Today's Message Index:
----------------------
1. 03:31 AM - Re: gascolator (LarryRobertHelming)
2. 03:33 AM - Re: KMD 150 (LarryRobertHelming)
3. 04:07 AM - Re: gascolator (Benford2@aol.com)
4. 05:43 AM - Re: gascolator (Gary Casey)
5. 06:24 AM - Re: gascolator (Brian Lloyd)
6. 09:11 AM - Re: My Visio 2000 Stencil (Dave)
7. 09:30 AM - Re: gascolator (DAVID REEL)
8. 05:08 PM - Re: KMD 150 (larry)
9. 06:22 PM - Re: My Visio 2000 Stencil (Chad Robinson)
Message 1
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--> AeroElectric-List message posted by: "LarryRobertHelming" <lhelming@sigecom.net>
----- Original Message -----
From: <KahnSG@aol.com>
Subject: AeroElectric-List: gascolator
> --> AeroElectric-List message posted by: KahnSG@aol.com
>
> I'm working on an experimental plane that has the gascolator between the
> Weldon high pressure electric pump and the mechanical fuel pump. It has a
PS5C
> pressure carb.
> I always have seen the gascolator on the low pressure (suction) side of
the
> fuel pumps.
> Has anyone seen this type of setup for a pressure carb?
> Is it correct?
> Any comments?
>
> Steve
(((((((((()))))))))))))
Yes, this is how Vans Aircraft design their latest planes. Pressure is
needed to push gas into the gascolator when you periodically purge/clean the
gascolator. Do this by turning on the electric pump and pushing on the
release valve of the gascolator.
Indiana Larry, RV7 TipUp "SunSeeker"
Message 2
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--> AeroElectric-List message posted by: "LarryRobertHelming" <lhelming@sigecom.net>
Why would you want to do that? Advantages??
Indiana Larry
----- Original Message -----
From: "larry" <larry@grrok.com>
Subject: Re: AeroElectric-List: KMD 150
> --> AeroElectric-List message posted by: larry <larry@grrok.com>
>
> Why not use a 12 vdc battery in your system between the power supply and
> the KMD 150.
>
> At 10:04 PM 7/23/2004, you wrote:
> >--> AeroElectric-List message posted by: "Mickey Billings"
<mbilli@cox.net>
> >
> >Does anyone know if I can use a fair DC power supply in the airplane to
> >power my KMD 150 GPS without damaging the GPS in order to spend some time
> >learning some of it's features? The power supply I have is 12v DC with
no
> >other adjustments. I am however willing to purchase another unit if
necessary.
> >
> >Many Thanks
> >
> >Mickey Billings RV&
> >
> >
>
>
Message 3
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--> AeroElectric-List message posted by: Benford2@aol.com
In a message dated 7/24/2004 6:05:28 PM Mountain Daylight Time,
KahnSG@aol.com writes:
>
> I'm working on an experimental plane that has the gascolator between the
> Weldon high pressure electric pump and the mechanical fuel pump. It has a
> PS5C
> pressure carb.
> I always have seen the gascolator on the low pressure (suction) side of the
> fuel pumps.
> Has anyone seen this type of setup for a pressure carb?
> Is it correct?
> Any comments?
>
> Steve
>
Probably not a good idea. It would be better to mount it upstream of the
high pressure pump.
Ben Haas N801BH
Message 4
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--> AeroElectric-List message posted by: "Gary Casey" <glcasey@adelphia.net>
<<I'm working on an experimental plane that has the gascolator between the
Weldon high pressure electric pump and the mechanical fuel pump. It has a
PS5C pressure carb.
I always have seen the gascolator on the low pressure (suction) side of the
fuel pumps.
Has anyone seen this type of setup for a pressure carb? Is it correct?
Any comments?
Steve>>
As far as I know that is the normal position. The gascolator is on the
suction side of the engine-driven pump, but is pressurized by the electric
pump. I'm not sure if all gascolators are rated for pressurization at any
pressure, though. I believe that the pressure in the system is between 20
and 30 psi, but I'm also not sure about that.
Gary Casey
Message 5
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--> AeroElectric-List message posted by: Brian Lloyd <brianl@lloyd.com>
KahnSG@aol.com wrote:
> I'm working on an experimental plane that has the gascolator between the
> Weldon high pressure electric pump and the mechanical fuel pump.
> ...
> Is it correct?
In my opinion, no. Water and contaminants should be able to get to the gascolator
by gravity feed. That is why the gascolator is at the low-point in the fuel
system. Crap in the tanks runs downhill to the gascolator where you can drain
it out before it even gets to the pump.
If you put the electric pump in the system before the gascolator, the springs in
the valves in the pump will hold the valves closed against the slight pressure
of the water and contaminants so they won't reach the gascolator until after
you turn on the electric fuel pump and start the engine.
OTOH, if you turn on the electric pump before draining the gascolator the pump
will force contaminants into the gascolator that might not otherwise get there
until later so I can see an advantage there. Just be careful about the high-pressure
jet that will come out of the gascolator drain if the electric fuel pump
is turned on.
Upon further reflection I think both will work so long as you understand and accommodate
their limitations.
