Super 80 Professional – AOM
POWER PLANT
Section 22 Page 3
Super 80 Professional – Aircraft Operating Manual
Coolsky, 2018
Thrust Reversers
Two thrust reverser doors (each engine)
provide the means for directing fan air and
exhaust gases. The thrust reverser direct flow
for reverse engine thrust, to achieve aircraft
ground deceleration.
When the thrust reverser unlatches, an
amber ENG REVERSE UNLOCK light on the
center instrument panel comes on. When
the reverser is fully extended, a blue ENG
REVERSE THRUST light on the center
instrument panel comes on.
Engine Synchronizer System
The engine synchronizer system
automatically matches the N
1
or N
2
RPM
speed of both engines provided the N
1
’s or
N
2
’s (as selected) are within 1% of each
other when the synchronizer is turned on.
An ENG SYNC ON annunciator light on the
overhead panel will come on when the
landing gear handle is in the down position
and the ENG SYNC selector is in the N
1
or N
2
position.
Note: The ENG SYNC switch must be OFF
during takeoff, landing, thrust reverse
operation, or when the airplane is below
1500ft AGL.
Automatic Reserve Thrust (ART).
The ART system provides for the automatic
detection of an engine failure during takeoff
and a subsequent thrust increase on the
operating engine.
The ART system consists of a two position
switch and three annunciator lights. A green
ready light comes on when the ART self test
has been completed. The amber ART light
comes on when the system has detected an
engine failure (one N
1
30% less than the
other N
1
).
When ART has been activated:
•
Fuel control is adjusted to a thrust
schedule resulting in an 850 pound
increase in thrust.
•
Operating engine instruments display
an increase in N
1
, N
2
, EPR and fuel
flow.
•
EPR LIM readout will display a
computed reserve thrust EPR LIM.
•
EPR reference bug will be set
according to computed reserve
thrust EPR LIM.
An amber ART INOP light on the overhead
annunciator panel indicates a failure in the
ART system, or the ART switch is in the OFF
position.
System operation is fully automatic with the
ART switch in the AUTO position. Self test will
be initiated with the airplane on the ground,
both engines running and slats extended.
With the green READY light on, the ART
system is armed when power on both
engines is advanced beyond 64% N
1
. After
takeoff, the ART system is disarmed when
slats are retracted. However, the ART system
will also disarm if both engines are retarded
to below 58% N
1
. When disarmed by slat
retraction, the system can only be rearmed
with the airplane on the ground. When
disarmed by power reduction, the READY
light will come on, and the system will rearm
when power on both engines is advanced
beyond 64% N
1
.