Design airspeeds shall be established for which the aeroplane
structure is designed to withstand the corresponding manoeuvring
and gust loads. To avoid inadvertent exceedances due
to upsets or atmospheric variations, the design airspeeds shall
provide sufficient margin for the establishment of practical
operational limiting airspeeds. In addition, the design airspeeds
shall be sufficiently greater than the stalling speed of
the aeroplane to safeguard against loss of control in turbulent
air. Consideration shall be given to a design manoeuvring