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A. High Speed Flight
An appropriate airspeed limitation is established for the case where there is a need for crews
to experience the airplane’s high speed characteristics above VMO/MMO during training, or for
VMO/MMO to be exceeded to permit correct operation of the high speed warning to be tested,
up to the maximum upper limit of tolerance of the system. In order to satisfy this requirement,
an airspeed limitation of VMO + 10 KIAS or MMO + 0.03 has been defined for the purpose of
airworthiness flight tests or crew training operations, provided the following conditions are
observed:
• Passengers are not carried;
• Wings are level, and no “g” is applied throughout the maneuver; and
• There is no significant turbulence.
ENTRY AND RECOVERY PROCEDURES
The maneuver should be commenced in level flight, by setting the thrust levers to achieve
maximum continuous thrust (MCT), and then lowering the nose of the airplane gently. To
recover from the maneuver, set the thrust levers to IDLE, extend the flight spoilers, and carry
out a gentle pull-up. If an airspeed greater than VMO + 10 KIAS or MMO + 0.03 is inadvertently
achieved, or any airframe or aileron buffet is encountered, recovery action should be taken
immediately.
SUPPLEMENTARY PROCEDURES
Airworthiness Flight Test/Crew Training
Vol. 1 06−20−1
REV 66, Feb 01/07
CL−604 Operating Manual
PSP 604−6
5. NORMAL PROCEDURES (CONT'D)
B. Intentional Stalls
Intentional stalls may be carried out, when authorized, for the purpose of airworthiness flight
tests or crew training operations, subject to the following conditions:
• Altitude is between 13,000 feet and 15,000 feet;
• Autopilot is disengaged;
• Stall protection system is fully operative;
• Airplane is free from ice;
• Airplane maneuver area is clear of cloud and turbulence; and
• Yaw damper is on.
STALL CHARACTERISTICS
There is no natural stall warning or aerodynamic buffet prior to the stall, in the altitude range
of between 13,000 feet and 15,000 feet. As a high angle of attack approaches, continuous
ignition is activated. Stall warning is provided by a stick shaker, which is set to operate at
varying percentages of indicated airspeed above the stalling speed. Stick shaker speeds are
presented in tabular form in Figures 06–20–1 to 06–20–4.
The stall is defined by the operation of the stick pusher, and the associated nose down
attitude change. Alternate stall identification is provided by the STALL switch/lights on the
glareshield panel flashing red, and the warbler coming on. Stick pusher speeds are presented
in tabular form in Figures 06–20–5 to 06–20–8.
ENTRY AND RECOVERY PROCEDURES
Start the maneuver by establishing the appropriate configuration, with the thrust levers set to
IDLE. Trim the airplane at an airspeed of approximately 1.4 VS in that configuration, after
setting the required power. Reduce the airspeed by pitching the nose up (with the wings kept
level) at a deceleration rate of not more than one knot per second. Rapid or violent
movements of any flight controls during the approach to the stall should be avoided,
particularly at airspeeds below the operation of the stick shaker. Any tendency to yaw during
the approach to the stall should be corrected by normal use of the rudder.
Immediately after the stall is recognized, prompt and positive recovery action should be
taken, by forward movement of the control column and simultaneous addition of power. This
nose down attitude should be maintained, and power added, until airspeed is increased
sufficiently to accomplish a smooth pull out. At no time should speed be allowed to reduce to
more than 2 knots below the stick pusher speed.
STICK SHAKER AND STICK PUSHER SPEEDS
The indicated stick shaker and stick pusher speeds, for varying airplane weights and pressure
altitudes, are presented in the following tables:
Figure 06−20−1 provides the stick shaker speeds for flaps 0° and gear up;
Figure 06−20−2 provides the stick shaker speeds for flaps 20° and gear up;
Figure 06−20−3 provides the stick shaker speeds for flaps 30° and gear up;
Figure 06−20−4 provides the stick shaker speeds for flaps 45° and gear down;
Figure 06−20−5 provides the stick pusher speeds for flaps 0° and gear up;
Figure 06−20−6 provides the stick pusher speeds for flaps 20° and gear up;
SUPPLEMENTARY PROCEDURES
Airworthiness Flight Test/Crew Training
Vol. 1 06−20−2
REV 66, Feb 01/07
CL−604 Operating Manual
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庞巴迪挑战者604操作手册 Operating Manual 2(87)
