Consider a twin-propeller engine airplane of gross weight LaTeX: W=4000\;lbW = 4000 l b flying with velocity LaTeX: V=180 \; mphV = 180 m p h at altitude where density LaTeX: \rho = 0.002 \; slug/ft^3rho = 0.002 s l u g / f t 3. The wing area LaTeX: S_w=180 \;ft^2S w = 180 f t 2, span LaTeX: b=32\;ftb = 32 f t, wing Oswald efficiency LaTeX: e=0.82e = 0.82, equivalent parasite drag area LaTeX: f=1.6\;f^2f = 1.6 f 2 and wing parasite drag is LaTeX: 40 \%40 % of the total parasite drag. Finally the engine propeller efficiency isLaTeX: \eta=0.85η = 0.85. Find the Brake Horse Power LaTeX: BHPB H P for each engine.