Engine de-rating

External Since: Oct 19, 2005 Posts: 434

When flying big jets (in the real world), what do pilots actually do
to "de-rate" the engines, say if the plane is flying empty?

Is there an FS9 equivalent?

Martin

External Since: Jan 20, 2006 Posts: 8

Two options or a mixof both,

1st: - you can switch from one engine rating to another passing by the fms.
You choose the appropriate rating at the right moment. As you wrote, if u
are empty u can choose a less powerful rating to save life of your engine.

2nd: - still by the fms, you can enter a higher temperature than the real
outside one which will also give a lower rating (technic called flat rated).
To do that tables are published by the constructor linked to the outside
temp, mass, altitude of the airport,...

Hope u get the answer!

See ya

Barbers