fastoad.models.performances.mission.segments.registered.ground_speed_change module

Classes for acceleration/deceleration segments.

class fastoad.models.performances.mission.segments.registered.ground_speed_change.GroundSpeedChangeSegment(name: str = '', target: fastoad.model_base.flight_point.FlightPoint = <object object>, isa_offset: float = 0.0, propulsion: fastoad.model_base.propulsion.IPropulsion = <object object>, polar: fastoad.models.performances.mission.polar.Polar = <object object>, polar_modifier: fastoad.models.performances.mission.polar_modifier.AbstractPolarModifier = UnchangedPolar(), reference_area: float = <object object>, time_step: float = 0.1, maximum_CL: Optional[float] = None, altitude_bounds: tuple = (-500.0, 40000.0), mach_bounds: tuple = (-1e-06, 5.0), interrupt_if_getting_further_from_target: bool = True, engine_setting: fastoad.constants.EngineSetting = EngineSetting.CLIMB, thrust_rate: float = 1.0, wheels_friction: float = 0.03)[source]

Bases: fastoad.models.performances.mission.segments.time_step_base.AbstractGroundSegment

Computes a flight path segment where aircraft is accelerated or de-accelerated on the ground

The target must define an airspeed (equivalent, true or Mach) value.

get_distance_to_target(flight_points: List[fastoad.model_base.flight_point.FlightPoint], target: fastoad.model_base.flight_point.FlightPoint) → float[source]

Computes a “distance” from last flight point to target.

Computed does not need to have a real meaning. The important point is that it must be signed so that algorithm knows on which “side” of the target we are. And of course, it should be 0. if flight point is on target.

Parameters

  • flight_points – list of all currently computed flight_points

  • target – segment target (will not contain relative values)

Returns

  1. if target is attained, a non-null value otherwise

property target: fastoad.model_base.flight_point.FlightPoint

The base class of the class hierarchy.

When called, it accepts no arguments and returns a new featureless instance that has no instance attributes and cannot be given any.