 |
Matronics Email Lists
Web Forum Interface to the Matronics Email Lists
|
| View previous topic :: View next topic |
| Author |
Message |
jetech
Joined: 14 Dec 2008
Posts: 15
|
 Posted: Thu Mar 26, 2009 3:50 pm Post subject: PA-22 system |
 |
|
After looking at the Z-13/8 schematic and trying to figure out the best layout for the old tripacer I think I am close to having a initial plan.
For those not familiar with the PA-22, there is an electrical box mounted under the pilots seat on the front side of the seat structure. This box houses the original starter contactor, start button, regulator, and some fuses. The battery is located under the co-pilots seat.
I would like to fit the batt bus (FH-6 block), Batt contactor, Starter contactor, push to start, alternator current limiter, two shunts main/aux, and the relay for the HD E-buss circuit under the seat. The push to start circuit will be hooked from the main bus side of the batt contactor to a CB then to the starter contactor. The CB will also be with the under seat components.
We removed the original brake cylinder from under the pilots seat so I am trying to figure out the best method to get these components under the seat. I would like to find some avionics tray slides and fit everything on a slide out tray, width would be limited but there would be some depth.
The starter and alternator cables will run forward 70" and 80" to their units (Sky-tec and L-40). The
The behind the panel components will be the main buss, E-bus, and F1 test receptacle.
On the cabin side of the firewall will be the main controller/regulator (LR3C-14), Aux regulator (PMR1C and OV kit), and ground system (GB24).
The battery will have its original local ground.
I have a question:
Can the circuit that runs from the SD-8 shunt to the batt side of the batt contactor instead be fused at the batt bus using an ATC fuse?
I welcome any suggestions to what I have planned so far.
| | - The Matronics AeroElectric-List Email Forum - | | | Use the List Feature Navigator to browse the many List utilities available such as the Email Subscriptions page, Archive Search & Download, 7-Day Browse, Chat, FAQ, Photoshare, and much more:
http://www.matronics.com/Navigator?AeroElectric-List |
|
|
|
| Back to top |
|
 |
BobsV35B(at)aol.com
Guest
|
| Posted: Mon Mar 30, 2009 5:48 am Post subject: PA-22 system |
|
|
Good Morning jetech,
Just out of curiosity, do you plan on getting a local FAA approval via the 337 route for that modification or do you think it meets the criteria for a minor alteration?
Happy Skies
Old Bob
AKA
Bob Siegfried
Ancient Aviator
628 West 86th Street
Downers Grove, IL 60516
630 985-8502
Stearman N3977A
Brookeridge Air Park LL22
In a message dated 3/26/2009 6:54:02 P.M. Central Daylight Time, av8tor(at)hughes.net writes:
| Quote: | --> AeroElectric-List message posted by: "jetech" <av8tor(at)hughes.net>
After looking at the Z-13/8 schematic and trying to figure out the best layout for the old tripacer I think I am close to having a initial plan.
For those not familiar with the PA-22, there is an electrical box mounted under the pilots seat on the front side of the seat structure. This box houses the original starter contactor, start button, regulator, and some fuses. The battery is located under the co-pilots seat.
I would like to fit the batt bus (FH-6 block), Batt contactor, Starter contactor, push to start, alternator current limiter, two shunts main/aux, and the relay for the HD E-buss circuit under the seat. The push to start circuit will be hooked from the main bus side of the batt contactor to a CB then to the starter contactor. The CB will also be with the under seat components.
We removed the original brake cylinder from under the pilots seat so I am trying to figure out the best method to get these components under the seat. I would like to find some avionics tray slides and fit everything on a slide out tray, width would be limited but there would be some depth.
The starter and alternator cables will run forward 70" and 80" to their units (Sky-tec and L-40). The
The behind the panel components will be the main buss, E-bus, and F1 test receptacle.
On the cabin side of the firewall will be the main controller/regulator (LR3C-14), Aux regulator (PMR1C and OV kit), and ground system (GB24).
The battery will have its original local ground.
I have a question:
Can the circuit that runs from the SD-8 shunt to the batt side of the batt contactor instead be fused at the batt bus using an ATC fuse?
I welcome any suggestions to what I have planned so far.
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=236301#236301
|
A Good Credit Score is 700 or Above. See yours in just 2 easy steps!
| | - The Matronics AeroElectric-List Email Forum - | | | Use the List Feature Navigator to browse the many List utilities available such as the Email Subscriptions page, Archive Search & Download, 7-Day Browse, Chat, FAQ, Photoshare, and much more:
http://www.matronics.com/Navigator?AeroElectric-List |
|
|
|
| Back to top |
|
|
nuckolls.bob(at)aeroelect
Guest
|
| Posted: Mon Mar 30, 2009 6:27 am Post subject: PA-22 system |
|
|
At 06:50 PM 3/26/2009, you wrote:
| Quote: |
After looking at the Z-13/8 schematic and trying to figure out the
best layout for the old tripacer I think I am close to having a initial plan.
For those not familiar with the PA-22, there is an electrical box
mounted under the pilots seat on the front side of the seat
structure. This box houses the original starter contactor, start
button, regulator, and some fuses. The battery is located under the
co-pilots seat.
I would like to fit the batt bus (FH-6 block), Batt contactor,
Starter contactor, push to start, alternator current limiter, two
shunts main/aux, and the relay for the HD E-buss circuit under the
seat. The push to start circuit will be hooked from the main bus
side of the batt contactor to a CB then to the starter contactor.
The CB will also be with the under seat components.
We removed the original brake cylinder from under the pilots seat so
I am trying to figure out the best method to get these components
under the seat. I would like to find some avionics tray slides and
fit everything on a slide out tray, width would be limited but there
would be some depth.
