I wrote in message ...

The "maneuvering speed" placarded in the cockpit is not Va. It is Vo. It
is
defined by 23.1507 and the placard is mandated by 23.1563. "Vs is a
selected speed that is not *greater* than Vsvn".

Just to clarify, Vsvn is the way that Vs*sqrt (n) pasted from the text. n
is the "positive limit maneuvering load factor".

Julian