Consider an airplane patterned after the Beechcraft Bonanza V-tailed, single-engine light private airplane. The characteristics of the airplane are as follows: aspect ratio = 6.2, wing area = 181 ft², Oswald efficiency factor = 0.91, weight = 3000 lb, and zero-lift drag coefficient = 0.027. The airplane is powered by a single piston engine of 345 hp maximum at sea level. Assume the power of the engine is proportional to free-stream density. The two-blade propeller has an efficiency of 0.83. Assume V = 350 ft/s and = 0.002377 slug/ft³ at sea level.

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Calculate the velocity, V_alt,and power, P_R,alt,required at 12,000 ft altitude. Assume at 12,000 ft = 1.648 10^-4 slug/ft³.

The velocity, V_alt, required at 12,000 ft altitude is 350 ft/s.

The power, P_R,alt,required at 12,000 ft altitude is 543.94 hp.