traffic.algorithms.performance

class traffic.algorithms.performance.openap.FuelflowEstimation(initial_mass=None, typecode=None, engine=None)

Estimates the fuel flow with OpenAP.

The OpenAP model is based on the aircraft type (actually, the most probable engine type) and on three features commonly available in ADS-B data:

  • altitude (in ft),

  • vertical rate (in ft/min), and

  • speed (in kts), in order of priority, TAS (true air speed), CAS (computed air speed, used to compute TAS) and groundspeed, if no air speed is available.

Parameters:

  • initial_mass (None | str | float) – by default (None), 90% of the maximum take-off weight. You can also pass a value to initialise the mass. When initial_mass > 1, the mass is in kg. When initial_mass <= 1, it represents the fraction of the maximum take-off weight.

  • typecode (None | str) – by default (None), use the typecode column if available, the provided aircraft database to infer the typecode based on the icao24. Ignored if the engine parameter is not None.

  • engine (None | str) – by default (None), use the default engine associated with the aircraft type.

Returns:

the same instance enriched with three extra features: the mass, the fuel flow (in kg/s) and the total burnt fuel (in kg).

class traffic.algorithms.performance.openap.PollutantEstimation(initial_mass=None, typecode=None, engine=None)

Estimates the fuel flow with OpenAP.

The estimation method is based on the :class:FuelflowEstimation which is also called on the same instance.

Returns:

the same instance with new columns for various pollutants, including H20, HC, CO, CO2, NOx and SOx are added to the data frame.