Flight deck display systems and methods for visually indicating low speed change conditions during takeoff and landing

A flight deck display system deployed onboard an aircraft, the flight deck display system comprising:

• a cockpit display device;
• a controller operatively coupled to the cockpit display device and configured to:
• establish the speed trend of the aircraft over a predetermined time period;
• generate a primary flight display on the cockpit display device including a speed trend vector graphic representative of the established speed trend;
• during takeoff of the aircraft from a runway, determine whether the acceleration of the aircraft is less than a first acceleration threshold based, at least in part, on the relative position of the aircraft to the end of the designated runway;
• and
• alter the appearance of speed trend vector graphic in a first predetermined manner if the acceleration of the aircraft is less than the first deceleration threshold.