text: #====================================================================
  # Hover model of the aircraft
  # Performs basic sizing values and obtains the power required
  #====================================================================
  import math
  import os
  
  #====================================================================
  # Function body (segID comes in with BASE 1)
  #====================================================================
  
  class _idlemodel:
    def idlemodel(self, segID, itercount):
  
     icontinue      = 1
  
  #====================================================================
  # assign pointer shortcuts
  #====================================================================
  
     mission        = self.mission
     rotor          = self.rotor
     pi             = self.constants.pi
  
     iseg           = segID - 1       # python counting
  
     segment        = mission.segment[iseg]
  
  #====================================================================
  # if first iteration (assume idle power is a fraction of total power)
  # else assume that the idle power is equal to the profile power
  #====================================================================
     
     if(itercount==1):
        segment.p_rotor      = 0.1*self.p_ins              # watts
        segment.p_req        = segment.p_rotor * 1.e-3     # kw
        segment.torque       = 0.01e0
        segment.thrust       = 0.01e0
        
     else:
        cd0                  = self.rotor.cd0
        cpProfile            = rotor.solidity * cd0 / 8.0
  
        Cptotal              = cpProfile *rotor.num
  
        power                = Cptotal* segment.rho*rotor.area*(0.85*rotor.tipspeed)**3
  
        mission.segment[iseg].p_rotor      = power                 # in watts
        mission.segment[iseg].p_req        = power*1.e-3           # in kW
  
        mission.segment[iseg].torque       = 0.e0
        mission.segment[iseg].thrust       = 0.e0             # N-m
  
     return icontinue
  