Cessna Anticipates AvGas Demise

On Sat, 06 Oct 2007 23:29:31 GMT, Matt Whiting
wrote in :


It's fully FADEC controlled, so always best prop pitch to the chosen
power setting.

Yes, that is a nice advantage.

What powers the FADEC in the event of an electrical system failure?

Larry Dighera schrieb:

It's fully FADEC controlled, so always best prop pitch to the chosen
power setting.
Yes, that is a nice advantage.

What powers the FADEC in the event of an electrical system failure?

No idea about the Thielert, but the FADEC controlled engine I often fly
just falls back to some default settings. I mean, it had been if it ever
had failed.

Stefan wrote in news:9b58a$470825c7$d9a271ba
:

Larry Dighera schrieb:

It's fully FADEC controlled, so always best prop pitch to the chosen
power setting.
Yes, that is a nice advantage.

What powers the FADEC in the event of an electrical system failure?

No idea about the Thielert, but the FADEC controlled engine I often fly
just falls back to some default settings. I mean, it had been if it ever
had failed.


This is what happens


http://www.megginson.com/blogs/lahso...ngine-failure/



Bertie

Bertie the Bunyip wrote:

This is what happens

BS. This is what happens when you don't follow the POH.

Stefan wrote in news:46484$47082ac5$d9a271ba
:

Bertie the Bunyip wrote:

This is what happens

BS. This is what happens when you don't follow the POH.


Not BS, and you snipped the question.

Waht happens when battery power is taken from the fadec?


This is what happens.


Bertie

Larry,

What powers the FADEC in the event of an electrical system failure?


A battery. Yes, in the case of the DA-42, this was implemented lousily,
as someone found out the hard way when he didn't follow the POH. The
system is being changed to prevent fools from...
Other installations are different.

In case you worry about this "single point of failure", your Lyc or
Continental has tons of them, too.

--
Thomas Borchert (EDDH)

Thomas Borchert wrote in
:

Larry,

What powers the FADEC in the event of an electrical system failure?


A battery. Yes, in the case of the DA-42, this was implemented lousily,
as someone found out the hard way when he didn't follow the POH. The
system is being changed to prevent fools from...
Other installations are different.

In case you worry about this "single point of failure", your Lyc or
Continental has tons of them, too.


But not invovling electricity.

Any airplane I've flown that has Fadec has some sort of manual reversion.


Bertie

"Bertie the Bunyip" wrote

Any airplane I've flown that has Fadec has some sort of manual reversion.

Yes, but when you take off without any charge in your back-up battery, it is
the idiot at the stick bypassing the reversion that is the problem.
--
Jim in NC

"Morgans" wrote in
:


"Bertie the Bunyip" wrote

Any airplane I've flown that has Fadec has some sort of manual
reversion.

Yes, but when you take off without any charge in your back-up battery,
it is the idiot at the stick bypassing the reversion that is the
problem.


It's irrelevant when you're talking design flaw. On that occasion it was
the idiot, but thre's a thousand ways the fadec can be robbed of sparks.
Every airplane I've flown with a fadec, ECU, EEC or whatever, has had soome
sort of limp home capability. This one does not. No electrics, no power.
I've had two Fadec malfunctions in the last four months whihc required a
disconnect and reversion to manual FCU. No big deal. 90 seconds n the
checklist and we were back to bitching about how hard our lives were

Bertie

On Sun, 07 Oct 2007 09:41:05 +0200, Thomas Borchert
wrote in
:

Larry,

What powers the FADEC in the event of an electrical system failure?


A battery.

Are you saying the battery isn't part of the electrical system? Or
are you saying Thielert equipped aircraft carry an additional battery
dedicated to the FADEC system that is incapable of failure?