum or via e-mail (address on the website).
Jeremy.
--------
Designer and maker of <a href="http://www.charge4.co.uk/" target="_blank">Charge2 & Charge4</a>
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=443871#443871
Message 16
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|
I think it's indicative of this list that there is a lot of fancy talk, people
go on about design criteria, a lot of theorising etc etc, then someone comes along
with positive advice from a professional - which puts everyone out on a
limb because they know nothing
John
Sent from my iPad
----x--O--x----
> On 21 Jun 2015, at 09:18 pm, John Morgensen <john@morgensen.com> wrote:
>
>
> Wow! The "designer and maker" of the product makes himself available to the list
and the subject goes dead. Did I miss something?
>
> john
>
>> On 6/18/2015 9:56 AM, JCurtis wrote:
>>
>> Hi,
>>
>> I am the designer and maker of the Charge2 and Charge4 USB chargers mentioned
in this tread. A customer let me know about the forum and suggested I register,
so I have.
>>
>> If anyone has questions over the units, please get in touch, I will answer the
best I can.
>>
>> --------
>> Designer and maker of <a href="http://www.charge4.co.uk/" target="_blank">Charge2 & Charge4</a>
>>
>>
>>
>>
>> Read this topic online here:
>>
>> http://forums.matronics.com/viewtopic.php?p=443757#443757
>
>
>
>
>
Message 17
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Gee Whiz, John!
I have a bad day from time to time as well, and it sometimes results in a
post I wish I had kept to myself. Don't worry about it.
Bill
-----Original Message-----
From: owner-aeroelectric-list-server@matronics.com
[mailto:owner-aeroelectric-list-server@matronics.com] On Behalf Of John
Tipton
Sent: Sunday, June 21, 2015 4:03 PM
Subject: Re: AeroElectric-List: Re: USB Charger
<jmtipton@btopenworld.com>
I think it's indicative of this list that there is a lot of fancy talk,
people go on about design criteria, a lot of theorising etc etc, then
someone comes along with positive advice from a professional - which puts
everyone out on a limb because they know nothing
John
Sent from my iPad
----x--O--x----
> On 21 Jun 2015, at 09:18 pm, John Morgensen <john@morgensen.com> wrote:
>
<john@morgensen.com>
>
> Wow! The "designer and maker" of the product makes himself available to
the list and the subject goes dead. Did I miss something?
>
> john
>
>> On 6/18/2015 9:56 AM, JCurtis wrote:
<jeremy.curtis@harkwood.co.uk>
>>
>> Hi,
>>
>> I am the designer and maker of the Charge2 and Charge4 USB chargers
mentioned in this tread. A customer let me know about the forum and
suggested I register, so I have.
>>
>> If anyone has questions over the units, please get in touch, I will
answer the best I can.
>>
>> --------
>> Designer and maker of <a href="http://www.charge4.co.uk/"
target="_blank">Charge2 & Charge4</a>
>>
>>
>>
>>
>> Read this topic online here:
>>
>> http://forums.matronics.com/viewtopic.php?p=443757#443757
>
>
>
>
>
Message 18
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|
That is a very different impression than mine from being on this list
for many years.
Some of us use the shared knowledge and ideas here, make our own
hardware, learn something in the process, and share the result freely
when it seems appropriate...
I never know whose comment might spark a useful thought or lead to a
solution!
Ken
do not archive
On 21/06/2015 5:03 PM, John Tipton wrote:
>
> I think it's indicative of this list that there is a lot of fancy talk, people
go on about design criteria, a lot of theorising etc etc, then someone comes
along with positive advice from a professional - which puts everyone out on
a limb because they know nothing
>
> John
>
Message 19
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|
Subject: | Re: Fwd: [Bearhawk] Pacer progress |
At 02:25 PM 6/21/2015, you wrote:
>
>Bob,
>I was at the wiring the panel planning stage four days ago. Still
>pondering the mag ground at the ignition switch for the
>P-leads. The schematic shows grounding it to the airframe. The
>shortwing guys are talking about grounding per schematic, others not.
As you wish . . . but if your not into flipping a coin,
know that grounding p-leads at both ends creates
potential ground loops for both cranking currents
to flow in the shields.
