A method for displaying a predicted value of a trip parameter on a display unit in a flight deck onboard an airplane, comprising: (a) storing a baseline airplane performance data table in a first non-transitory tangible computer-readable medium, the baseline airplane performance data table comprising a first lookup table having inputs which are values of flight parameters and having outputs which are predicted values of a trip parameter, which trip parameter values are functions of baseline values of an airplane characteristic and the values of the flight parameters; (b) obtaining airplane characteristic correction data representing corrections to be applied to the baseline values of the airplane characteristic of the airplane; (c) computing corrected values of the airplane characteristic by applying the corrections to the baseline values of the airplane characteristic of the airplane; (d) generating a dynamic airplane performance data table comprising a second lookup table having inputs which are values of the flight parameters and having outputs which are updated predicted values of the trip parameter, which trip parameter values are functions of the corrected values of the airplane characteristic and the values of the flight parameters; (e) storing the dynamic airplane performance data table in a second non-transitory tangible computer-readable medium; (f) measuring a physical embodiment of the airplane characteristic onboard the airplane to produce a real-time measured value of the airplane characteristic; (g) determining a magnitude of a deviation of the real-time measured value of the airplane characteristic from a corresponding one of the corrected values of the airplane characteristic; (h) comparing the magnitude of the deviation to a specified threshold; (i) repopulating the dynamic airplane performance data table based on the magnitude of the deviation in response to the magnitude of the deviation exceeding the specified threshold; (j) retrieving an updated predicted value of the trip parameter from the dynamic airplane performance data table during a current flight of the airplane; and (k) displaying alphanumeric symbology representing the retrieved updated predicted value on the display unit in the flight deck during the current flight of the airplane. (a) storing a baseline airplane performance data table in a first non-transitory tangible computer-readable medium, the baseline airplane performance data table comprising a first lookup table having inputs which are values of flight parameters and having outputs which are predicted values of a trip parameter, which trip parameter values are functions of baseline values of an airplane characteristic and the values of the flight parameters; (b) obtaining airplane characteristic correction data representing corrections to be applied to the baseline values of the airplane characteristic of the airplane; (c) computing corrected values of the airplane characteristic by applying the corrections to the baseline values of the airplane characteristic of the airplane; (d) generating a dynamic airplane performance data table comprising a second lookup table having inputs which are values of the flight parameters and having outputs which are updated predicted values of the trip parameter, which trip parameter values are functions of the corrected values of the airplane characteristic and the values of the flight parameters; (e) storing the dynamic airplane performance data table in a second non-transitory tangible computer-readable medium; (f) measuring a physical embodiment of the airplane characteristic onboard the airplane to produce a real-time measured value of the airplane characteristic; (g) determining a magnitude of a deviation of the real-time measured value of the airplane characteristic from a corresponding one of the corrected values of the airplane characteristic; (h) comparing the magnitude of the deviation to a specified threshold; (i) repopulating the dynamic airplane performance data table based on the magnitude of the deviation in response to the magnitude of the deviation exceeding the specified threshold; (j) retrieving an updated predicted value of the trip parameter from the dynamic airplane performance data table during a current flight of the airplane; and (k) displaying alphanumeric symbology representing the retrieved updated predicted value on the display unit in the flight deck during the current flight of the airplane.