787-9-Trent.xml

<?xml version="1.0"?>
<?xml-stylesheet type="text/xsl" href="http://jsbsim.sourceforge.net/JSBSim.xsl"?>
<fdm_config name="787-9" version="2.0" release="BETA"
    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
    xsi:noNamespaceSchemaLocation="http://jsbsim.sourceforge.net/JSBSim.xsd">

    <fileheader>
        <author> Narendran Muraleedharan, Dwayne Gable and Nicky Ivy, Jonathan Redpath</author>
        <filecreationdate> 2017-04-21 </filecreationdate>
        <version>$Revision: 1.1 $</version>
        <description> Flight Dynamics Model for the Boeing 787-9 Trent. Revised by Jonathan Redpath</description>
    </fileheader>

    <!-- UNIT CONVERSIONS :
1 meter = 3.2 feet
1 meter = 39.4 inches
1 sq. m = 10.24 sq. ft.
1 feet  = 12 inches -->

    <metrics>
        <wingarea unit="FT2"> 3880 </wingarea> <!-- Wikipedia -->
        <wingspan unit="FT">  197.3 </wingspan> <!-- Wikipedia -->
        <wing_incidence unit="DEG"> 2 </wing_incidence> <!-- From old 787 FDM -->
        <chord unit="FT">   38.94 </chord> <!-- Measured -->
        <htailarea unit="FT2">  343.36 </htailarea> <!-- Calculated on paper -->
        <htailarm unit="FT">   81.6 </htailarm> <!-- Measured -->
        <vtailarea unit="FT2">  471.77728 </vtailarea> <!-- Calculated on paper -->
        <vtailarm unit="FT">   0 </vtailarm>
        <location name="AERORP" unit="IN">
            <x> 0 </x>
            <y> 0 </y>
            <z> 0 </z>
        </location>
        <!-- Center of AircrafT (0,0,0 in Ac3D) is taken as the Eyepoint -->
        <location name="EYEPOINT" unit="IN">
            <x> 0 </x>
            <y> 0 </y>
            <z> 0 </z>
        </location>
        <!-- Center of Aircraft (in Ac3D) is taken as the Vehicle Reference Point -->
        <location name="VRP" unit="IN">
            <x> 0 </x>
            <y> 0 </y>
            <z> 0 </z>
        </location>
    </metrics>

    <mass_balance>
        <ixx unit="SLUG*FT2"> 7675399.200088156 </ixx> <!-- Values from YASIM Solver (old 787 FDM) -->
        <iyy unit="SLUG*FT2"> 6595543.304209171 </iyy> <!-- Values from YASIM Solver (old 787 FDM) -->
        <izz unit="SLUG*FT2"> 22197429.613714606 </izz> <!-- Values from YASIM Solver (old 787 FDM) -->
        <ixy unit="SLUG*FT2"> 0.015488805 </ixy> <!-- Values from YASIM Solver (old 787 FDM) -->
        <ixz unit="SLUG*FT2"> 0.015488805 </ixz> <!-- Values from YASIM Solver (old 787 FDM) -->
        <iyz unit="SLUG*FT2">         0 </iyz>
        <emptywt unit="LBS"> 277000 </emptywt> <!-- Supposed to be 242000 but the plane acts too heavy with that setting -->
        <location name="CG" unit="IN">
            <!-- Values from YASIM Solver (old 787 FDM) -->
            <x> -16 </x>
            <y>   0.00 </y>
            <z>22.5972</z>
        </location>

        <!--Crew. Min 350 Max 500 Default 350, for two crew members in the
	cockpit.-->

        <pointmass name="Crew">
            <weight unit="LBS">340</weight>
            <location name="POINTMASS" unit="IN">
                <x>-898.32</x>

                <z>51.22</z>
            </location>
        </pointmass>

        <!--First class. 12 seats, adding 360 pounds for 30 pounds of seat
	accessories for each seat. Min 360 Max 2160 Default 1800-->

        <pointmass name="first-class">
            <weight unit="LBS">1800</weight>
            <location name="POINTMASS" unit="IN">
                <x>-591</x>

