Reply-To: <glcasey@gte.net>
Reply-To: lancair.list@olsusa.com
From: "Gary Casey" <glcasey@gte.net>
To: <lancair.list@olsusa.com>
Subject: FADEC
Date: Sun, 6 Jan 2002 07:48:27 -0800
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>>
>>Any input I can get on going with the IO550 FADEC over the IO550N would be
appreciated. I could not
get too much from the Continental site. The little I know sounds great in
theory, is it that great?
<<

I am sort of a competitor (not enough that they or anyone else would notice)
and not too intimate with the system, so you can take my comments for what
they're worth..

The system does work, of course, since it is certified.  The redundancy is
probably adequate - at least the FAA thinks so.  I am skeptical of the
capability of the injectors in terms of durability and accuracy, but maybe
they did in a couple of years what we in the auto business took 10 years to
do.  Remember, durability, or even reliability, is not an issue that the FAA
spends much time with.  They worry more about safety (redundancy).  I think
the system is just expensive.  Compared to the standard Continental system,
which in my opinion is deficient to start with, their FADEC is a giant step
forward.  The more appropriate comparison in my opinion is to the Precision
Airmotive RSA system, which is probably as good as a purely mechanical
system can get at the moment.  The FADEC will probably not outperform that
except at high altitude low load.  Operationally, the FADEC idea is a good
one - single power lever, key start at any temperature, etc.

Gary Casey
ES project


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