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flying hours and have proven to be safe and functional.
OPERATING MANUAL
GROUND / FLIGHT CHARACTERISTICS AND
PROCEDURES
06-00-00
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May 31/00
Revision 0
OPERATING MANUAL
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GROUND / FLIGHT CHARACTERISTICS AND
PROCEDURES
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GROUND CHARACTERISTICS AND PROCEDURES
06-01-10: Taxi Procedures
1. General:
Taxi procedures for the GIV aircraft are basically the same as previous models of
Gulfstream aircraft. When compared to earlier Gulfstream models, however, some
special care is required because of the GIV’s additional engine thrust, larger wing
span and the additional distance between the nose landing gear and main landing
gear. Particular attention to correct taxi speed, due to the higher gross weight, is
also required.
2. Use of Thrust:
To break away at the ramp, release the brakes and smoothly advance the power
levers and let the aircraft roll forward. Because of the residual thrust created at
idle power, very little power lever movement is needed to move the aircraft. When
adding power, wait for the aircraft to respond before adding additional power. As
the engines spool up, the aircraft will begin moving smoothly at a comfortable
speed. If obstructions are behind the aircraft, use the minimum thrust necessary
for taxi to avoid damage caused by engine exhaust. Both engines should be used
together to reduce the amount of thrust required from any one engine.
3. Braking:
Do not ride the brakes. Overheated brakes reduce braking efficiency and could
seriously affect the stopping distance in a rejected takeoff. Use of idle reverse is
permissible on clean taxiways to reduce brake usage.
06-01-20: Typical Taxi Turning Path
1. Maneuvering:
Beginning to move while at the same time attempting to turn requires a
considerably higher thrust level. When a turn is required immediately following
brake release, advance power to obtain sufficient speed to carry the aircraft
throughout the turn. If braking is required, use brakes symmetrically.
Whenever space is available, turns should be made with less than full nosewheel
steering travel. For small changes of direction, rudder pedal steering alone can be
used to provide up to seven degrees (7°) of travel. The combined use of rudder
pedal steering and nosewheel steering is additive. Force should be applied to the
nosewheel steering with a constant and smooth application and returned to center
gently, while keeping firm control of the nosewheel steering. Any quick movement
of the nosewheel steering will result in jerky movements of the aircraft, which may
be uncomfortable for the passengers.
When initiating a turn, do not begin the turn until the extended centerline of the
intersecting taxiway is under the pilot’s seat position to compensate for the nose
gear being aft of the pilots’ seats. Taxi speed should be monitored closely in tight
turns. The best reference is the ground speed indication on the Pilot’s Primary
Flight Display (PFD). Excessive speed in tight turns or on wet or slippery surfaces
may cause the nose wheel to skid or scrub the side walls.
2. Visual References:
When turning into narrow taxiways from a wider surface, it is better to oversteer
than understeer, i.e., go past the extended centerline of the narrow taxiway until it
intersects the main door before initiating the turn.
OPERATING MANUAL
GROUND / FLIGHT CHARACTERISTICS AND
PROCEDURES
06-01-00
Page 1
May 31/00
Revision 0
06-01-30: Minimum Aircraft Turn Radii
Figure 1 depicts the minimum turn radii of the GIV.
Turning Dimensions and Distances
Figure 1
OPERATING MANUAL
GROUND / FLIGHT CHARACTERISTICS AND
PROCEDURES
06-01-00
Page 2
May 31/00
Revision 0
TAKEOFF CHARACTERISTICS AND PROCEDURES
06-02-10: Normal Takeoff
1. Normal Takeoff - With Autothrottles:
A. Procedure:
(See Figure 1.)
(1) Engage the autothrottle for takeoff as follows:
(a) On the side of either power lever knob, depress the Takeoff /
Go Around (TO/GA) button.
(b) On the Flight Guidance Panel, depress the Autothrottle Arm
(A/T ARM) button.
(c) Ensure ISOLATION valve is closed.
(d) Depress and hold the brakes. While holding the brakes,
advance the power levers until both Engine Pressure Ratio
(EPR) indications are above 1.17.
(e) On either power lever, depress the Autothrottle Engage (A/T
ENG/DISENG) switch, and release the brakes. Power will
automatically advance to Takeoff EPR.
(2) Maintain directional control with rudder pedal steering while keeping
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湾流4操作手册 Gulfstream IV Operating Manual 3(127)