                <z>78.8</z>
            </location>
        </pointmass>

        <!--Business class. 42 seats. Min 0 Max 7560 Default 6400-->

        <pointmass name="business-class">
            <weight unit="LBS">6400</weight>
            <location name="POINTMASS" unit="IN">
                <x>-216.7</x>

                <z>78.8</z>
            </location>
        </pointmass>

        <!--Economy class. 200 seats. Min 0 Max 36000 Default 26000-->

        <pointmass name="economy-class">
            <weight unit="LBS">27000</weight>
            <location name="POINTMASS" unit="IN">
                <x>157.6</x>

                <z>78.8</z>
            </location>
        </pointmass>

        <!--Forward cargo. I don't know how much cargo usually goes on an
	average plane flight, so I guessed. Min 0 Max 10000 Default 10000-->

        <pointmass name="forward-cargo">
            <weight unit="LBS">10000</weight>
            <location name="POINTMASS" unit="IN">
                <x>-394</x>

                <z>-39.4</z>
            </location>
        </pointmass>

        <!--Rear cargo. Same as above, but Min 0 Max 10000 Default 5000-->

        <pointmass name="forward-cargo">
            <weight unit="LBS">5000</weight>
            <location name="POINTMASS" unit="IN">
                <x>157.6</x>

                <z>-39.4</z>
            </location>
        </pointmass>
    </mass_balance>

    <ground_reactions>

        <!-- Nose Gear Contact Point -->
        <contact type="BOGEY" name="NOSE_GEAR">
            <location unit="IN">
                <x> -809.50058 </x>
                <y> 0.00 </y>
                <z> -143.36872 </z>
            </location>
            <static_friction>  0.40 </static_friction>
            <dynamic_friction> 0.30 </dynamic_friction>
            <rolling_friction> 0.02 </rolling_friction>
            <spring_coeff unit="LBS/FT"> 160000 </spring_coeff>
            <damping_coeff unit="LBS/FT/SEC"> 80000 </damping_coeff>
            <max_steer unit="DEG"> 70 </max_steer>
            <brake_group>NONE</brake_group>
            <retractable>1</retractable>
        </contact>

        <!-- Left Main Gear Contact Point -->
        <contact type="BOGEY" name="LEFT_MAIN">
            <location unit="IN">
                <x> 77.1058 </x>
                <y> -193.59978 </y>
                <z> -153.63242 </z>
            </location>
            <static_friction>  0.40 </static_friction>
            <dynamic_friction> 0.35 </dynamic_friction>
            <rolling_friction> 0.02 </rolling_friction>
            <spring_coeff unit="LBS/FT"> 833000 </spring_coeff>
            <damping_coeff unit="LBS/FT/SEC"> 166600 </damping_coeff>
            <max_steer unit="DEG">0</max_steer>
            <brake_group>LEFT</brake_group>
            <retractable>1</retractable>
        </contact>

        <!-- Right Main Gear Contact Point -->
        <contact type="BOGEY" name="RIGHT_MAIN">
            <location unit="IN">
                <x> 77.1058 </x>
                <y> 193.59978 </y>
                <z> -153.63242 </z>
            </location>
            <static_friction>  0.40 </static_friction>
            <dynamic_friction> 0.35 </dynamic_friction>
            <rolling_friction> 0.02 </rolling_friction>
            <spring_coeff unit="LBS/FT"> 833000 </spring_coeff>
            <damping_coeff unit="LBS/FT/SEC"> 166600 </damping_coeff>
            <max_steer unit="DEG">0</max_steer>
            <brake_group>RIGHT</brake_group>
            <retractable>1</retractable>
        </contact>

        <!-- Left Wing Tip Contact Point -->
        <contact type="STRUCTURE" name="LEFT_WING_TIP">
            <location unit="IN">
                <x> 549.236 </x>
                <y> -1173.48172 </y>
                <z> 154.83018 </z>
            </location>
            <static_friction>  0.5 </static_friction>
            <dynamic_friction> 0.4 </dynamic_friction>
            <spring_coeff unit="LBS/FT">      100000 </spring_coeff>
            <damping_coeff unit="LBS/FT/SEC"> 20000 </damping_coeff>
            <brake_group> NONE </brake_group>
            <retractable>0</retractable>
        </contact>