As for "high pressure" and pressure carbs, are you sure it needs "high pressure"?
The pressure carbs I deal with operate at 5-7 PSI input pressure normally.
Have you checked the manufacturer's recommendation for proper input pressure?
--
Brian Lloyd 6501 Red Hook Plaza
brianl@lloyd.com Suite 201
http://www.lloyd.com St. Thomas, VI 00802
+1.340.998.9447 (voice) +1.270.912.0788 (fax)
There is a time to laud one's country and a time to protest.
A good citizen is prepared to do either as the need arises.
Message 6
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| Subject: | Re: My Visio 2000 Stencil |
--> AeroElectric-List message posted by: "Dave" <dave@bestnetpc.com>
Chad, This sounds interesting but I can only find a "pay for subscription" link for Visio 2000-2003. Is there a free program anywhere? I've looked at www.downloads.com but there's so many to choose from. A few have a free try, $300 to buy download but that would be annoying. Any info?
Dave
N118DG
----- Original Message -----
From: Chad Robinson
To: aeroelectric-list@matronics.com
Sent: Sunday, July 18, 2004 11:18 PM
Subject: AeroElectric-List: My Visio 2000 Stencil
--> AeroElectric-List message posted by: Chad Robinson <crj@lucubration.com>
Hello all,
I've received numerous requests in the past few days for my Visio stencil of
the AeroElectric symbols. To anybody that may be looking for this file, please
drop by
http://www.lucubration.com/aero
and you can download the file from there. I ask only that you recognize Bob
Nuckolls' original efforts in creating these symbols in AutoCAD, and that if
you make changes to the stencil that you recontribute them so I can post
updated versions for everybody's benefit.
A few comments:
1. To use the stencil you need any edition of Visio 2000 or higher. Save the
stencil somewhere you can find it. Open Visio, create a new drawing, and click
File->Open Stencil. Browse for where you saved the file and select it. Then
drag symbols to your drawing and use the dynamic wire connector to draw wires.
2. You can adjust the thickness of wires and add labels to indicate their wire
sizes. For an example of this, see my diagram in Chapter 22 of the "Orion"
section of my site.
3. When you save and close your drawing, then re-open it, Visio should find
the stencil again as long as you haven't moved it.
4. Some of the symbols aren't quite perfect, especially with respect to the
text labels. Sometimes you have to click once and start typing to change a
label, and sometimes you have to click twice (but NOT double-click, wait a
second between clicks). For an example of this, see the battery or fuse
symbols, or the switches.
Regards,
Chad
Message 7
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--> AeroElectric-List message posted by: "DAVID REEL" <dreel@cox.net>
I'd suggest a search of the RV list on the gascolator subject Steve. It's not
an electrical problem. Some folks, myself included, even think they are often
unnecessary.
do not archive
Dave Reel - RV8A
Message 8
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--> AeroElectric-List message posted by: larry <larry@grrok.com>
This way you know that your are supplying clean power to the unit.
At 03:36 AM 7/25/2004, you wrote:
>--> AeroElectric-List message posted by: "LarryRobertHelming"
><lhelming@sigecom.net>
>
>Why would you want to do that? Advantages??
>
>Indiana Larry
>
>
>----- Original Message -----
>From: "larry" <larry@grrok.com>
>To: <aeroelectric-list@matronics.com>
>Subject: Re: AeroElectric-List: KMD 150
>
>
> > --> AeroElectric-List message posted by: larry <larry@grrok.com>
> >
> > Why not use a 12 vdc battery in your system between the power supply and
> > the KMD 150.
> >
> > At 10:04 PM 7/23/2004, you wrote:
> > >--> AeroElectric-List message posted by: "Mickey Billings"
><mbilli@cox.net>
> > >
> > >Does anyone know if I can use a fair DC power supply in the airplane to
> > >power my KMD 150 GPS without damaging the GPS in order to spend some time
> > >learning some of it's features? The power supply I have is 12v DC with
>no
> > >other adjustments. I am however willing to purchase another unit if
>necessary.
> > >
> > >Many Thanks
> > >
> > >Mickey Billings RV&
> > >
> > >
> >
> >
>
>
Message 9
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| Subject: | Re: My Visio 2000 Stencil |
--> AeroElectric-List message posted by: Chad Robinson <crj@lucubration.com>
Dave wrote:
> --> AeroElectric-List message posted by: "Dave" <dave@bestnetpc.com>
>
> Chad, This sounds interesting but I can only find a "pay for subscription"
> link for Visio 2000-2003. Is there a free program anywhere? I've looked at
> www.downloads.com but there's so many to choose from. A few have a free
> try, $300 to buy download but that would be annoying. Any info?
Visio is indeed a commercial product currently sold by Microsoft. It's one of
their better products, actually - they didn't write it, they purchased it from
the original makers (Visio the company) because it was the best flowcharting
product on the market and they wanted in.
There is a 30-day evaluation for the product at:
http://office.microsoft.com/home/office.aspx?assetid=FX01085798
(click Trial Version).
Visio Standard costs $200. You can get older versions on eBay for less than
half that (I saw some quotes as low as $60) but be sure you're buying a
legitimate version. Standard Edition is almost certainly all you need.
Regards,
Chad
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