$($c$)$ De'termine the elevator size $(S_e)$ to trim the aircract at $={10}^0$ for an elevator deflection $S_e=-10.$ The horizontal tail characteristics are $V_H=0\mathrm{.}5$;$C_{L_t}=0\mathrm{.}08\frac{1}{\text{d}\text{e}\text{g}}$;$S_t=40ft$

Control surface area$/$lifting surface area

$($d$)$ Determine most eg position for shich the acircaft can be stalled. The $C_{\text{m}\text{e}\text{x}}$ for the aircraft is $1\mathrm{.}65,$ the max elevator defflections are $-15{}_e+15$