Performance Derivatives in Machup 4

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sws...@g.uky.edu

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Jan 27, 2019, 11:59:42 PM1/27/19

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I’m wondering if anyone can tell me what the CY,beta CI,beta and CN,beta derivatives stand for. Are they control or stability derivatives? Does Beta stand for the slidslip angle?

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doug.hunsaker

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Jan 29, 2019, 1:31:20 PM1/29/19

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Hi,

Beta is sideslip. Those are stability derivatives with respect to sideslip.

CY = side force coefficient

Cl = rolling moment coefficient

Cn = yawing moment coefficient

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