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b) Empirical correction for lift effecti,veness of plain trailing-edge flaps
Fig.337 Empiricalcorrectionfactorforlifteffecl:ivenessofplaintrailing^edgeflaps.l
212 PERFORMANCE, STABILITY, DYNAMICS, AND CONTROL
We observe that this term is exactly the same as that given in Eq. (3.63), which
should not be surprising because, during a disturbance in angle of attack, the
elevator is supposed to be held constant (stick-fixed).
Using Eqs. (3.92) and (3.94), the elevator defiection for longitudinal trim
(Cm = 0) iS given by
8, = C~.wxa + Cmac.w + Cm f - a,(aro - iw + it - e)Vi r7: (3.100)
at V i rltt
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动力机械和机身手册1(165)
