The Rudder is designed to control the aircraft in normal operations for lateral control and to counteract thrust asymmetry in some abnormal situations.
In order to avoid exceeding structural loads on the rudder and vertical stabilizer, the Rudder SHOULD NOT BE USED:
- To induced roll
- To counter roll, induced by any type of turbulence
The A320 "STOP RUDDER INPUT" aural alert and red PFD message associated with MASTER WARNING light is triggered when inappropriate rudder inputs are detected. These alerts advise the flight crew to avoid excessive rudder load. The flight crew should react and immediately release the rudder pedals.
In Aviation Industry we already have some accidents because of inappropriate rudder Inputs.
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