| 摘要 |
PURPOSE: An angle of 90 swash 4 servo direct method that increases efficiency of an airplane and has excellent stability of motion is provided. CONSTITUTION: An angle of 90 swash 4 servo direct method comprises the steps of:moving forward by lifting a swash plate and lowering a link ball down to 50 percents and lifting a servo and a bell crank up to 50 percents; moving to the left by the swash plate going up and the servo down to 50 percents and by the bell crank going up and the link ball up to 50percents; moving upward and downward by moving the swash plate, the servo, the bell crank and the link ball up and down at the same time, to have excellent stability.
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