Mestre Greve Assoc., 280 Newport Ctr. Dr., Newport Beach, CA 92660
The current method for the modeling of aircraft departure profiles is to use the standard departure profiles contained in the INM noise model. The INM model accounts for the different departure gradients based upon the flight distance to the aircraft's destination. Aircraft flying a longer distance are assumed to be heavier and as a result, would climb at a lower gradient. New techniques involve using the actual flight profiles from the FAA's ARTS radar data. State-of-the-art airport noise monitoring systems collect flight track data [Aircraft identification, Type of operation, and aircraft position (X, Y and Z)] from the ARTS data. This information can be processed to determine the actual flight profiles for each aircaft type as well as a range of profiles for a specific aircraft. Using this technique, the departure profiles used in the model account for not only the departure distance, but also pilot techniques, the actual aircraft load as well as meteorological conditions such as altitude, density, and wind speed. The result is that the modeling of aircraft departure flight profiles are based upon actual data specific to the flights and conditions at the airport under study.