A jet transport aircraft cruises at 12 km altitude in steady level flight at 820 km/hr. Model the aircraft fuselage as a circular cylinder with diameter D = 4 m and length L = 40 m. Neglecting compressibility effects, estimate the skin friction drag force on the fuselage. Evaluate the power needed to overcome this force. Use density = 0.312 kg/m3, viscosity = 1.42 x 10-5 kg/m-s and drag coefficient = 0.002.