Not to differ Frans, but to comment.
The differential is absolutely necessary, but I do the math to check MP
vs Fuel Pressure, it keeps me alert. I don't fly above 10,000 so it
rarely matters in my type flying. I measure the pressure off the
regulator to watch my fuel filter health. A drop in fuel pressure
indicates a fuel filter in need of servicing. Learned that the hard way
in test flying.
It would be the department of redundant redundancy to measure both
differential and MP and fuel manifold pressures, but wouldn't it be
neat.
Just my thoughts.
Bud Yerly
Custom Flight
----- Original Message -----
From: Frans Veldman<mailto:frans@paardnatuurlijk.nl>
To: europa-list@matronics.com<mailto:europa-list@matronics.com>
Sent: Thursday, June 25, 2009 4:05 PM
Subject: Re: Europa-List: Re: fuel pressure
<frans@paardnatuurlijk.nl<mailto:frans@paardnatuurlijk.nl>>
europa@pstewart.f2s.com<mailto:europa@pstewart.f2s.com> wrote:
> Franz - I'll get onto Europa re the banjo - I already have the
sensor feeding
> into a Blue Mountain EFIS
If you have a 914, just make sure you use the difference over the
airbox
pressure, not the absolute fuel pressure. The absolute fuel pressure
is
meaningless if the airbox pressure is the same (netto is zero, so no
fuel will flow to the carbs, despite the absolute fuel pressure).
--
Frans Veldman
http://www.matronics.com/Navigator?Europa-List<http://www.matronics.com/N
avigator?Europa-List>
http://www.matronics.com/contribution<http://www.matronics.com/contributi
on>
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