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0. 12:16 AM - No "Black Friday" For List Fund Raiser... (Matt Dralle)
1. 07:04 AM - Re: Z13/8 Rev Q comments (Jeff Page)
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| Subject: | No "Black Friday" For List Fund Raiser... |
Dear Listers,
Curiously, even though the number of List subscriptions are significantly up this
year, support during this year's Fund Raiser is still substantially behind
last year. There are only a couple more days left in November and the end of
the Fund Raiser is quickly approaching.
I have always preferred a non-commercial List experience as many, many members
have also expressed that they do as well. However, if the yearly fund raiser
cannot generate sufficient funds to keep the bills paid, other sources of income
might be required including some sort of advertising. Please don't let that
happen! Your personal Contribution of $20 or $30 goes a long ways to keeping
the operation a float.
Please make sure your name is on this year's List of Contributors published in
December.
The Contribution site is secure, quick, and easy:
http://www.matronics.com/contribution
Or, drop a personal check in the mail to:
Matt Dralle / Matronics
581 Jeannie Way
Livermore CA 94550
USA
Thank you in advance for your support!
Matt Dralle
Matronics Email List and Forum Administrator
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| Subject: | Re: Z13/8 Rev Q comments |
>>> Okay, 20AWG and no fuses it is.
>>
>> So assuming all these wires are 6" or less, should I use 20awg and no
>> fuses on both the diode and the relay path to the Endurance bus ?
>
> I WAS speaking of just the normal feed path through
> the diode . . . and it occurs to me that the "6-inch
> rule" would be speaking to TOTAL current pathway at
> risk . . . so strict observance of the rule would call
> for very short 20AWG conductors totalling 6" or less
> to wire the diode up between the main and e-bus.
>
> But then, that "rule" was never codified in any regulatory
> document I recall . . . but that doesn't mean it didn't
> show up on some FAA offices "green sheets". My citation
> of that practices goes back a long way. I think I first
> recall discussing it at Cessna when somebody was contemplating
> the permanent wiring of a fat zener (50W stud mounted)
> to the main bus as a transient suppressor. This was
> before the zener market gave birth to the Transorb.
>
> Is the sum total of wire from battery bus to e-bus
> through the relay must surely be longer. Further, it's
> primary reason for existence is to power a bus from
> a battery not being charged by an alternator so we'll
> not want to squander energy in voltage drops. But it
> seems that the pathway would benefit from the conventional
> protection methods at BOTH ends since that wire can be
> SOURCED either from the main bus or the battery bus.
OK. It is easy to use fuses, since I can just use one of the
positions of the fuse block on each end.
Jeff Page
Dream Aircraft Tundra #10
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