Today's Message Index:
----------------------
1. 04:54 AM - Re: 12 power source for shop (baileys)
2. 05:39 AM - Re: 12 power source for shop (VideoFlyer@aol.com)
3. 06:41 AM - Re: Zenith-List Digest: 24 Msgs - 01/21/05 (Garrou, Douglas)
4. 08:02 AM - Re: Re: Zenith-List Digest: 24 Msgs - 01/21/05 (cgalley)
5. 08:32 PM - quite a website, Andre ! (CH701) (Jon Croke)
6. 09:02 PM - Fuel Pumps, Low Wings, and Selector Valves; 601XL (Blair, Heath)
7. 09:41 PM - Re: Fuel Pumps, Low Wings, and Selector Valves; 601XL (Jack Russell)
Message 1
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| Subject: | Re: 12 power source for shop |
--> Zenith-List message posted by: "baileys" <baileys@ktis.net>
Hello David,
Earlier PC power supplies were not standardized the way they are today. I seem
to remember that there was a interlock circuit built into the PC to protect the
motherboard. A certain condition had to be met before the power supply would
come on. I can't tell you more than that about it.
Today they are all standardized of a type called "switching" power supplies internally
they can have some very high voltages so treat them with great respect.
There is a write up about the things at http://computer.howstuffworks.com/power-supply.htm also if you go to this site; http://www.nutsvolts.com/index.html and do a search on "PC Power supply" you will find an article in PDF format which will give you a lot more information. Most PC power supplies don't provide a whole lot of power so depending on your needs you might consider a 12 volt car battery with a trickle charger. You can't get a much better filter than a battery and they will provide a lot of amps for short periods of time.
I have told you just about everything I know about power supplies and I hope it
helps.
Bob B.
Do Not Archive
----- Original Message -----
From: David Barth
To: zenith-list@matronics.com
Sent: Friday, January 21, 2005 4:40 PM
Subject: Re: Zenith-List: 12 power source for shop
--> Zenith-List message posted by: David Barth <davids601xl@yahoo.com>
Thanks for all who supplied their thoughts on this.
David
do not archive
cgalley <cgalley@qcbc.org> wrote:
--> Zenith-List message posted by: "cgalley"
It is a switching power supply and it only works with a certain load. It
will not work if you have just a digital ohm meter across the leads.
David Barth
601 XL Plansbuilder 15% done?
Working on Wings
www.ch601.org
---------------------------------
Message 2
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| Subject: | Re: 12 power source for shop |
--> Zenith-List message posted by: VideoFlyer@aol.com
I would seriously consider a Deep Cycle Marine battery.
Message 3
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| Subject: | RE: Zenith-List Digest: 24 Msgs - 01/21/05 |
--> Zenith-List message posted by: "Garrou, Douglas" <dgarrou@hunton.com>
Please, please, please tell me you're serious. I have a thing about trespassers
on 4-wheelers. I think I could be talked into donating a video camera to film
these events.
DO NOT ARCHIVE
Doug Garrou
Chief Unskilled Laborer, Project 801
www.garrou.com
-----Original Message-----
You haven't seen the forward facing paint ball gun barrels on each wing to shoot
at trespassers on our game ranch in Western Nebraska. They will be used for
moving targets since most of them are on snowmobiles or 4-wheelers. Just call
the Sheriff and tell him to look for the guys with the big, red blotches on
their clothing.
Happy Building,
Scott Laughlin
DO NOT ARCHIVE
Message 4
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| Subject: | Re: RE: Zenith-List Digest: 24 Msgs - 01/21/05 |
--> Zenith-List message posted by: "cgalley" <cgalley@qcbc.org>
Did I see paint ball guns on your struts?
----- Original Message -----
From: "Garrou, Douglas" <dgarrou@hunton.com>
Subject: Zenith-List: RE: Zenith-List Digest: 24 Msgs - 01/21/05
> --> Zenith-List message posted by: "Garrou, Douglas" <dgarrou@hunton.com>
>
> Please, please, please tell me you're serious. I have a thing about
trespassers on 4-wheelers. I think I could be talked into donating a video
camera to film these events.
>
> DO NOT ARCHIVE
>
> Doug Garrou
> Chief Unskilled Laborer, Project 801
> www.garrou.com
>
> -----Original Message-----
> You haven't seen the forward facing paint ball gun barrels on each wing to
shoot
> at trespassers on our game ranch in Western Nebraska. They will be used
for
> moving targets since most of them are on snowmobiles or 4-wheelers. Just
call
> the Sheriff and tell him to look for the guys with the big, red blotches
on
> their clothing.
>
> Happy Building,
> Scott Laughlin
>
> DO NOT ARCHIVE
>
>
Message 5
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| Subject: | quite a website, Andre ! (CH701) |
--> Zenith-List message posted by: "Jon Croke" <jon@joncroke.com>
701 builders:
You will get a kick out of this: click on the picture at www.ch701.com (courtesy of Andre (Netherlands) and his new, striking 701 )
do not archive
Message 6
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| Subject: | Fuel Pumps, Low Wings, and Selector Valves; 601XL |
--> Zenith-List message posted by: "Blair, Heath" <HBlair@chartercom.com>
> I am building a 601XL with a friend who is building a
> 701 in the same garage. It has come time to start
> closing in the wing for the 601. After a long
> discussion I thought we could use some group advise.
>
> Why is there not an option to run off of both tanks in
> the 601? Is this a bad or good idea? It seems like it
> would be safer with both tanks feeding the engine.
> Especially if you plan on rolling the plane or if you
> run low on fuel.
>
> The tanks need to push fuel up hill to the selector
> valve. Would it be a good idea to add a fuel pump to
> each tank immediately between the number 2 and 3 nose
> rib or somewhere close to keep a vapor lock situation
> from forming? Maybe it would be a good idea not to
> locate the fuel selector valve so high in the cock
> pit; most pipers have the selector valve close to the
> floor.
>
> Keep in mind I plan on running the aircraft with a
> Jabiru 3300 and it needs to be able to fly upside down
> for a moment. Thoughts are appreciated.
>
> You can see the project on my site at:
> http://flyultralites.com
>
> the Active page starts here:
>
> http://flyultralites.com/project1.html
>
> Thanks,
>
> Heath
Message 7
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| Subject: | Re: Fuel Pumps, Low Wings, and Selector Valves; 601XL |
--> Zenith-List message posted by: Jack Russell <clojan@sbcglobal.net>
Heath: There was quite a bit of discussion on this subject a while back. Check
the archives. I still don't have a definite answer and won't until I fly my
XL with a right left both and one facet fuel pump in front of that. Some say that
you can't have a "both" in a low wing because in a turn the low wing with
a low fuel level will send air to your pump and since air is easier to push than
fuel the other tank won't supply. I have checked with my tech adviser and several
A&P's and they don't think it is a problem. Production low wings don't
have a "both". Some of the builders have done the fuel pump in each wing thing
but I plan on running mine the way I have it set up. I think that since the tanks
set 4 ribs "up" in the wing that I will have some head pressure from the
tank. This I will be able to test when I start to fill with fuel. I don't think
it will be a problem with the tanks full and I plan on testing the turn theory
with low tanks about 4000' above the airport duri
ng the
test flight phase. If I find a problem I can block off the "both" placard on the
valve and turn it into a left right. Whatever you decide to do, keep in mind
that fuel systems is the #1 problem in home builts for engine failure. Jack
in Clovis Ca
Jack Russell -Clovis CA
601 XL Jabiru 3300
Progress update at:
http://www.geocities.com/clojan@sbcglobal.net/zodiacbarn.html
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