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- 1. Methodology for estimating the control derivatives of a helicopter in ground effect from flight test data Presented by Andrei Popov Sep 7, 2009
- 4. Linear Model Sep 7, 2009 Helicopter linear and angular accelerations in 6 degrees of freedom State vector Control vector Stability derivatives Control derivatives influenced by IGE Forces and Moments x,u, X y,v, Y z,w, Z M,q L,p N,r
- 6. Data processing Sep 7, 2009 Torque coefficient for helicopter in hover [1],[2]: Polynomial fitting of C Q ( C T ) out of ground effect: Polynomial fitting of C Q (collective) : C Q vs. H C Q vs. C T C Q vs. collective
- 7. Data processing 2 Sep 7, 2009 K(H) – Constant of ground effect vs. altitude [3]: Polynomial fitting of K(H) : Polynomial fitting of C Q (C T ,H) :