jsbsim.js/JSBSim/check_cases/piston_takeoff/scripts/c1723.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 C172 altitude hold autopilot
  -->

  <use aircraft="c172x" initialize="reset00"/>
  <run start="0.0" end="200" dt="0.00833333333333333333">

    <!-- Initialize with brakes on -->
    <property> simulation/notify-time-trigger </property>
    <property value="1"> simulation/run_id </property>
    <property value="1"> fcs/left-brake-cmd-norm </property>
    <property value="1"> fcs/right-brake-cmd-norm </property>
    <property value="1"> fcs/center-brake-cmd-norm </property>
    <property value="3.49"> guidance/specified-heading-rad </property>
    <property value="1"> guidance/heading-selector-switch </property>

    <event name="engine start">
      <description>Start the engine and set roll control to heading hold</description>
      <condition> simulation/sim-time-sec >= 0.25 </condition>
      <set name="fcs/throttle-cmd-norm" value="1.0" action="FG_RAMP" tc ="0.5"/>
      <set name="fcs/mixture-cmd-norm" value="1.00" action="FG_RAMP" tc ="0.5"/>
      <set name="propulsion/magneto_cmd" value="3"/>
      <set name="propulsion/starter_cmd" value="1"/>
      <set name="ap/roll-attitude-mode" value="1"/>
      <set name="ap/autopilot-roll-on" value="1"/>
      <notify>
        <property caption="Sim Run ID: ">simulation/run_id</property>
        <property>ap/hdg-roll-err-c1</property>
      </notify>
    </event>

    <event name="Begin roll">
      <description>Release brakes and get rolling with flaps at 10 degrees. </description>
      <condition> simulation/sim-time-sec >= 2.0 </condition>
      <set name="fcs/left-brake-cmd-norm" value="0"/>
      <set name="fcs/right-brake-cmd-norm" value="0"/>
      <set name="fcs/center-brake-cmd-norm" value="0"/>
      <set name="fcs/flap-cmd-norm" value="0.33"/>
      <notify/>
    </event>

    <event name="Rotate">
      <description>Set Autopilot for 400 ft and rotate at 49 keas. </description>
      <notify/>
      <condition> velocities/vc-kts >= 49 </condition>
      <set name="ap/altitude_setpoint" value="400.0"/>
      <set name="ap/altitude_hold" value="1"/>
      <set name="ap/roll-attitude-mode" value="1"/>
    </event>

    <event name="Set autopilot for 6000 ft.">
      <description>Set Autopilot for 6000 ft after a five second delay. </description>
      <notify/>
      <condition> velocities/vc-kts >= 49 </condition>
      <delay>5.0</delay>
      <set name="ap/altitude_setpoint" value="6000.0"/>
    </event>

    <event name="Adjust throttle/flaps">
      <description>Remove flaps at 50 ft and set heading to 100; acquire heading.</description>
      <notify/>
      <condition>
        position/h-agl-ft >= 2000
      </condition>
      <set name="fcs/flap-cmd-norm" value="0"/>
      <set name="guidance/specified-heading-rad" value="1.75"/>
      <set name="ap/roll-attitude-mode" value="1"/>
    </event>

    <event name="Time Notify" persistent="true">
      <description>Output message at 1 minute intervals</description>
      <notify>
        <property caption="Velocity (kts):       ">velocities/vc-kts</property>
        <property caption="Altitude (AGL, ft):   ">position/h-agl-ft</property>
        <property caption="Latitude (geod, deg): ">position/lat-geod-deg</property>
        <property caption="Altitude (geod, ft):  ">position/geod-alt-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>

  </run>
</runscript>