When use each time, lift the weight objects low to test the brake effectiveness.
每次使用时，首先提升重物低些，试验制动效果。
Conventional trailing-edge wing flaps help delay the stall to a higher lift coefficient, but only with limited effectiveness.
传统的后缘襟翼有助于延缓失速到一个更高的升力系数，但只有有限的成效。
The results show that the flying qualities are most sensitive to variations of the longitudinal control effectiveness and the moment of inertia besides a little to variation of the lift curve slope.
结果表明，飞行品质对操纵导数及惯矩的变化最灵敏，对升力线斜率变化呈一定的灵敏度，而对其它参数变化则不太灵敏；
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