Problem Graphic

At a pilot training school, an instructor asked his students what is the takeoff speed required for a specific aircraft when the angle of attack is set at 6^o. The aircraft, weighing 3,500 lb_f, is assumed to be fully loaded with fuel. The following specification is provided by the aircraft manufacturer:

     C_L = 0.3(1 + 0.2α)

where C_L is the lift coefficient and α is the angle of attack in degrees.

Determine the takeoff speed of the aircraft.

• The planform area of the aircraft is 350 ft².