Ian wrote:
"Eunometic" wrote in message
oups.com...

Benjamin Gawert wrote:

Eunometic schrieb:


Eunometic schrieb:
It does apply for the PA200 Tornado. The APU is not operable

in-flight,

if you loose both engines and the one-shot battery is down you have to
get out of that thing...


I didn't think Tornado was fully FBW?

The PA200 Tornado is fully FBW with a mechanical linkage backup

system...

Benjamin

Then why does it need a thermal backup battery to remain airborn?


The One Shot Battery is there to provide electrical power to a Fuel pump (or
in combination with a Hyd pump). The engines also need electrical power to
keep their systems running - without electrics, the engines will "run
away" - Very bad thing if you're not near a nice big bit of tarmac......


Or, more importantly, a runway. They tend to be made of concrete not
asphalt.

Dan, U.S. Air Force, retired