Source code for RCAIDE.Framework.Mission.Segments.Cruise.Constant_Speed_Constant_Altitude_Loiter
# RCAIDE/Framework/Analyses/Mission/Segments/Cruise/Constant_Speed_Constant_Altitude_Loiter.py
#
#
# Created: Jul 2023, M. Clarke
# ----------------------------------------------------------------------------------------------------------------------
# IMPORT
# ----------------------------------------------------------------------------------------------------------------------
# RCAIDE imports
from RCAIDE.Framework.Mission.Segments.Evaluate import Evaluate
from RCAIDE.Framework.Core import Units
from RCAIDE.Library.Mission import Common,Segments
# ----------------------------------------------------------------------------------------------------------------------
# Constant_Speed_Constant_Altitude_Loiter
# ----------------------------------------------------------------------------------------------------------------------
[docs]
class Constant_Speed_Constant_Altitude_Loiter(Evaluate):
""" Fixed true airspeed and altitude for a fixed time.
This is useful aircraft who need to station keep.
Assumptions:
Built off of a constant speed constant altitude segment
Source:
None
"""
def __defaults__(self):
""" This sets the default solver flow. Anything in here can be modified after initializing a segment.
Assumptions:
None
Source:
N/A
Inputs:
None
Outputs:
None
Properties Used:
None
"""
# --------------------------------------------------------------------------------------------------------------
# User Inputs
# --------------------------------------------------------------------------------------------------------------
self.altitude = None
self.air_speed = None
self.time = 1.0 * Units.sec
self.true_course = 0.0 * Units.degrees
# --------------------------------------------------------------------------------------------------------------
# Mission specific processes
# --------------------------------------------------------------------------------------------------------------
initialize = self.process.initialize
initialize.conditions = Segments.Cruise.Constant_Speed_Constant_Altitude_Loiter.initialize_conditions
iterate = self.process.iterate
iterate.unknowns.controls = Common.Unpack_Unknowns.control_surfaces
iterate.unknowns.mission = Common.Unpack_Unknowns.orientation
iterate.residuals.flight_dynamics = Common.Residuals.flight_dynamics
return
