Today's Message Index:
----------------------
1. 07:14 AM - fuel pump 701 (frank goodnight)
2. 07:25 AM - Re: fuel pump 701 (Doug MacDonald)
3. 07:57 AM - Re: fuel pump 701 (frank goodnight)
4. 08:14 AM - Re: fuel pump 701 (fritz)
5. 08:24 AM - Re: fuel pump 701 (Curt Thompson)
6. 08:43 AM - Re: fuel pump 701 (frank goodnight)
7. 08:56 AM - Re: fuel pump 701 (MacDonald Doug)
8. 09:32 AM - Re: fuel pump 701 (fritz)
9. 09:33 AM - Re: fuel pump 701 (Dan Wilde)
10. 09:42 AM - Re: fuel pump 701 (fritz)
11. 09:53 AM - Re: fuel pump 701 (Doug MacDonald)
12. 12:08 PM - Re: fuel pump 701 (NYTerminat@aol.com)
Message 1
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Hi ,
My question is-- Do most of you fly with the aux electric
fuel pump running all the time , or turn it off after takeoff?
So far I have left mine on all the time.
Frank Goodnight
701 912ULS about 2 hrs.
Fayetteville , AR
Message 2
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| Subject: | Re: fuel pump 701 |
What aux fuel pump? I did fuel flow test on my 701 and found an aux pump wa
s unnecessary. Standard practice would be to only use the aux pump when hig
h angle of attack flight is anticipated, ie:during takeoff and possibly duri
ng landing.
Doug M
CH-701 from scratch
NW Ontario, Canada
Sent from my iPad
On 2013-01-20, at 9:13 AM, frank goodnight <frank.goodnight@att.net> wrote:
>
> <--static--liam_heartbubbles_bottomleft.jpg>
> Hi ,
> My question is-- Do most of you fly with the aux electric
> fuel pump running all the time , or turn it off after takeoff?
>
> So far I have left mine on all the time.
>
> Frank Goodnight
> 701 912ULS about 2 hrs.
> Fayetteville , AR
Message 3
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| Subject: | Re: fuel pump 701 |
Hi Doug,
I mounted a faucet electric fuel pump just forward of the fuel control on the
cabin
floor. My thoughts were that it might help if I got into a vapor lock situation
when
hot and high with auto fuel. My other planes have used this sys , with a pluse
type
engine pump that is operated off changes in induction pressure. I'm new to the
912
and the 701 so everything is a learning experience for me. Thanks for your
thoughts
and intrest.
Frank
________________________________
From: Doug MacDonald <dougsnash@yahoo.com>
Sent: Sun, January 20, 2013 9:25:22 AM
Subject: Re: Zenith701801-List: fuel pump 701
What aux fuel pump? I did fuel flow test on my 701 and found an aux pump was
unnecessary. Standard practice would be to only use the aux pump when high
angle of attack flight is anticipated, ie:during takeoff and possibly during
landing.
Doug M
CH-701 from scratch
NW Ontario, Canada
Sent from my iPad
On 2013-01-20, at 9:13 AM, frank goodnight <frank.goodnight@att.net> wrote:
<--static--liam_heartbubbles_bottomleft.jpg>
>Hi ,
>My question is-- Do most of you fly with the aux electric
>fuel pump running all the time , or turn it off after takeoff?
>
>
> So far I have left mine on all the time.
>
>
>Frank Goodnight
>701 912ULS about 2 hrs.
>Fayetteville , AR
Message 4
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| Subject: | Re: fuel pump 701 |
not good
----- Original Message -----
From: "Doug MacDonald" <dougsnash@yahoo.com>
Sent: Sunday, January 20, 2013 10:24 AM
Subject: Re: Zenith701801-List: fuel pump 701
What aux fuel pump? I did fuel flow test on my 701 and found an aux pump
was unnecessary. Standard practice would be to only use the aux pump when
high angle of attack flight is anticipated, ie:during takeoff and possibly
during landing.
Doug M
CH-701 from scratch
NW Ontario, Canada
Sent from my iPad
On 2013-01-20, at 9:13 AM, frank goodnight <frank.goodnight@att.net> wrote:
>
> <--static--liam_heartbubbles_bottomleft.jpg>
> Hi ,
> My question is-- Do most of you fly with the aux electric
> fuel pump running all the time , or turn it off after takeoff?
>
> So far I have left mine on all the time.
>
> Frank Goodnight
> 701 912ULS about 2 hrs.
> Fayetteville , AR
Message 5
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Frank,
Are you running a return line from the fuel manifold back to the top of the
tank?
