jsbsim.js/JSBSim/scripts/WK450.xml

JSBSim flight dynamics model ported to JavaScript

<?xml version="1.0"?>
<?xml-stylesheet type="text/xsl" href="http://jsbsim.sourceforge.net/JSBSimScript.xsl"?>
<runscript xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
    xsi:noNamespaceSchemaLocation="http://jsbsim.sf.net/JSBSimScript.xsd"
    name="C172-01A takeoff run">
  <!--
    This run is for testing the WK450 altitude hold autopilot
  -->

  <use aircraft="WK450" initialize="WK450_Initial_Conditions"/>
  <run start="0.0" end="200" dt="0.005">

    <property> simulation/notify-time-trigger </property>
    <property> simulation/run_id </property>

    <event>
      <description> initialize the run id </description>
      <condition> simulation/sim-time-sec >= 0.00 </condition>
      <set name="simulation/run_id" value="1"/>
      <set name="ap/heading_hold" value="1"/>
      <notify/>
    </event>

    <event name="Test brakes">
      <description>Apply brakes</description>
      <condition>
        simulation/sim-time-sec >= 10.0
      </condition>
      <set name="fcs/left-brake-cmd-norm" value="1"/>
      <set name="fcs/right-brake-cmd-norm" value="1"/>
      <notify/>
    </event>

    <event name="Test brakes">
      <description>Apply brakes</description>
      <condition>
        simulation/sim-time-sec >= 15.0
      </condition>
      <set name="fcs/left-brake-cmd-norm" value="0"/>
      <set name="fcs/right-brake-cmd-norm" value="0"/>
      <notify/>
    </event>

    <event name="engine start">
      <description>Start the engine</description>
      <condition>
        simulation/sim-time-sec >= 20.0
      </condition>
      <set name="fcs/throttle-cmd-norm" value="0.94" action="FG_RAMP" tc ="0.5"/>
      <set name="fcs/mixture-cmd-norm" value="0.87" action="FG_RAMP" tc ="0.5"/>
      <set name="propulsion/magneto_cmd" value="3"/>
      <set name="propulsion/starter_cmd" value="1"/>
      <notify>
        <property>simulation/run_id</property>
      </notify>
    </event>
<!--
    <event name="Set heading hold">
      <description>Set Heading when 5 ft AGL is reached</description>
      <notify/>
      <condition>
        position/h-agl-ft >= 5
      </condition>
      <set name="ap/heading_setpoint" value="200"/>
      <set name="ap/attitude_hold" value="0"/>
      <set name="ap/heading_hold" value="1"/>
    </event>
-->
    <event name="Set autopilot for 20 ft.">
      <description>Set Autopilot for 20 ft</description>
      <notify/>
      <condition>
        aero/qbar-psf >= 4
      </condition>
      <set name="ap/altitude_setpoint" value="100.0"/>
      <set name="ap/altitude_hold" value="1"/>
      <set name="fcs/flap-cmd-norm" value=".33"/>
    </event>

    <event name="Set autopilot for 1500 ft.">
      <description>Set Autopilot for 1500 ft</description>
      <notify/>
      <condition>
        aero/qbar-psf > 5
      </condition>
      <set name="ap/altitude_setpoint" value="1500.0"/>
    </event>

    <event name="Adjust throttle/flaps">
      <description>Remove flaps at 50 ft</description>
      <notify/>
      <condition>
        position/h-agl-ft >= 100
      </condition>
      <set name="fcs/mixture-cmd-norm" value="0.69" action="FG_EXP" tc ="400.0"/>
      <set name="fcs/flap-cmd-norm" value="0"/>
    </event>

    <event name="Time Notify" persistent="true">
      <description>Output message at 1 minute intervals</description>
      <notify>
        <property>velocities/vc-kts</property>
        <property>position/h-agl-ft</property>
      </notify>
      <condition> simulation/sim-time-sec >= simulation/notify-time-trigger </condition>
      <set name="simulation/notify-time-trigger" value="60" type="FG_DELTA"/>
    </event>

    <event name="Set heading hold">
      <description>Set Heading when 1500 ft AGL is reached</description>
      <notify/>
      <condition>
        position/h-agl-ft >= 1499
      </condition>
      <set name="ap/heading_setpoint" value="20"/>
    </event>

  </run>
</runscript>