        <!-- Right Wing Tip Contact Point -->
        <contact type="STRUCTURE" name="RIGHT_WING_TIP">
            <location unit="IN">
                <x> 549.236 </x>
                <y> 1173.48172 </y>
                <z> 154.83018 </z>
            </location>
            <static_friction>  0.5 </static_friction>
            <dynamic_friction> 0.4 </dynamic_friction>
            <spring_coeff unit="LBS/FT">      100000 </spring_coeff>
            <damping_coeff unit="LBS/FT/SEC"> 20000 </damping_coeff>
            <brake_group> NONE </brake_group>
            <retractable>0</retractable>
        </contact>

        <!-- Tail (in case of a tail strike) Contact Point -->
        <contact type="STRUCTURE" name="TAIL_STRIKE">
            <location unit="IN">
                <x> 924.93864 </x>
                <y> 0 </y>
                <z> 3.41992 </z>
            </location>
            <static_friction>  0.5 </static_friction>
            <dynamic_friction> 0.4 </dynamic_friction>
            <spring_coeff unit="LBS/FT">      100000 </spring_coeff>
            <damping_coeff unit="LBS/FT/SEC"> 20000 </damping_coeff>
            <brake_group> NONE </brake_group>
            <retractable>0</retractable>
        </contact>

        <!-- Nose (used for Ditching) Contact Point -->
        <contact type="STRUCTURE" name="NOSE">
            <location unit="IN">
                <x> -984.2908 </x>
                <y> 0 </y>
                <z> -29.8455 </z>
            </location>
            <static_friction>  0.5 </static_friction>
            <dynamic_friction> 0.4 </dynamic_friction>
            <spring_coeff unit="LBS/FT">      100000 </spring_coeff>
            <damping_coeff unit="LBS/FT/SEC"> 20000 </damping_coeff>
            <brake_group> NONE </brake_group>
            <retractable>0</retractable>
        </contact>

    </ground_reactions>

    <propulsion>

        <engine file="trent_1000-9">
            <location unit="IN">
                <x> -211.92078 </x>
                <y> -383.15712</y>
                <z> -31.29148 </z>
            </location>
            <orient unit="DEG">
                <pitch> 0.00 </pitch>
                <roll>   0.00 </roll>
                <yaw>   0.00 </yaw>
            </orient>
            <feed>2</feed>
            <feed>0</feed>
            <thruster file="direct">
                <location unit="IN">
                    <x> -211.92078 </x>
                    <y> -383.15712</y>
                    <z> -31.29148 </z>
                </location>
                <orient unit="DEG">
                    <pitch> 0.00 </pitch>
                    <roll>   0.00 </roll>
                    <yaw>   0.00 </yaw>
                </orient>
            </thruster>
        </engine>

        <engine file="trent_1000-9">
            <location unit="IN">
                <x> -211.92078 </x>
                <y> 383.15712</y>
                <z> -31.29148 </z>
            </location>
            <orient unit="DEG">
                <pitch> 0.00 </pitch>
                <roll>   0.00 </roll>
                <yaw>   0.00 </yaw>
            </orient>
            <feed>1</feed>
            <feed>2</feed>
            <thruster file="direct">
                <location unit="IN">
                    <x> -211.92078 </x>
                    <y> 383.15712</y>
                    <z> -31.29148 </z>
                </location>
                <orient unit="DEG">
                    <pitch> 0.00 </pitch>
                    <roll>   0.00 </roll>
                    <yaw>   0.00 </yaw>
                </orient>
            </thruster>
        </engine>

        <!-- Wing Fuel Tank LEFT -->
        <tank type="FUEL" number="0">
            <location unit="IN">
                <x> 0 </x>
                <y> -295.5 </y>
                <z> 25.61 </z>
            </location>
            <capacity unit="KG"> 23586.80324 </capacity>
            <contents unit="KG"> 15000 </contents>
        </tank>