The starter and alternator cables will run forward 70" and 80" to
their units (Sky-tec and L-40). The
The behind the panel components will be the main buss, E-bus, and F1
test receptacle.
On the cabin side of the firewall will be the main
controller/regulator (LR3C-14), Aux regulator (PMR1C and OV kit),
and ground system (GB24).
The battery will have its original local ground.
I have a question:
Can the circuit that runs from the SD-8 shunt to the batt side of
the batt contactor instead be fused at the batt bus using an ATC fuse?
I welcome any suggestions to what I have planned so far.
|
Before we launch into details of the implementation, have
you flown your proposal by the local FAA and enlisted
the assistance of an AI?
I had a customer some years ago with a very nice
Tri-Pacer but with a threadbare, arcane and
minimalist electrical system. He wanted to put
Z13/8 in the airplane. He might as well have wanted
to replace the engine with a turbofan. The
system was going to cost about $1200 in parts
to install . . . and $50K or so in paperwork
to get an STC.
He ended up putting an L40 on with a 337 and
rewired all the original hardware with 22759.
That only cost him $2000.
Bob . . .
----------------------------------------)
( . . . a long habit of not thinking )
( a thing wrong, gives it a superficial )
( appearance of being right . . . )
( )
( -Thomas Paine 1776- )
----------------------------------------
| | - The Matronics AeroElectric-List Email Forum - | | | Use the List Feature Navigator to browse the many List utilities available such as the Email Subscriptions page, Archive Search & Download, 7-Day Browse, Chat, FAQ, Photoshare, and much more:
http://www.matronics.com/Navigator?AeroElectric-List |
|
|
|
| Back to top |
|
|
jetech
Joined: 14 Dec 2008
Posts: 15
|
| Posted: Mon Mar 30, 2009 4:54 pm Post subject: Re: PA-22 system |
|
|
We plan to present an entire package to the FAA for the electrical upgrade including removing the vacuum pump and installing the SD-8. I am still compiling the information to make the best argument we can. We will take whatever route they advise as far as paperwork is concerned.
Bob
I am going on your recommendation to present a detailed paperwork package that will hopefully put put things in our favor.
This is our company airplane, we are an aircraft maintenance business, My partner is an IA and DAR so the paperwork will be free as long as an STC isn't involved. We hope it will all be done on 337.
Our desire is to update this plane and pave the way for others to do the same. If approved we will post the paperwork on the short wing piper club site so others can use it without cost just as Bob has.
| | - The Matronics AeroElectric-List Email Forum - | | | Use the List Feature Navigator to browse the many List utilities available such as the Email Subscriptions page, Archive Search & Download, 7-Day Browse, Chat, FAQ, Photoshare, and much more:
http://www.matronics.com/Navigator?AeroElectric-List |
|
|
|
| Back to top |
|
|
nuckolls.bob(at)aeroelect
Guest
|
| Posted: Tue Mar 31, 2009 11:42 am Post subject: PA-22 system |
|
|
At 07:54 PM 3/30/2009, you wrote:
| Quote: |
We plan to present an entire package to the FAA for the electrical
upgrade including removing the vacuum pump and installing the SD-8.
I am still compiling the information to make the best argument we
can. We will take whatever route they advise as far as paperwork is concerned.
Bob
I am going on your recommendation to present a detailed paperwork
package that will hopefully put put things in our favor.
This is our company airplane, we are an aircraft maintenance
business, My partner is an IA and DAR so the paperwork will be free
as long as an STC isn't involved. We hope it will all be done on 337.
Our desire is to update this plane and pave the way for others to do
the same. If approved we will post the paperwork on the short wing
piper club site so others can use it without cost just as Bob has.
|
Oh yeah, I remember talking with you about this
project. Tell you what. If you'll send me your
proposed wiring diagrams I'll see if I can put out
a wire-book that accurately describes your proposal.
I'd also be willing to review your arguments document
for elements of technical accuracy and bureaucratic
persuasion.
What we're dealing with here has nothing to do
with good engineering or flight-worthy design.
Bob . . .
----------------------------------------)
( . . . a long habit of not thinking )
( a thing wrong, gives it a superficial )
( appearance of being right . . . )
( )
( -Thomas Paine 1776- )
----------------------------------------
| | - The Matronics AeroElectric-List Email Forum - | | | Use the List Feature Navigator to browse the many List utilities available such as the Email Subscriptions page, Archive Search & Download, 7-Day Browse, Chat, FAQ, Photoshare, and much more:
http://www.matronics.com/Navigator?AeroElectric-List |
|
|
|
| Back to top |
|
|
jetech
Joined: 14 Dec 2008
Posts: 15
|
| Posted: Tue Mar 31, 2009 1:23 pm Post subject: Re: PA-22 system |
|
|
Ok Bob
That sounds great. I will finish what I have and then send you a copy of the packet.
It may be a few weeks, I don't get much time to work on it.
| | - The Matronics AeroElectric-List Email Forum - | | | Use the List Feature Navigator to browse the many List utilities available such as the Email Subscriptions page, Archive Search & Download, 7-Day Browse, Chat, FAQ, Photoshare, and much more:
http://www.matronics.com/Navigator?AeroElectric-List |
|
|
|
| Back to top |
|
|
|
|
You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot vote in polls in this forum
You cannot attach files in this forum
You can download files in this forum
|
Powered by phpBB © 2001, 2005 phpBB Group
|
Get Email Distribution Too!
FAQ
Search
Memberlist
Usergroups
Register
Profile
Log in to check your private messages
Log in
