Last Updated On [03-11-2023]
A wing-body alone configuration airplane with a wing loading of $W / S=1000 N / m^{2}$ is flying in cruise condition at a speed $V=90 m / s$ at sea-level (air density at sea-level $\rho_{\infty}=1.22 \mathrm{~kg} / \mathrm{m}^{3}$ ). The zero lift pitching moment coefficient of the airplane is $C_{m a c}^{w b}=C_{m 0}=-0.06$ and the location of airplane aerodynamic center from the wing leading edge is $X_{a c}=0.25 c .$ Here $c$ is the chord length.
Distance of center of gravity of the aircraft $\left(X_{C G}\right)$ from the wing leading edge is
(A) $0.447 c$
(B) $-0.547 c$
(C) $0.547 c$
(D) $-0.25 c$
Question ID - 156215 :- A wing-body alone configuration airplane with a wing loading of $W / S=1000 N / m^{2}$ is flying in cruise condition at a speed $V=90 m / s$ at sea-level (air density at sea-level $\rho_{\infty}=1.22 \mathrm{~kg} / \mathrm{m}^{3}$ ). The zero lift pitching moment coefficient of the airplane is $C_{m a c}^{w b}=C_{m 0}=-0.06$ and the location of airplane aerodynamic center from the wing leading edge is $X_{a c}=0.25 c .$ Here $c$ is the chord length.
Distance of center of gravity of the aircraft $\left(X_{C G}\right)$ from the wing leading edge is
(A) $0.447 c$
(B) $-0.547 c$
(C) $0.547 c$
(D) $-0.25 c$
A wing-body alone configuration airplane with a wing loading of $W / S=1000 N / m^{2}$ is flying in cruise condition at a speed $V=90 m / s$ at sea-level (air density at sea-level $\rho_{\infty}=1.22 \mathrm{~kg} / \mathrm{m}^{3}$ ). The zero lift pitching moment coefficient of the airplane is $C_{m a c}^{w b}=C_{m 0}=-0.06$ and the location of airplane aerodynamic center from the wing leading edge is $X_{a c}=0.25 c .$ Here $c$ is the chord length.
Distance of center of gravity of the aircraft $\left(X_{C G}\right)$ from the wing leading edge is
(A) $0.447 c$
(B) $-0.547 c$
(C) $0.547 c$
(D) $-0.25 c$
Next Question :
If $3 \leq X \leq 5$ and $8 \leq Y \leq 11$ then which of the following options is TRUE?
(A) $\frac{3}{5} \leq \frac{X}{Y} \leq \frac{8}{5}$
(B) $\frac{3}{11} \leq \frac{X}{Y} \leq \frac{5}{8}$
(C) $\frac{3}{11} \leq \frac{X}{Y} \leq \frac{8}{5}$
(D) $\frac{3}{5} \leq \frac{X}{Y} \leq \frac{8}{11}$
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