        <!-- Wing Fuel Tank RIGHT -->
        <tank type="FUEL" number="1">
            <location unit="IN">
                <x> 0 </x>
                <y> 295.5 </y>
                <z> 25.61 </z>
            </location>
            <capacity unit="KG"> 23586.80324 </capacity>
            <contents unit="KG"> 15000 </contents>
        </tank>

        <!-- Central Fuel Tank -->
        <tank type="FUEL" number="2">
            <location unit="IN">
                <x> 0.00 </x>
                <y> 0.00 </y>
                <z> -39.4 </z>
            </location>
            <capacity unit="KG"> 54431.0844 </capacity>
            <contents unit="KG"> 30000 </contents>
        </tank>

    </propulsion>

    <system file="pushback" />
    <system file="Defines" />

    <flight_control name="FCS: 787-8">

        <channel name="Pitch">
            <summer name="Pitch Trim Sum">
                <input>fcs/elevator-cmd-norm</input>
                <input>fcs/pitch-trim-cmd-norm</input>
                <clipto>
                    <min> -1 </min>
                    <max>  1 </max>
                </clipto>
            </summer>

            <aerosurface_scale name="Elevator Control">
                <input>fcs/pitch-trim-sum</input>
                <range>
                    <min> -0.35 </min>
                    <max>  0.35 </max>
                </range>
                <output>fcs/elevator-pos-rad</output>
            </aerosurface_scale>

            <aerosurface_scale name="elevator normalization">
                <input>fcs/elevator-pos-rad</input>
                <range>
                    <min> -1 </min>
                    <max>  1 </max>
                </range>
                <output>fcs/elevator-pos-norm</output>
            </aerosurface_scale>

        </channel>

        <channel name="Roll">
            <summer name="Roll Trim Sum">
                <input>fcs/aileron-cmd-norm</input>
                <input>fcs/roll-trim-cmd-norm</input>
                <clipto>
                    <min> -1 </min>
                    <max>  1 </max>
                </clipto>
            </summer>

            <aerosurface_scale name="Left Aileron Control">
                <input>fcs/roll-trim-sum</input>
                <range>
                    <min> -0.25 </min>
                    <max>  0.25 </max>
                </range>
                <output>fcs/left-aileron-pos-rad</output>
            </aerosurface_scale>

            <aerosurface_scale name="Right Aileron Control">
                <input>fcs/roll-trim-sum</input>
                <range>
                    <min> -0.25 </min>
                    <max>  0.25 </max>
                </range>
                <output>fcs/right-aileron-pos-rad</output>
            </aerosurface_scale>

            <aerosurface_scale name="left aileron normalization">
                <input>fcs/left-aileron-pos-rad</input>
                <domain>
                    <min> -0.25 </min>
                    <max>  0.25 </max>
                </domain>
                <range>
                    <min> -1 </min>
                    <max>  1 </max>
                </range>
                <output>fcs/left-aileron-pos-norm</output>
            </aerosurface_scale>

            <aerosurface_scale name="right aileron normalization">
                <input>fcs/right-aileron-pos-rad</input>
                <domain>
                    <min> -0.25 </min>
                    <max>  0.25 </max>
                </domain>
                <range>
                    <min> -1 </min>
                    <max>  1 </max>
                </range>
                <output>fcs/right-aileron-pos-norm</output>
            </aerosurface_scale>

        </channel>

        <channel name="Yaw">
            <summer name="Rudder Command Sum">
                <input>fcs/rudder-cmd-norm</input>
                <input>fcs/yaw-trim-cmd-norm</input>
                <clipto>
                    <min> -0.25 </min>
                    <max>  0.25 </max>
                </clipto>
            </summer>

            <scheduled_gain name="Yaw Damper Rate">
                <input>velocities/r-aero-rad_sec</input>
                <table>
                    <independentVar>aero/qbar-psf</independentVar>
                    <tableData>
                    3.0000   0.0000   
                    11.0000   2.0000   
                </tableData>
                </table>
            </scheduled_gain>

