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requirements are met. Since more than idle thrust is required, the flight crew must
be aware of buildings or other objects in the area being swept by jet blast during
the turn.
Note: Monitor the nose gear track closely, as it will leave the pavement in the turn
before the main gear.
Approach the edge of the taxi surface at a shallow angle until the outboard side of
the main gear wheels are near the edge. The lower outboard corner of the pilot’s
number 1 window is a good visual reference for the outboard side of the main gear
wheels on the same side. The lower inboard corner of the pilot’s number 1 window
is also a good reference for the opposite side main gear wheels.
Note: Painted runway markings are slippery when wet and may cause skidding
of the nose gear during the turn.
October 31, 2004
767 Flight Crew Training Manual
Ground Operations
Copyright © The Boeing Company. See title page for details.
FCT 767 (TM) 2.9
Turning radius can be reduced by following a few specific taxi techniques. Taxi
the airplane so that the main gear tires are close to the runway edge.This provides
more runway surface to make the turn. Stop the airplane completely with the thrust
at idle. Hold the tiller to the maximum steering angle, release the brakes, then add
thrust on the outboard engine. Only use the engine on the outboard side of the turn
and maintain 5 to 10 knots during the turn to minimize turn radius. Light
intermittent braking on the inside main gear helps decrease turn radius. Stopping
the airplane in a turn is not recommended unless required to reduce the turn radius.
As the airplane passes through 90° of turn, steer to place the main gear
approximately on the runway centerline, then gradually reduce the tiller input as
required to align the airplane with the new direction of taxi. These actions result
in a low speed turn and less runway being used. Wind, slope, runway or taxiway
surface conditions, and center of gravity may also affect the turning radius.
The following diagrams show suggested airplane ground tracks for minimum
radius 180° turns with various runway turnaround configurations. These ground
tracks provide the best maneuver capability while providing the maximum
runway length available for takeoff at the completion of the turn.
October 31, 2004
767 Flight Crew Training Manual
Ground Operations
Copyright © The Boeing Company. See title page for details.
2.10 FCT 767 (TM)
Techniques when using a Circular Turnaround
When abeam center of the
turnaround, stop the
airplane, apply full tiller,
then add thrust to maintain 5
to 10 knots during the turn.
When turn completion
is assured and main
gear are on the runway
centerline, steer toward
runway centerline.
R
Align airplane
near runway edge
After entering the
turnaround, turn to align
airplane near opposite
side of circular
turnaround
Steer to maintain flight
deck over edge of taxi
surface. Maintain 5 to 10
knots.
Use momentary
application of inside
brakes, as needed
Note: Follow turnaround
steering guidance
cues if available
October 31, 2004
767 Flight Crew Training Manual
Ground Operations
Copyright © The Boeing Company. See title page for details.
FCT 767 (TM) 2.11
Techniques when using a Hammerhead Turnaround
When turn completion
is assured and main
gear are on the runway
centerline, steer toward
runway centerline.
When abeam center of the
turnaround, stop the
airplane, apply full tiller,
then add thrust to maintain 5
to 10 knots during the turn.
Align airplane
near runway edge
Use momentary
application of inside
brakes, as needed
Note: Follow turnaround
steering guidance
cues if available
October 31, 2004
767 Flight Crew Training Manual
Ground Operations
Copyright © The Boeing Company. See title page for details.
2.12 FCT 767 (TM)
Techniques when using a Hammerhead Turnaround
Taxi - Adverse Weather
Taxi under adverse weather conditions requires more awareness of surface
conditions.
When abeam center of the
turnaround, stop the
airplane, apply full tiller,
then add thrust to maintain 5
to 10 knots during the turn.
When turn completion
is assured and main
gear are on the runway
centerline, steer toward
runway centerline.
After entering the
turnaround, turn to
align airplane near
opposite side of
circular turnaround
Align airplane
near runway edge
　
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