Determining an adaptive flight envelope for an aircraft

A method comprising:

• obtaining a training data comprising a training flight operation data, a training route information, a training weather data, and a performance impact data recorded during actual flight operations;
• and
• derive, from the training data, a training value of the route information, a training value of a flight parameter recorded during diverse weather conditions, and a corresponding training value of weather conditions;
• and
• training a flight estimation model based on the training value of the route information, training value of the flight parameter, training value of the weather conditions, and the corresponding performance impact data indicating impact of various conditions on flight operations of an aircraft, wherein the flight estimation model, when trained, is to determine a permissible range of values for the flight parameter for completing a planned flight of the aircraft based on flight data, an operational parameter and weather data.

A non-transitory computer-readable medium comprising instructions, the instructions being executable by a processing resource to:

• obtain route information for a planned flight of an aircraft;
• obtain operational parameter of the aircraft;
• obtain weather data comprising current weather data and the forecasted weather data along the flight path to be taken for the planned flight;
• use a flight estimation model to determine a permissible range of values of a flight parameter based on the flight data, operational parameter and weather data;
• obtain a current value of the flight parameter;
• compare the current value of the flight parameter with the permissible range of values determined for that flight parameter;
• and
• on determining the current value of the flight parameter lying outside the permissible range of values of the flight parameter, generate a flight safety briefing to be rendered on a display device indicating a plurality of flight safety recommendations to a pilot.