Operation Manual Part 2

Aerosoft – Digital Aviation
CRJ-70 & CRJ-900
AOM PART 2
Systems Description
VOL
5
5-1-117
26-Jul-2017
FULL AUTHORITY DIGITAL ELECTRONIC CONTROL (FADEC)
The FADEC assists the pilots by commanding thrust depending on thrust lever setting and several
environmental parameters.
Each engine is equipped with dual channel FADEC computers and they are powered by the aircraft’s electrical
system. The available detents were already introduced in the thrust control section.
Selected detent
Displayed EICAS
mode
FADEC mode
Explanation
Fuel shutoff
Solid amber line
shutoff
Engine is off / full shutoff
Idle
-
Idle
Optimized idle thrust (N2) is computed
depending on flight phase, environmental
parameters
Cruise Range
CRZ
Cruise
N1 is commanded by the thrust setting
Climb
CLB
Climb
Climb thrust is computed and commanded
Take-off
TO
Take-off
Take-off thrust is computed and
commanded
TOGA
GA
Go-around
Go-around thrust is computed and
commanded
Climb
MCT
Maximum
Continuous Thrust
Maximum Continuous Thrust – triggered by
OEI activated or high power schedule was
selected
Take-off
FLX
Flex Power
Flex Power is a reduced take-off power
setting to minimize wear of the engine and
fuel consumption. See following description