Final answer:
Flight envelope protections provide safety and control measures for an aircraft to operate within its performance limits and prevent dangerous conditions. These protections include angle of attack, bank angle, stall, and envelope limit protections.
Step-by-step explanation:
The flight envelope of an aircraft refers to the set of conditions and limitations within which the aircraft can safely operate. Flight control laws are a set of rules and algorithms implemented in the aircraft's flight control system to provide stability, control, and protection during different phases of flight. They ensure that the aircraft stays within its performance limits and operates safely within its flight envelope.
Flight envelope protections typically include:
- Angle of Attack Protection: This protection prevents the aircraft from exceeding its critical angle of attack, which is the angle at which the wings lose lift and the aircraft may stall. It limits the aircraft's pitch attitude and prevents excessive nose-up commands from the pilot.
- Bank Angle Protection: This protection limits the aircraft's roll angle to avoid excessive bank angles that may compromise safety or comfort. It prevents the aircraft from overbanking and provides roll stabilization.
- Stall Protection: This protection monitors the aircraft's airspeed and angle of attack to prevent an aerodynamic stall. It provides warnings, flight control inputs, and automated recovery mechanisms to prevent the aircraft from stalling.
- Envelope Limit Protection: This protection ensures that the aircraft stays within its structural and aerodynamic limits. It limits the control inputs to prevent the aircraft from entering regions of the flight envelope where structural damage or loss of control may occur.