to increase the value of drag divergence Mach number
to decrease the value of drag divergence Mach number
to increase the value of critical divergence Mach number
to decrease the value of critical divergence Mach number
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The Correct Option isA
Solution and Explanation
Step 1: Define Supercritical Airfoil.
A supercritical airfoil is designed to delay the onset of shock waves and reduce the effects of wave drag at high subsonic speeds, near transonic conditions.
Step 2: Purpose of Supercritical Airfoil.
The purpose of a supercritical airfoil is to increase the drag divergence Mach number. This means the airfoil allows the aircraft to fly at higher subsonic speeds without a significant increase in drag due to shock waves.