            <scheduled_gain name="Yaw Damper Beta">
                <input>aero/beta-rad</input>
                <table>
                    <independentVar>aero/qbar-psf</independentVar>
                    <tableData>
                    3.0000   0.0000   
                    11.0000   0.0000   
                </tableData>
                </table>
            </scheduled_gain>

            <summer name="Yaw Damper Sum">
                <input>fcs/yaw-damper-beta</input>
                <input>fcs/yaw-damper-rate</input>
                <clipto>
                    <min>-0.2000</min>
                    <max>0.2000</max>
                </clipto>
            </summer>

            <scheduled_gain name="Yaw Damper Final">
                <input>fcs/yaw-damper-sum</input>
                <table>
                    <independentVar>aero/qbar-psf</independentVar>
                    <tableData>
                    2.9900   0.0000   
                    3.0000   1.0000   
                </tableData>
                </table>
            </scheduled_gain>

            <summer name="Rudder Sum">
                <input>fcs/rudder-command-sum</input>
                <input>fcs/yaw-damper-final</input>
                <clipto>
                    <min> -1 </min>
                    <max>  1 </max>
                </clipto>
            </summer>

            <aerosurface_scale name="Rudder Control">
                <input>fcs/rudder-sum</input>
                <range>
                    <min> -0.25 </min>
                    <max>  0.25 </max>
                </range>
                <output>fcs/rudder-pos-rad</output>
            </aerosurface_scale>

            <aerosurface_scale name="rudder normalization">
                <input>fcs/rudder-pos-rad</input>
                <domain>
                    <min> -0.25 </min>
                    <max>  0.25 </max>
                </domain>
                <range>
                    <min> -1 </min>
                    <max>  1 </max>
                </range>
                <output>fcs/rudder-pos-norm</output>
            </aerosurface_scale>

        </channel>

        <channel name="Flaps">
            <kinematic name="Flaps Control">
                <input>fcs/flap-cmd-norm</input>
                <traverse>
                    <setting>
                        <position>0.0</position>
                        <time>0.0000</time>
                    </setting>
                    <setting>
                        <position>35.000</position>
                        <time>30.0000</time>
                    </setting>
                </traverse>
                <output>fcs/flap-pos-deg</output>
            </kinematic>

            <aerosurface_scale name="flap normalization">
                <input>fcs/flap-pos-deg</input>
                <domain>
                    <min>  0 </min>
                    <max> 35 </max>
                </domain>
                <range>
                    <min> 0 </min>
                    <max> 1 </max>
                </range>
                <output>fcs/flap-pos-norm</output>
            </aerosurface_scale>

        </channel>

        <channel name="Landing Gear">
            <kinematic name="Gear Control">
                <input>gear/gear-cmd-norm</input>
                <traverse>
                    <setting>
                        <position> 0 </position>
                        <time>     0 </time>
                    </setting>
                    <setting>
                        <position> 1 </position>
                        <time>     15 </time>
                    </setting>
                </traverse>
                <output>gear/gear-pos-norm</output>
            </kinematic>
        </channel>

        <!-- Nose wheel steering gets input from Systems/ground_steering.xml -->
        <channel name="Steering">
            <fcs_function name="Nose Wheel Steering 0">
                <function name="fcs/steer-nose-deg[0]">
                    <description>Steering command for nose gear</description>
                    <product>
                        <property>/controls/gear/steering-cmd-norm</property>
                        <value>70.0</value>
                    </product>
                </function>
            </fcs_function>

            <actuator name="Gear Nose Actuator">
                <input>fcs/steer-nose-deg[0]</input>
                <rate_limit>70</rate_limit>
                <output>fcs/steer-pos-deg[0]</output>
            </actuator>
        </channel>

        <channel name="Speedbrake">
            <kinematic name="Speedbrake Control">
                <input>fcs/speedbrake-cmd-norm</input>
                <traverse>
                    <setting>
                        <position> 0 </position>
                        <time>     0 </time>
                    </setting>
                    <setting>
                        <position> 1 </position>
                        <time>     2 </time>
                    </setting>
                </traverse>
                <output>fcs/speedbrake-pos-norm</output>
            </kinematic>

