020406080100120140-2-101234certified envelopestall boundary (aerodynamic)structural limit +3.80 / -1.52 gnever exceed, 128 m/srough-air gustmanoeuvring speed Va = 101 m/sbelow: the wing stalls firstabove: the airframe fails first1 g, level flightequivalent airspeed (m/s)load factor n (g)A region, not a curve -- so it is filled, not plottedcertified envelopestall boundary (aerodynamic)structural limit +3.80 / -1.52 gnever exceed, 128 m/srough-air gust