drag divergence Mach number


Also found in: Wikipedia.

drag divergence Mach number

The Mach number at which there is a sudden rise in wing drag as a result of the formation of shock waves. Buffet may take place and control difficulty may occur at this Mach number.
References in periodicals archive ?
Optimum OTWEM configuration reduces wave drag on the wings, while increasing the wing's drag divergence Mach number, thus increasing the aircraft's performance and fuel efficiency.
According to the AIAA, Fujino is being recognized for "pioneering the unique optimum Over-The-Wing Engine Mount (OTWEM) configuration that reduces wave drag and increases drag divergence Mach number.