        </channel>

    </flight_control>

    <aerodynamics>

        <!-- Lift due to ground effects to make the take off faster -->
        <function name="aero/function/kCLge">
            <description>Change_in_lift_due_to_ground_effect</description>
            <table>
                <independentVar>aero/h_b-mac-ft</independentVar>
                <tableData>
                  0.0000    1.3000  
                  0.1000    1.2500  
                  0.1500    1.1000  
                  0.2000    1.1200  
                  1.1000    1.1000
                  1.2000    1.0000
                </tableData>
            </table>
        </function>

        <axis name="LIFT">

            <function name="aero/coefficient/CLalpha">
                <description>Lift_due_to_alpha</description>
                <product>
                    <property>aero/qbar-psf</property>
                    <property>metrics/Sw-sqft</property>
                    <property>/controls/ice/wing/lift-coefficient</property>
                    <property>aero/function/kCLge</property>
                    <table>
                        <independentVar lookup="row">aero/alpha-rad</independentVar>
                        <!--                          <independentVar lookup="column">/velocities/mach</independentVar> -->
                        <tableData>
							 -0.2000   -0.8000
                              0.0000	0.3400
                              0.0400	0.5700
							  0.1740	1.0054
                              0.3000	1.3400
                              0.4500	1.2500
                              0.6000	0.8000
							</tableData>
                        <!--					   <tableData> Devel > CLalpha/Graph 4
	                         -0.5230	-0.6000
                              0.0000	 0.4000
							  0.0500	 0.5000
                              0.1000	 0.6000
							  0.5000	 1.4000
                          </tableData> -->
                        <!--	                   <tableData> Devel > CLalpha/Graph 3
	                         -0.5230	-0.8000
							 -0.4000	-0.6000
							 -0.3000	-0.4000
							 -0.2000	-0.2000
							 -0.1000	 0.0000
							 -0.0500	 0.1000
                              0.0000	 0.2000
							  0.0500	 0.3300
                              0.1000	 0.4600
							  0.2000	 0.7000
							  0.3000	 1.0000
							  0.4000	 1.3700
							  0.5000	 2.0000
                          </tableData> -->
                        <!--	                   <tableData> Devel > CLalpha/Graph 2
	                         -0.5230	-0.8000
							 -0.4000	-0.7500
							 -0.3000	-0.6700
							 -0.2000	-0.5500
							 -0.1000	-0.2600
							 -0.0600	 0.0000
                             -0.0423	 0.1500
                              0.0000	 0.4000
							  0.0523	 0.6500
                              0.1745	 1.1200
							  0.2617	 1.3000
							  0.4000	 1.3000
							  0.5000	 1.0500
							  0.5500	 0.8000
                              0.6000	 0.4000
                          </tableData> -->
                        <!--                      <tableData> Devel > CLalpha/Graph 1
	                         -0.2000   -0.6800
                              0.0000	0.2000
                              0.0400	0.6400
                              0.2300	2.7000
                              0.6000	0.5000
                          </tableData> -->
                    </table>
                </product>
            </function>

            <function name="aero/force/Lift_flap">
                <description>Delta Lift due to flaps</description>
                <product>
                    <property>aero/qbar-psf</property>
                    <property>metrics/Sw-sqft</property>
                    <property>fcs/flap-pos-deg</property>
                    <value> 0.024 </value>
                </product>
            </function>

            <function name="aero/force/Lift_speedbrake">
                <description>Delta Lift due to speedbrake</description>
                <product>
                    <property>aero/qbar-psf</property>
                    <property>metrics/Sw-sqft</property>
                    <property>fcs/speedbrake-pos-norm</property>
                    <value>-0.2</value>
                </product>
            </function>

            <function name="aero/force/Lift_elevator">
                <description>Lift due to Elevator Deflection</description>
                <product>
                    <property>aero/qbar-psf</property>
                    <property>metrics/Sw-sqft</property>
                    <property>fcs/elevator-pos-rad</property>
                    <value>0.55</value>
                </product>
            </function>

