Cessna Anticipates AvGas Demise

Roy Smith wrote:
Matt Whiting wrote:

It's fully FADEC controlled, so no overheating possible.
Automobile engines have been digitally controlled for two decades and
they still can overheat.

Yes, but they don't overheat because somebody set the wrong combination of
three different knobs.

What part of "so no overheating possible" didn't you understand? That
statement is simply factually incorrect.

Matt

Thomas Borchert wrote:
Matt,

It's liquid cooled, so no discussion about shock cooling anymore.
So we prevent a problem that isn't really a problem.


No. Read carefully. We prevent DISCUSSION about a problem that isn't a
problem ;-)

Ah, but it is then replaced by discussions about loss of coolant and the
dangers therein... :-)


It's geared, so a prop strike doesn't affect the engine.
The engine still stops suddenly unless the gearbox fails or is
designed
to fail before any significant acceleration is transferred to the
engine.

There is no direct mechanical connection between the engine and the
prop, as I understand it. Same goes for the Rotax 912/914 series.

Thielert's website is in English... ;-)

The prop is driven by an electric motor? Cool! If it is driven by
gears, belts, shafts or other things mechanical, then there is a direct
connection otherwise the prop won't turn! :-)

The connection may not be capable of transferring high accelerations,
but it is still a direct connection.

Matt

Thomas Borchert wrote:
There's no TBO. They call it a TBR, where the whole engine is
replaced with a new one. I can't put my finger on the time but I think
it's around 2400 hours.


Ain't that great? Power by the hour. You know in advance what it will
cost you to run that engine 2400 hours. No surprise midtime overhauls.
If it doesn't make TBR, Thielert will prorate it on the new engine.


That is great as long as the cost per hour is competitive.

Matt

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?

Larry,

Or
are you saying Thielert equipped aircraft carry an additional battery
dedicated to the FADEC system that is incapable of failure?


They carry an extra. "INcapable of failure"? Show me one thing on an
airplane (or anything) that is.

So, in the literal sense you seem to have wanted your statement to be
read: Yes, without electricity, the engine doesn't run. So?

--
Thomas Borchert (EDDH)

Matt,

The connection may not be capable of transferring high accelerations,
but it is still a direct connection.


Well, let's get specific rather than semantic: The coupling is
hydraulic, as I understand it.

--
Thomas Borchert (EDDH)

("Larry Dighera" wrote)
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?


http://www.youtube.com/watch?v=bEaQO_2Httg
Cessna's New Turbo Diesel 172 Skyhawk (4:25 mark)

"We also have add a FADEC stand-by battery, which allows the airplane to run
for 2 hours. In the event of a total electric failure there's a battery
dedicated just to the engine."


Montblack

Roy Smith wrote:

Yes, but they don't overheat because somebody set the wrong combination of
three different knobs.

Four knobs. You forgot the stick.

Matt Whiting wrote:

It's fully FADEC controlled, so no overheating possible.
Automobile engines have been digitally controlled for two decades and
they still can overheat.

Yes, but they don't overheat because somebody set the wrong
combination of three different knobs.

What part of "so no overheating possible" didn't you understand? That
statement is simply factually incorrect.

What part of "not possible" didn't *you* understand? Frankly I don't
know abot the Thielert, but with the FADEC controlled engine *I* fly
regularly (a non-certified engine which isn't sold in the USA), I've not
been able to overheat it, and I *did* try. (Actually I've just tried to
reach the allowed limits, of course.) So yes, it's a reachable goal.

Stefan wrote in news:b7358$47091384$d9a2714f$8838
@news.hispeed.ch:

Matt Whiting wrote:

It's fully FADEC controlled, so no overheating possible.
Automobile engines have been digitally controlled for two decades and
they still can overheat.

Yes, but they don't overheat because somebody set the wrong
combination of three different knobs.

What part of "so no overheating possible" didn't you understand? That
statement is simply factually incorrect.

What part of "not possible" didn't *you* understand? Frankly I don't
know abot the Thielert, but with the FADEC controlled engine *I* fly
regularly (a non-certified engine which isn't sold in the USA), I've not
been able to overheat it, and I *did* try. (Actually I've just tried to
reach the allowed limits, of course.) So yes, it's a reachable goal.


You try letting the coolant out?


Bertie