16. The curves shown below were prepared by a student after performing wind tunnel experiments on a scale airfoil model in the Aerolab. The tests were done on the airfoil alone, the airfoil with flap only, with slat and flap and lastly with a turbulence generator. Using these graphs, prior to performing his actual aerial maneuvers a pilot calculates the slowest possible speed at which he can achieve stable, level flight. He determined from his initial calculations based on flying with the airfoil alone that he would be able to maintain stable level flight at exactly 250mph. Using the lift coefficient graph below, how much slower can the pilot fly after employing the use of only flaps? MENG 343: Characteristics of High Lift Devices vs AOA Lift Coefficient (CJ 0.5 0 -10 15 2.5 10 Angle of Attack ( Airfoil Alone Flap Only A Slat & Flap Turbulence Generato 15 20 25