Curt
From: owner-zenith701801-list-server@matronics.com
[mailto:owner-zenith701801-list-server@matronics.com] On Behalf Of frank
goodnight
Sent: Sunday, January 20, 2013 7:14 AM
Subject: Zenith701801-List: fuel pump 701
Hi ,
My question is-- Do most of you fly with the aux electric
fuel pump running all the time , or turn it off after takeoff?
So far I have left mine on all the time.
Frank Goodnight
701 912ULS about 2 hrs.
Fayetteville , AR
Message 6
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| Subject: | Re: fuel pump 701 |
Hi Curt ,
I am not running a return line back to the tank, However the elect pump does not
have enough pressure to over come the needle valve even when both pumps are
working.
Your thoughts please.
Frank
________________________________
From: Curt Thompson <charlievictor102@hotmail.com>
Sent: Sun, January 20, 2013 10:24:26 AM
Subject: RE: Zenith701801-List: fuel pump 701
Frank,
Are you running a return line from the fuel manifold back to the top of the
tank?
Curt
From:owner-zenith701801-list-server@matronics.com
[mailto:owner-zenith701801-list-server@matronics.com] On Behalf Of frank
goodnight
Sent: Sunday, January 20, 2013 7:14 AM
Subject: Zenith701801-List: fuel pump 701
Hi ,
My question is-- Do most of you fly with the aux electric
fuel pump running all the time , or turn it off after takeoff?
So far I have left mine on all the time.
Frank Goodnight
701 912ULS about 2 hrs.
Fayetteville , AR
Message 7
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| Subject: | Re: fuel pump 701 |
Fritz, do you mean the absence of an auxiliary fuel pump on my plane is not
good?=0AHere in Canada a fuel flow test is mandatory before first flight.
I'm traveling for work right now so I don't have the documentation with me
but if I recall, at a climb angle of 17 degrees, I had two times the full p
ower fuel requirement of my engine available at the carbs using strictly gr
avity flow. Much above 17 degrees and the fuel tanks get too close to the s
ame level as the engine fuel pump to provide adequate gravity flow. Fortuna
tely, 17 degrees is more than adequate for a safe climb. Given these number
s, I am satisfied flying without an auxiliary fuel pump.=0A-=0AUltimately
, however, we all must decide just how much redundancy we need in our plane
s.- Each to their own, I suppose.=0A-=0ADoug M=0A=0A-=0AFrom: fritz <
klondike@megalink.net>=0ATo: zenith701801-list@matronics.com =0ASent: Sunda
y, January 20, 2013 10:14:13 AM=0ASubject: Re: Zenith701801-List: fuel pump
nk.net>=0A=0Anot good=0A=0A=0A----- Original Message ----- From: "Doug MacD
onald" <dougsnash@yahoo.com>=0ATo: <zenith701801-list@matronics.com>=0ASent
: Sunday, January 20, 2013 10:24 AM=0ASubject: Re: Zenith701801-List: fuel
pump 701=0A=0A=0AWhat aux fuel pump?- I did fuel flow test on my 701 and
found an aux pump was unnecessary.- Standard practice would be to only us
e the aux pump when high angle of attack flight is anticipated, ie:during t
akeoff and possibly during landing.=0A=0ADoug M=0ACH-701 from scratch=0ANW
Ontario, Canada
Message 8
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| Subject: | Re: fuel pump 701 |
Yes Doug, I was referring to the "redundancy". Take-offs" being the most
critical part of flight-- in my opinion only. I also agree with Frank that
it lessens the chance of a vapor lock. Your numbers prove you to be
correct.
I was thinking 601, low wing, when I made my post.
Happy flying--- Fritz
----- Original Message -----
From: "MacDonald Doug" <dougsnash@yahoo.com>
Sent: Sunday, January 20, 2013 11:56 AM
Subject: Re: Zenith701801-List: fuel pump 701
Fritz, do you mean the absence of an auxiliary fuel pump on my plane is not
good?
Here in Canada a fuel flow test is mandatory before first flight. I'm
traveling for work right now so I don't have the documentation with me but
if I recall, at a climb angle of 17 degrees, I had two times the full power
fuel requirement of my engine available at the carbs using strictly gravity
flow. Much above 17 degrees and the fuel tanks get too close to the same
level as the engine fuel pump to provide adequate gravity flow. Fortunately,
17 degrees is more than adequate for a safe climb. Given these numbers, I am
satisfied flying without an auxiliary fuel pump.
Ultimately, however, we all must decide just how much redundancy we need in
our planes. Each to their own, I suppose.
Doug M
From: fritz <klondike@megalink.net>
Sent: Sunday, January 20, 2013 10:14:13 AM
Subject: Re: Zenith701801-List: fuel pump 701
not good
----- Original Message ----- From: "Doug MacDonald" <dougsnash@yahoo.com>
Sent: Sunday, January 20, 2013 10:24 AM
Subject: Re: Zenith701801-List: fuel pump 701
What aux fuel pump? I did fuel flow test on my 701 and found an aux pump was
unnecessary. Standard practice would be to only use the aux pump when high
angle of attack flight is anticipated, ie:during takeoff and possibly during
landing.
