数十年来，驾驶一架飞行机、稳定航线并处理紧急问题的最好方式就是一位人类飞行员的眼睛、平衡感以及熟练地用手操作。
For decades a human pilot's eyes, sense of balance and hands were simply the best way to guide a flying machine, stay on course and cope with problems.
移动其中一个就会影响到其他三个，所以飞行员必须熟练于处理每一个操纵装置对其他三个操纵装置所产生的不良影响。
Moving one control affects the other controls, so the pilot must become adept at dealing with the side-effects that each control has on the others.
经过训练而能熟练操作这种系统的飞行员就可以实现盲飞，或者进行某种复杂的飞行动作，例如让直升机稳定地停定在半空中。
Pilots who train with this system can learn to fly blindfolded or to carry out complex maneuvers, such as holding the helicopter in a stationary hover.
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