The aircraft is directionally static stable if the derivative of directional static stability Cnb is negative
A、正确;
B、错误
发布时间：2025-07-06 21:11:04
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答案：错误
【分析】:According to the sign convention in this course, right sideslip is positive. If the right yawing moment (positive) is generated, the sideslip can be eliminated, so Cnb is positive stable.
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