Today's Message Index:
----------------------
1. 11:11 AM - Re: Latest Rough River Count (Fred Klein)
2. 11:24 AM - Re: Re: Pierburg Output Fuel Pressure (Frans Veldman)
3. 11:33 AM - Re: Latest Rough River Count (JEFF ROBERTS)
4. 12:35 PM - Re: Re: Pierburg Output Fuel Pressure (rparigor@suffolk.lib.ny.us)
5. 01:34 PM - Fuel sight gauge (mike gamble)
6. 01:39 PM - test (mike gamble)
7. 02:11 PM - Re: Fuel sight gauge (Tim Ward)
8. 05:46 PM - Arlington (WA) Fly-In (Fred Klein)
Message 1
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| Subject: | Re: Latest Rough River Count |
On Jun 22, 2010, at 7:01 AM, JEFF ROBERTS wrote:
> Can anyone tell me if DR. Alex Bowman can be reached. It would be
> really cool to have his Honda powered Europa there!! I know the west
> coast is a long was away but I believe we have some more out there.
Jeff,
Alex sends his regrets, much as he'd like to attend...and he assures
me that his Europa is up to the task...but he's had some recent health
issues which more than likely will preclude his attendance at RR...
Fred
Message 2
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| Subject: | Re: Pierburg Output Fuel Pressure |
On 07/02/2010 03:57 PM, rparigoris wrote:
> If you were to have such a circuit, you would want to have it turn on
> second pump when it falls below ~ 2 PSI differential pressure (fuel
> pressure going to carb less the airbox pressure).
I agree you should have a differential fuel pressure switch. The Rotax
maintains a specific fuel pressure OVER the airbox pressure (which
varies with power setting and altitude).
> not be the thing to do if you have parallel pumps because you can
> blow over the ~ 5 PSI differential.
I have the serial pump layout, but with a full tank and both fuel pumps
on, the differential pressure raises to 6 psi while the engine is
running on low power. I was concerned that this higher fuel pressure
would choke the engine during the approach, when both fuel pumps are on
and the power setting is low, but I have not experienced any problems
with it.
Yet I would like to know whether this is normal. During flight, with one
pump on, the differential pressure is always around 4.5, regardless of
power setting. Interestingly, the fuel pump connected to the Andair
gascolator provides a lower pressure than the fuel pump connected to the
disposable fuel filter.
Frans
Message 3
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| Subject: | Re: Latest Rough River Count |
Fred,
Please wish him our best and I will say a prayer for him to get back
in the air and be feeling better!
If there is anyone else out there needing info on RR or needing me to
up date data on the list please e-mail me direct and will answer any
questions needed and get it done.
Regards,
Jeff R. N128LJ Gold Rush
On Jul 6, 2010, at 12:14 PM, Fred Klein wrote:
>
>
> On Jun 22, 2010, at 7:01 AM, JEFF ROBERTS wrote:
>
>> Can anyone tell me if DR. Alex Bowman can be reached. It would be
>> really cool to have his Honda powered Europa there!! I know the
>> west coast is a long was away but I believe we have some more out
>> there.
>
> Jeff,
>
> Alex sends his regrets, much as he'd like to attend...and he assures
> me that his Europa is up to the task...but he's had some recent
> health issues which more than likely will preclude his attendance at
> RR...
>
> Fred
>
>
Message 4
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| Subject: | Re: Pierburg Output Fuel Pressure |
Hi Frans
Just a few ideas:
Differential pressure gauge may
not be speaking absolute truth
The fuel pressure regulator is
adjustable, you could lower a pound
You may have more of a
restriction on the return line than is desirable, make sure fittings you
are using are oflarge bore varient. supplied with my kit were both
large and smaller bore (more restricting). also look for kinks or pinches.
Rotax tells you max. restriction they want, worth measuring. Measure and
or fix restriction before you adjust regulator.
Fuel pressure
needs to be higher than airbox pressure or it won't flow into carb bowl.
Too high and it could overcome needle valve and leak. That said there are
plenty of 914s flying with parallel fuel systems that blow way higher than
5 PSI and pilots sday seems fine. 6 PSI is not very high, but if it were i
I would get it down a little if i could. Perhaps you can check
gauge/sender calibration?
Ron P.
> -->
Europa-List message posted by: Frans Veldman
<frans@privatepilots.nl>
>
> On 07/02/2010 03:57
PM, rparigoris wrote:
>
>> If you were to have such a
circuit, you would want to have it turn on
>> second pump when
it falls below ~ 2 PSI differential pressure (fuel
>> pressure
going to carb less the airbox pressure).
>
> I agree you
should have a differential fuel pressure switch. The Rotax
>
maintains a specific fuel pressure OVER the airbox pressure (which
> varies with power setting and altitude).
>
>>
not be the thing to do if you have parallel pumps because you can
>> blow over the ~ 5 PSI differential.
>
> I
have the serial pump layout, but with a full tank and both fuel pumps
> on, the differential pressure raises to 6 psi while the engine is
> running on low power. I was concerned that this higher fuel
pressure
> would choke the engine during the approach, when both
fuel pumps are on
> and the power setting is low, but I have not
experienced any problems
> with it.
> Yet I would like
to know whether this is normal. During flight, with one
> pump
on, the differential pressure is always around 4.5, regardless of
> power setting. Interestingly, the fuel pump connected to the Andair
> gascolator provides a lower pressure than the fuel pump
connected to the
> disposable fuel filter.
>
>
Frans
>
>
>
>
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>
>
>
>
Message 5
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| Subject: | Fuel sight gauge |
I have the Europa electric fuel gauge and retain the sight gauge fitted on
the stb side of the baggage bay. I am thinking of marking the fuel
quantities alongside the latter with the aircraft tail down, this being for
the gross fuel check before flight. Does this seem sensible?
Mike
G-CFMP
Mono XS
Message 6
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test
Message 7
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| Subject: | Re: Fuel sight gauge |
Mike,
Exactly what I have done. Yes, makes sense. Hard to read accurately
during flight due to its position however you still have the electric
fuel gauge and a mental note.
Cheers,
Tim
Tim Ward
12 Waiwetu Street'
Fendalton,
Christchurch.
NEW ZEALAND
Ph. 64 3 3515166
Mob 021 0640221
Email ward.t@xtra.co.nz
----- Original Message -----
From: mike gamble
To: europa-list@matronics.com
Sent: Wednesday, July 07, 2010 8:33 AM
Subject: Europa-List: Fuel sight gauge
I have the Europa electric fuel gauge and retain the sight gauge
fitted on the stb side of the baggage bay. I am thinking of marking the
fuel quantities alongside the latter with the aircraft tail down, this
being for the gross fuel check before flight. Does this seem sensible?
Mike
G-CFMP
Mono XS
Message 8
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| Subject: | Arlington (WA) Fly-In |
Can any Europas be expected to show up at the Arlington WA Fly-In
(July 7-11)??
Fred
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