Today's Message Index:
----------------------
1. 10:47 AM - Z-12, Z-13/8 or a bit of both! (MikeDunlop)
2. 12:30 PM - Re: Z-12, Z-13/8 or a bit of both! (Robert L. Nuckolls, III)
3. 01:09 PM - Noise in damp weather (chinesespaceman)
Message 1
| INDEX | Back to Main INDEX |
| NEXT | Skip to NEXT Message |
| LIST | Reply to LIST Regarding this Message |
| SENDER | Reply to SENDER Regarding this Message |
|
| Subject: | Z-12, Z-13/8 or a bit of both! |
Initially I was going to use Z-12 for my Long-EZ system because it shows the LR-3
controller and I have the following:
B&c LR-3 alternator controller
B&C SD-8 and all the associated bits
I'm using two Bendix mags
Most probable going to use an auto alternator with the LR-3 (undecided on make
as yet)
then I was advised to use Z-13/8 (quite correctly) which shows the B&C SD-8 setup,
so my question is would it be O.K. to use a mixture of both from Z-12 and
Z-13/8.
It would be helpful to find out any pitfalls before starting this project.
Regards
Mike (U.K.)
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=362749#362749
Message 2
| INDEX | Back to Main INDEX |
| PREVIOUS | Skip to PREVIOUS Message |
| NEXT | Skip to NEXT Message |
| LIST | Reply to LIST Regarding this Message |
| SENDER | Reply to SENDER Regarding this Message |
|
| Subject: | Re: Z-12, Z-13/8 or a bit of both! |
At 12:41 PM 1/8/2012, you wrote:
>
>Initially I was going to use Z-12 for my Long-EZ system because it
>shows the LR-3 controller and I have the following:
The z-figures are intended to show ARCHITECTURE.
Parts are exemplar but not unique to that architecture.
Why Z-12? The Z-13/8 was designed to max maximum
use of the limited output of the SD-8 (no battery
contactor).
>B&c LR-3 alternator controller
>B&C SD-8 and all the associated bits
>I'm using two Bendix mags
>Most probable going to use an auto alternator with the LR-3
>(undecided on make as yet)
It needs to be an alternator compatible with external
regulation.
>then I was advised to use Z-13/8 (quite correctly) which shows the
>B&C SD-8 setup, so my question is would it be O.K. to use a mixture
>of both from Z-12 and Z-13/8.
What features of 12 need to be incorporated into 13?
The style of ignition systems is irrelevant to the
discussion.
>It would be helpful to find out any pitfalls before starting this project.
I am certain that there have been dozens of 'variations
on a theme' wherein items from various documents and
architectures were cherry-picked and assembled into
a new architecture. Most perform as advertised . . . assuming
the 'chef' really understands the significance of the
cherry-picking.
Start with Z-13/8 and tell us what items depicted don't
fit your planned suite of hardware.
Bob . . .
Message 3
| INDEX | Back to Main INDEX |
| PREVIOUS | Skip to PREVIOUS Message |
| NEXT | Skip to NEXT Message |
| LIST | Reply to LIST Regarding this Message |
| SENDER | Reply to SENDER Regarding this Message |
|
| Subject: | Noise in damp weather |
Hi,
I am hoping someone can give me some pointers in finding and eliminating a problem.
I have a french built wooden aircraft with 0-200, B&C starter and 30Amp alternator.
Narco radio and transponder with intercom. The intercom is wired with shielded
wiring as per the manufacturers instructions.
This aircraft uses a negative earth, with a switch that is cable actuated.
The B&C Alternator is wired as per the manufacturers diagram, using a large capacitor
on the DC Output.
All of the lighting and as many earths as I could find have been wired independently
to a "forest of earth" on the inside of the firewall, connected by a brass
bolt to another earth forest on the engine side of the firewall. A heavy earth
cable then runs from the 5/16" brass bolt to the engine.
There is a skyflash strobe with strobe heads top and bottom of fuz. On most frequencies
there is a sharp crack through the radio as ea ch strobe discharges.
Never got to the bottom of this problem, despite various attempts.
The few times, including today that I have been caught in rain or very damp weather
and have put the nav and/or landing light on I am getting a loud buzz / shriek
through the radio into the headsets. This is normally silent in dry weather.
On finals today, the radio went dead, I thought a fuse had blown, so I switched
it off. When landed and clear the active I switched it back on and it worked
ok.
I would appreciate any ideas on where to start looking for the source of this noise
in the wet weather.
There is never any noise from the mags or the alternator.
Thanks
Gavin
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=362765#362765
Other Matronics Email List Services
These Email List Services are sponsored solely by Matronics and through the generous Contributions of its members.
-- Please support this service by making your Contribution today! --
|