Doug M
CH-701 from scratch
NW Ontario, Canada
Message 9
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| Subject: | Re: fuel pump 701 |
*I also have no aux fuel pump. Have not had for over 5 yearsand 250
hours. The plane was built to Zenith standards which at the time at
least did not show a need for it. Fuel flow has never been an issue
even when hanging it on the prop at full throttle (granted that is only
done for a short period since it makes me nervous.
Dan Wilde
*
Message 10
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| Subject: | Re: fuel pump 701 |
My 701 was a long time ago when the plans called for the fuel tank behind
the instrument panel = less gravity fuel press therefore I had engine
driven pump with an electric, aux pump.
Happy Flying--- Fritz
----- Original Message -----
From: "Dan Wilde" <stolpilot.wilde@gmail.com>
Sent: Sunday, January 20, 2013 12:33 PM
Subject: Re: Zenith701801-List: fuel pump 701
> *I also have no aux fuel pump. Have not had for over 5 yearsand 250
> hours. The plane was built to Zenith standards which at the time at
> least did not show a need for it. Fuel flow has never been an issue
> even when hanging it on the prop at full throttle (granted that is only
> done for a short period since it makes me nervous.
>
> Dan Wilde
> *
>
Message 11
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| Subject: | Re: fuel pump 701 |
Ah, yes, the 601 would definitely require a boost pump.
Honestly, I purchased a Facet boost pump for my plane but decided it was more complication
for the fuel system than I was comfortable with. Once I had the flow
numbers figured out, I figured the boost pump was unnecessary.
Doug M
CH-701
NW Ontario, Canada
Sent from my iPad
On 2013-01-20, at 11:32 AM, "fritz" <klondike@megalink.net> wrote:
>
> Yes Doug, I was referring to the "redundancy". Take-offs" being the most critical
part of flight-- in my opinion only. I also agree with Frank that it lessens
the chance of a vapor lock. Your numbers prove you to be correct.
>
> I was thinking 601, low wing, when I made my post.
>
> Happy flying--- Fritz
>
>
> ----- Original Message ----- From: "MacDonald Doug" <dougsnash@yahoo.com>
> To: <zenith701801-list@matronics.com>
> Sent: Sunday, January 20, 2013 11:56 AM
> Subject: Re: Zenith701801-List: fuel pump 701
>
>
> Fritz, do you mean the absence of an auxiliary fuel pump on my plane is not good?
> Here in Canada a fuel flow test is mandatory before first flight. I'm traveling
for work right now so I don't have the documentation with me but if I recall,
at a climb angle of 17 degrees, I had two times the full power fuel requirement
of my engine available at the carbs using strictly gravity flow. Much above
17 degrees and the fuel tanks get too close to the same level as the engine
fuel pump to provide adequate gravity flow. Fortunately, 17 degrees is more than
adequate for a safe climb. Given these numbers, I am satisfied flying without
an auxiliary fuel pump.
>
> Ultimately, however, we all must decide just how much redundancy we need in our
planes. Each to their own, I suppose.
>
> Doug M
>
>
> From: fritz <klondike@megalink.net>
> To: zenith701801-list@matronics.com
> Sent: Sunday, January 20, 2013 10:14:13 AM
> Subject: Re: Zenith701801-List: fuel pump 701
>
>
> not good
>
>
> ----- Original Message ----- From: "Doug MacDonald" <dougsnash@yahoo.com>
> To: <zenith701801-list@matronics.com>
> Sent: Sunday, January 20, 2013 10:24 AM
> Subject: Re: Zenith701801-List: fuel pump 701
>
>
> What aux fuel pump? I did fuel flow test on my 701 and found an aux pump was
unnecessary. Standard practice would be to only use the aux pump when high angle
of attack flight is anticipated, ie:during takeoff and possibly during landing.
>
> Doug M
> CH-701 from scratch
> NW Ontario, Canada
>
>
>
>
Message 12
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| Subject: | Re: fuel pump 701 |
Frank, In answer to your question, I only used my electric fuel pump for
take offs and landings as a backup in critical times.
Bob Spudis
N701Zx/ 912S/ sold
In a message dated 1/20/2013 10:14:54 A.M. Eastern Standard Time,
frank.goodnight@att.net writes:
Hi ,
My question is-- Do most of you fly with the aux electric
fuel pump running all the time , or turn it off after takeoff?
So far I have left mine on all the time.
Frank Goodnight
701 912ULS about 2 hrs.
Fayetteville , AR
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