Flight altitude: 10,000 feet above ground level or higher;
E.双发N1指示相同；
N1 equal for both engines;
F.两主油箱油量相同；
Wing fuel loads equal;
G.襟翼收上；
Flaps up;
H.所有人在座位上并系好安全带；
All persons seated and fasten seatbelt.
二 测试程序
Flight test procedure
A.作动驾驶盘至中立位，将 P5板上的扰流板电门A和B置于 OFF位；
Center the control wheel and position spoiler switches A and B on P5 panel to OFF;
B.将P5板上的FLT CONTROL电门B置ON位，FLT CONTROL电门A置OFF位
（注意：在其转换过程中，飞机可能上下俯仰），谨慎操作升降舵、副翼、感觉操纵力是否改变，并记录：
Position flight control switch B to ON and flight control switch A to OFF in that order (NOTE: Airplane may pitch up or pitch down during the transition), Carefully move elevators, ailerons and rudder, write down the control forces and responses.
a.各感觉操纵力未改变（此表明系统工作正常）；
The control forces and responses do not change (This means system is OK)
b.升降舵操纵力改变;
The elevator control force changed.
c.副翼操纵力改变;
The aileron control force changed.
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航空公司 B737-700飞行对称性试飞项目单
d.方向舵操纵力改变;
The rudder control force changed.
C.将P5板上的FLT CONTROL电门A置ON位，FLT CONTROL电门B置OFF位
（注意：在其转换过程中，飞机可能上下俯仰），谨慎操作升降舵、副翼、感觉操纵力是否改变，并记录：
Position flight control switch A to ON and flight control switch B to OFF in that order (NOTE: Airplane may pitch up or pitch down during the transition), Carefully move elevators, ailerons and rudder, write down the control forces and responses.
a.各感觉操纵力未改变（此表明系统工作正常）；
The control forces and responses do not change (This means system is OK)
b.升降舵操纵力改变;
The elevator control force changed.
c.副翼操纵力改变;
The aileron control force changed.
d.方向舵操纵力改变;
The rudder control force changed.
D.将P5板上的FLT CONTROL电门B置STBY RUD位，FLT CONTROL电门A置OFF位（注意：在其转换过程中，飞机可能上下俯仰）；
Position flight control switch B to STBY RUD and flight control switch A to OFF in
that order (NOTE: Airplane may pitch up or pitch down during the transition).
a.确保飞机未发生大的横滚或大的俯仰；
Make sure no large rolling moment and/or no large pitch change.
b.使用方向舵配平来保持飞机机翼水平;
Trim the airplane using the rudder to keep heading with the wing level.
(1). 此时方向舵配平不应超过2个单位，如超过，记录其实际值： ；
Make sure that rudder trim does not change more than 2 unit, If the
value exceeded, make note.
c.如果飞机有滚转趋势，请记录：
Monitor any roll tendency, make note.
(1). 左滚转 (2).右滚转
Left roll Right roll
d.将驾驶盘左转 30度，再将驾驶盘右转 30度，感觉操纵力差别不大，如差值大，记录：
Turn control wheel 30 degrees right and 30 degrees left, make sure wheel
forces are symmetrical. If asymmetrical much, make note:
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航空公司 B737-700飞行对称性试飞项目单
(1). 左转操纵力大； (2). 右转操纵力大； Left wheel force big; Right wheel force big
E.将P5板上的FLT CONTROL电门A置STBY RUD位，FLT CONTROL电门B 置 OFF位（注意：在其转换过程中，飞机可能上下俯仰）；
Position flight control switch A to STBY RUD and flight control switch B to OFF in that order (NOTE: Airplane may pitch up or pitch down during the transition).
a.确保飞机未发生大的横滚或大的俯仰；
Make sure no large rolling moment and/or no large pitch change.
b.使用方向舵配平来保持飞机机翼水平;
Trim the airplane using the rudder to keep heading with the wing level.
(1). 此时方向舵配平不应超过2个单位，如超过，记录其实际值： ；
Make sure that rudder trim does not change more than 2 unit, If the
value exceeded, make note.
c.如果飞机有滚转趋势，请记录：
Monitor any roll tendency, make note.
(1). 左滚转 (2).右滚转
Left roll Right roll
d.将驾驶盘左转 30度，再将驾驶盘右转 30度，感觉操纵力差别不大，如差值大，记录： 中国航空网 www.aero.cn 航空翻译 www.aviation.cn 本文链接地址：工程手册 下(51)
