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by ectocardia
731 days ago
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"Dutch Roll" in context: it's one of the dynamic modes of a plane -- a bit like the "phugoid" (e.g. when your paper airplane repeatedly speeds downward, pitches up, stalls, and speeds downward again on its way to the ground). In broad strokes, the dynamic modes can have natural frequencies -- in the same sense often used when speaking of resonance, transfer functions -- and there's a trade-off between (1) having low natural frequencies and (2) having a responsive control system. https://en.wikipedia.org/wiki/Aircraft_dynamic_modes |
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