Away from high lift, a linear model of the glider in terms of the angle of incidence a (deg) and tail setting angle tt (deg) is given by:
CL (a, tt) = 0.1a + 0.01tt + 0.7
CM,0(a, tt) = -0.02a — 0.01tt — 0.13
Give the definition of the aerodynamic center.
18.104.22.168 Aerodynamic Center
Find the location xac of the aerodynamic center, given that the reference length is lref = 1.5 m.
22.214.171.124 Moment at Aerodynamic Center
Derive CM, ac.
126.96.36.199 Moment at Center of Gravity
Derive CM, cg given a 4 % positive static margin.
Is the airplane statically stable? Explain.
Derive the equilibrium incidence a(tt).
14.3 Problem 4