> I'm extending a few of the head set jack. The PM300 calls for
> shielded wires. Do I need to add shielding at the splice?
> Something like metal foil then shrink tube?
>
>The two solenoids are Lamar. One continuous duty. Is closed at the
>panel's master switch by completing the ground. The other is
>intermittent duty and is for the starter.
Those particular starter contactors have poor
track records. They feature low pressure mating
surfaces . . . they're a slightly modified version
of the continuous duty contactor . . . we tried them
at Cessna in the 60's . . . pain in the arse . . .
Starter contactor right next to the battery contactor?
Forgive me, I thought we were at the planning stages.
The drawing you offered was not a wiring diagram but
a rough architecture . . . not unlike the Z-figures
in the book. Building a wiring diagram around an
architecture drawing takes some time, conversation
and thought. The wire book with understanding gleaned
from a team of guys who have been there done that goes
a long way toward putting grins on your flying-fuzz when
they sign off on your rebuild. You were already at the
top of the ski jump . . . a bit late to be getting input
from the coaches.
Bob . . .
Message 20
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Subject: | Re: basic questions on terminal strips |
I do not see a nut under the ring terminals. Is there one? Ring terminals need
to be squashed between two nuts, not between a nut and plastic because plastic
will flow over time, causing the connection to loosen.
Joe
--------
Joe Gores
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=443879#443879
Message 21
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Subject: | Re: basic questions on terminal strips |
There's a washer under the terminals.
On Sun, Jun 21, 2015 at 5:10 PM, user9253 <fransew@gmail.com> wrote:
>
> I do not see a nut under the ring terminals. Is there one? Ring terminals need
to be squashed between two nuts, not between a nut and plastic because plastic
will flow over time, causing the connection to loosen.
> Joe
>
> --------
> Joe Gores
>
>
> Read this topic online here:
>
> http://forums.matronics.com/viewtopic.php?p=443879#443879
>
>
Message 22
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Subject: | Re: Fwd: [Bearhawk] Pacer progress |
> I understand that you do not recommend a Master Switch because it is a single
point of failure for the electrical system. In that case, how would the system
be configured to do away with a Master Switch?
I have never heard anyone recommend not having a master switch. There needs to
be some way to shut off power.
Many have recommended not having an avionics switch, which is an unnecessary
single point of failure.
Joe
--------
Joe Gores
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=443881#443881
Message 23
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Subject: | Re: Fwd: [Bearhawk] Pacer progress |
> I'm extending a few of the head set jack. The PM300 calls for
> shielded wires. Do I need to add shielding at the splice?
> Something like metal foil then shrink tube?
No . . . in fact, shielding of headset and microphone
wires is of little if any demonstrable benefit. Shielding
breaks certain form of noise propagation that doesn't
exist behind modern panels . . . and few legacy panels.
You could wire headsets with bare, twisted pair and microphonee
with twisted trios (assuming a PTT wire) and save yourself
a lot of fuss with shielding.
But if you choose to extend already sheiled wires, a simple
splice between signal and shield conductors is fine. You
don't need to add a shielding 'cocoon'. We often take
shielded wires through connectors with separate pins
carrying the shield(s) . . . with perhaps as much as
3" of the vulnerable wire running 'unshielded' through
the connector . . . not a problem.
Bob . . .
Message 24
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Subject: | Re: Fwd: [Bearhawk] Pacer progress |
Okay.now I understand. Was not comprehending how you could NOT have a Master Switch.
So without an avionics, switch, you have to individually switch on or
off all electronics once the master switch is turned on.
M. Haught
> On Jun 21, 2015, at 8:27 PM, user9253 <fransew@gmail.com> wrote:
>
>
>
>> I understand that you do not recommend a Master Switch because it is a single
point of failure for the electrical system. In that case, how would the system
be configured to do away with a Master Switch?
>
> I have never heard anyone recommend not having a master switch. There needs
to be some way to shut off power.
> Many have recommended not having an avionics switch, which is an unnecessary
single point of failure.
