a flight control system moves elevators according to a pilot command summed with an automatic command . the flight control system monitors a set of flight parameters to determine if the flight vehicle is operating inside a permitted envelope . the flight controls system incorporates automatic protections thru the automatic elevator command if the flight vehicle is close to its envelope limits . the exemplary illustrative non - limiting implementation herein provides automatic protections in order to protect the flight vehicle from low speeds , high attitude , stalls and buffetings .