Problem 2 (35%): Consider an airplane with the following characteristics: Weight, W Zero-lift moment coefficient, Go...
The following specifications of an aircraft are given. Wing area: 17 m 2 Gross weight: 22700 N Elevator control effectiveness: 0.04 C M,0 = 0.06 Slope of lift coefficient with respect to angle of attack: 0.08 deg -1 Slope of moment coefficient with respect to angle of attack: -0.0133 deg -1 Horizontal tail volume ratio: 0.34 Tail efficiency: 1 What is the elevator angle required to trim at 58 m/s? Provide answer to 1 decimal place in units of degrees.
Ex.3 /35 A Cessna 172 has a cruise speed V-226 km/h and weight W-1,000Kg. The wing area is S-16mt with a wing span b-1lm Assuming the wing rectangular, what is the Reynolds number at an altitude z-1,000m. A model of this airplane, scaled by a factor of 2, is tested in a wind tunnel at sea level. What should be the velocity in the wind tunnel to have dynamics similarity (neglect Mach number effects). What will be the lift measured...
Problemi (25%): Consider a model airplane with the characteristics: Weight, W wing area Drag-Polar: C-0.1+0.057C1 Suppose it is in a cruise flight at sea level (density 2.3769*10*slugs ft)
Consider a large jet airplane which has the following characteristics: Maximum gross weight = 130000 N General • Fuel weight = 50000 N Wing 2 Wing area = 50 m Wing aspect ratio (AR) = 6.5 Wing span efficiency factor (e) = 0.87 Aerodynamics . = MARE • Zero-lift drag coefficient = 0.032 Drag Cp = Cpo + kc where k = kı + kz kı = 0 and k3 Lift CLmax = 1.4 during flight Two turbojet engines. (thrust...
3. For this problem, use the following aircraft properties: Gross weight, W-20,000 lbs Wing area, S 300 ft Mean aerodynamic chord of wing. -6f CG range: Max forward: 25% MAC, Max aft: 55% MAC Aerodynamic center of wing/body is at 25% MAC Tail lift slope, a-4.5 rad Elevator effectiveness, ae 2.0 rad Wing/body lift coefficient, CLwb 5.50ab Wing/body pitching moment coefficient about aerodynamic center, Cmac wb 0.1 · · b, or σε %α-0.3 radi Tail downwash angle, ε-0.3 Aircraft drag...