> Joe
>
> --------
> Joe Gores
>
>
>
>
> Read this topic online here:
>
> http://forums.matronics.com/viewtopic.php?p=443881#443881
>
>
>
>
>
>
>
>
>
>
Message 25
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Subject: | Re: Fwd: [Bearhawk] Pacer progress |
On 6/21/2015 8:00 PM, Robert L. Nuckolls, III wrote:
>
>
> Starter contactor right next to the battery contactor?
>
> Forgive me, I thought we were at the planning stages.
> The drawing you offered was not a wiring diagram but
> a rough architecture . . . not unlike the Z-figures
> in the book. Building a wiring diagram around an
> architecture drawing takes some time, conversation
> and thought. The wire book with understanding gleaned
> from a team of guys who have been there done that goes
> a long way toward putting grins on your flying-fuzz when
> they sign off on your rebuild. You were already at the
> top of the ski jump . . . a bit late to be getting input
> from the coaches.
>
> Bob . . .
>
As I said in my follow on post after Mark, I AM trying to do my
planning. I am new at this and don't have Mark's experience with other
machinery, so I need all the help I can get. I have a set of the same
contactors, and was planning on installing them as Mark has. What is
the problem with the starter contactor right next to the battery
contactor? Other than a vague idea of what I want on the panel, I have
not a clue as to how to get to the point of "putting grins on the
flying-fuzz when they sign off on my rebuild"? But that is my purpose.
So....how do we arrive at the wire book? What do I need to do to bring
this process along get the "coaches" engaged?
M. Haught
> *
>
>
> *
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Message 26
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Subject: | Re: Fwd: [Bearhawk] Pacer progress |
At 02:38 PM 6/21/2015, you wrote:
>Bob -
>
>Mark=99s system is well beyond =9Copportunities
>for consideration=9D =85=85but I am following his
>path th on my PA22-20 project, so want to learn
>from what Mark has done, and get your input on
>designing a system for my project. Hence, I
>asked him to post what he has done. From his
>postings, and the responses from you and the
>group, I hope to learn what to do differently, as well as what to copy.
Okay, the skeleton wire-book I published for Mark
is the baseline document for doing the best we know
how to do for your project.
>
>
>For example: I have the same contactors for my
>project, (one for starter that is not
>continuous, and one form Battery that IS
>continuous)) coupled with a Bendix ignition
>switch with a =9CStart=9D position to do away
>with the box / push button system that was originally under the pilot
=99s seat.
>Mark used a Master Switch for his syster - I
>understand that you do not recommend a Master
>Switch because it is a single point of failure
>for the electrical system. In that case, how
>would the system be configured to do away with a
>Master Switch? Would the entire electrical
>system be activated from the ignition switch
>going to a L/R or Both Mag position? I am
>hoping this will generate a very productive
>discussion that results in an electrical system
>design that I can get =9Capproved=9D for my
>project with a minimum of problems with the FAA,
>and yet, have an up to date system with modern components.
Understand. But the 'master switch' discussion was
NOT about the DC Power Master switch, clearly shown
in the baseline wirebook. What you don't find is
an avionics master switch . . . which was birthed
from poor understanding of the physics. All those
NAVCOM 300's we killed at Cessna were NOT spike-bit
by starters . . . starters do not generate spikes
of radio killing proportions . . . and RTCA knows
it. In fact, the legacy 'spike test' conducted under
DO-160 contains very little energy . . . about the
equivalent of a gnat sneeze compared to say, alternator
runaways . . .
The radios were being killed by soggy batteries
allowing engine cranking to drag the bus down to
6-7 volts combined with transistors of the era
being exceedingly vulnerable to a phenomenon
called 'second breakdown'. Conditions imposed on
our NC300's prompted the unhappy event on dozens
of radios on delivery aircraft. The AV Master switch
was a knee-jerk band-aid . . . the value of which
disappeared a few years after we started putting
them in airplanes.
See http://tinyurl.com/q5uzw78
If you find an 'avionics master' mentioned in ANY
installation manual for avionics, I'd like to know
who published it. For the past 40 years, EVERY company
I've contacted about that feature had to confess,
"We don't think it's needed either . . . it's just
that everybody has been doing it for decades . . ."
