Super 80 Professional – AOM
OPERATING TECHNIQUES
Section 4 Page 2
Super 80 Professional – Aircraft Operating Manual
Coolsky, 2018
PREFACE
A procedure may be described as an
orderly plan for accomplishing a specific
task, and usually involves several steps.
Technique may be described as the expert
manner of performing these steps.
Proper operating technique results in a
higher degree of safety, better passenger
comfort, less wear and tear on equipment,
and increased fuel economy.
At all times, the pilot should perform his/hers
duties with awareness, intelligence and in
anticipation of what will happen next, to
ensure the safety and success of the flight.
TAXI
Taxi Thrust
To begin the taxi roll and break away from
the ramp, release the brakes and smoothly
increase thrust. On the ramp area, limit thrust
to 1.2 EPR to minimize jet blast and avoid
damaging equipment on the ramp area.
When adding power to break away, set the
power and wait for the engines and aircraft
to respond. Do not continually increase
thrust until the aircraft starts moving. Roll
straight forward at first before turning to
avoid the need for excessive thrust.
Taxiing
The MD-81 has a very responsive nose wheel
steering and light nose wheel footprint.
Special caution is therefore required when
taxiing on wet or slippery surfaces. Turning
too rapidly at a high taxi speed may cause
the nose wheel to lose traction and skid.
Heading control will not be regained until
the speed has been reduced and the nose
wheel deflection is reduced.
The limit deflection angle for the nose wheel
is 82 degrees left and right.
The main gear is approximately 70ft behind
the pilots. When entering turns, the pilot
should therefore overshoot the centerline to
compensate for the aft position of the main
gear.
Avoid riding the brakes. Intermittent, positive
application of the brakes will ensure cool
brakes and less wear.
Normal Idle Thrust
With idle thrust and a loaded aircraft,
greater use of the brakes may be required.
Note that reverse thrust to assist slowing the
aircraft during normal taxiing is not
authorized. However, during conditions of
reduced brake effect, reverse thrust may be
used in an emergency to assist slowing the
aircraft. Do not use asymmetrical thrust for
directional control.
Anti-Skid
The anti-skid system should not be used while
taxiing on the ramp area. Turn the anti-skid
system on after leaving the ramp area, and
off before entering the ramp area.