How can design maneuvering speed for newer airplanes be generally calculated?

The design maneuvering speed for newer airplanes is generally calculated as 1.7 times the stall speed in the landing configuration (Vso). This value provides a balance between ensuring that the aircraft has enough speed to maintain controlled flight during maneuvers while minimizing the risk of stalling.

Design maneuvering speed is important because it defines the maximum speed at which full deflection of the control surfaces can be applied without risking a stall. By using 1.7 Vso, this speed offers an adequate safety margin that accommodates various loads and ensures stable handling characteristics in turbulent conditions.

This approach has been established in aviation regulations and guidelines to promote safety, particularly in the context of maneuvering with potential increased drag and demands on the aircraft's performance. Thus, using a multiplier of 1.7 for Vso is a commonly accepted standard in aircraft design practices for determining maneuvering speed.