ANY piece of hardware qualified to DO-160 can easily
stand off the ravages of everything the aircraft bus
can throw at it. Starter spikes don't exist . . . I've
tracked the elusive starter-spike on everything from
C150 to BeechJets . . . they are not there.
Start with the draft wirebook. Craft your questions
based on the existence or absence of some feature
about which you need more understanding. As the
educational process moves forward, we'll edit
those drawings to match the best-we-know-how-to-do
for your project.
For Mark, we're limited to combing out a few big
tangles . . . his system is pretty much cast in
concrete.
Bob . . .
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Subject: | Re: Fwd: [Bearhawk] Pacer progress |
>For example: I have the same contactors for my project, (one for
>starter that is not continuous, and one form Battery that IS continuous))
Okay, the contactor of choice for starter
duty looks more like this . . .
http://www.aeroelectric.com/Pictures/Contactors/Starter_Contact
These devices have been common to the automotive
industry for decades and feature low area, high
pressure contacts much more suited to withstanding
starter inrush currents due to their higher closing
pressures and low mass to minimize bounce.
Location of choice is on the firewall where the
BAT terminal of hte contactor becomes the distribution
point for bringing battery+ wire to the bus.
Although, mounting under the seat is only
slightly inconvenient. But I DO recommend
the alternative form factor . . . it's much
better suited to task and will have diode
suppression built in.
Bob . . .
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Subject: | Re: Fwd: [Bearhawk] Pacer progress |
Great article, provides me with the first goals for my system, and a very go
od understanding of the logic. I have already been studying the wire book p
ages. Will print out each one and start making note and additions of my spe
cific components, plus compare them to the original schematic.
Question one is: you seemed skeptical about mounting the two contractors si
de by side right at the battery as Mark did. Why is that not desirable and w
hat are the problems?
M. Haught
Sent from my iPad
> On Junhttps://www.flypadmount.com 21, 2015, at 9:23 PM, Robert L. Nuckolls
, III <nuckolls.bob@aeroelectric.com> wrote:
>
>
>
>
> Okay, the skeleton wire-book I published for Mark
> is the baseline document for doing the best we know
> how to do for your project.
>>
>
> See http://tinyurl.com/q5uzw78
>
>
>
> Start with the draft wirebook. Craft your questions
> based on the existence or absence of some feature
> about which you need more understanding. As the
> educational process moves forward, we'll edit
> those drawings to match the best-we-know-how-to-do
> for your project.
>
> Bob . . .
>
>
>
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Subject: | Re: Fwd: [Bearhawk] Pacer progress |
Sent from my iPad
> On Jun 21, 2015, at 10:32 PM, Robert L. Nuckolls, III <nuckolls.bob@aeroel
ectric.com> wrote:
>
>> For example: I have the same contactors for my project, (one for start
er that is not continuous, and one form Battery that IS continuous))
>
> Okay, the contactor of choice for starter
> duty looks more like this . . .
>
>
>
> These devices have been common to the automotive
> industry for decades and feature low area, high
> pressure contacts much more suited to withstanding
> starter inrush currents due to their higher closing
> pressures and low mass to minimize bounce.
>
> Location of choice is on the firewall where the
> BAT terminal of hte contactor becomes the distribution
> point for bringing battery+ wire to the bus.
>
> Although, mounting under the seat is only
> slightly inconvenient. But I DO recommend
> the alternative form factor . . . it's much
> better suited to task and will have diode
> suppression built in.
>
>
>
> Bob . . .
>
>
>
==========================
=========
==========================
=========
==========================
=========
==========================
=========
>
Message 30
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Subject: | Re: Fwd: [Bearhawk] Pacer progress |
Okay.....found one the B&C site plus located your article on the use of diod
es. The B & C has diode built in and is PMA. Grounds from mounting surface
.
Thanks!
M. Haught
Sent from my iPad
> On Jun 21, 2015, at 10:32 PM, Robert L. Nuckolls, III <nuckolls.bob@aeroel
ectric.com> wrote:
>
>> For example: I have the same contactors for my project, (one for start
er that is not continuous, and one form Battery that IS continuous))
>
> Okay, the contactor of choice for starter
> duty looks more like this . . .
>
>
>
>
>
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