Cockpit Displays and Annunciation to Help Reduce the Loss of Control (LOC) or Lack of Control (LAC) Accident Risks

This paper describes some practical cockpit aural annunciation and visual display concepts that have been developed to help reduce the risk of Loss of Control (LOC) and / or Lack of Control (LAC) by bringing awareness of the possible development of unusual attitude or stall conditions to the pilots. An additional objective was to provide sufficient information to aid in the recovery from the loss of control. The approach taken by the team in developing any solution was to minimize the impact on the cockpit both from the pilot understanding and training as well as the overall cost to implement into the avionics suite. Using this approach, our team developed several potential solutions. One of our solutions was to add a corrective roll arrow to the attitude indicator when an excessive bank angle is detected. A proposed preventative measure is integration of Synthetic Vision System into the head down primary flight display. Additional solutions utilized aural annunciations to alert the pilot to inappropriate flap settings and low airspeed conditions.