        </axis>

        <axis name="DRAG">

            <function name="aero/force/Drag_basic">
                <description>Drag at zero lift</description>
                <product>
                    <property>aero/qbar-psf</property>
                    <property>metrics/Sw-sqft</property>
                    <property>/controls/ice/wing/drag-coefficient</property>
                    <table>
                        <independentVar lookup="row">aero/alpha-rad</independentVar>
                        <tableData>
             -1.57       1.400
             -0.26    0.020
              0.00    0.015
              0.26    0.026
              1.57       1.600
            </tableData>
                    </table>
                </product>
            </function>

            <function name="aero/force/Drag_induced">
                <description>Induced drag</description>
                <product>
                    <property>aero/qbar-psf</property>
                    <property>metrics/Sw-sqft</property>
                    <property>aero/cl-squared</property>
                    <property>/controls/ice/wing/drag-coefficient</property>
                    <value>0.04</value>
                </product>
            </function>

            <function name="aero/force/Drag_mach">
                <description>Drag due to mach</description>
                <product>
                    <property>aero/qbar-psf</property>
                    <property>metrics/Sw-sqft</property>
                    <property>/controls/ice/wing/drag-coefficient</property>
                    <table>
                        <independentVar lookup="row">velocities/mach</independentVar>
                        <tableData>
                0.00      0.000
                0.79      0.001
                1.10      0.043
                1.80      0.055
            </tableData>
                    </table>
                </product>
            </function>
            <function name="aero/force/Drag_flap">
                <description>Drag due to flaps</description>
                <product>
                    <property>aero/qbar-psf</property>
                    <property>metrics/Sw-sqft</property>
                    <property>fcs/flap-pos-deg</property>
                    <value> 0.0025 </value>
                </product>
            </function>

            <function name="aero/force/Drag_gear">
                <description>Drag due to gear</description>
                <product>
                    <property>aero/qbar-psf</property>
                    <property>metrics/Sw-sqft</property>
                    <property>gear/gear-pos-norm</property>
                    <value>0.0035</value>
                </product>
            </function>

            <function name="aero/force/Drag_speedbrake">
                <description>Drag due to speedbrakes</description>
                <product>
                    <property>aero/qbar-psf</property>
                    <property>metrics/Sw-sqft</property>
                    <property>fcs/speedbrake-pos-norm</property>
                    <value>0.07</value>
                </product>
            </function>

            <function name="aero/force/Drag_beta">
                <description>Drag due to sideslip</description>
                <product>
                    <property>aero/qbar-psf</property>
                    <property>metrics/Sw-sqft</property>
                    <table>
                        <independentVar lookup="row">aero/beta-rad</independentVar>
                        <tableData>
              -1.57       1.230
              -0.26    0.050
               0.00       0.000
               0.26    0.050
               1.57       1.230
            </tableData>
                    </table>
                </product>
            </function>

            <function name="aero/force/Drag_elevator">
                <description>Drag due to Elevator Deflection</description>
                <product>
                    <property>aero/qbar-psf</property>
                    <property>metrics/Sw-sqft</property>
                    <abs>
                        <property>fcs/elevator-pos-norm</property>
                    </abs>
                    <value>0.025</value>
                </product>
            </function>

        </axis>

        <axis name="SIDE">

            <function name="aero/force/Side_beta">
                <description>Side force due to beta</description>
                <product>
                    <property>aero/qbar-psf</property>
                    <property>metrics/Sw-sqft</property>
                    <property>aero/beta-rad</property>
                    <value>-1</value>
                </product>
            </function>

        </axis>

        <axis name="ROLL">

            <function name="aero/moment/Roll_beta">
                <description>Roll moment due to beta</description>
                <product>
                    <property>aero/qbar-psf</property>
                    <property>metrics/Sw-sqft</property>
                    <property>metrics/bw-ft</property>
                    <property>aero/beta-rad</property>
                    <value>-0.08</value>
                </product>
            </function>

            <function name="aero/moment/Roll_damp">
                <description>Roll moment due to roll rate</description>
                <product>
                    <property>aero/qbar-psf</property>
                    <property>metrics/Sw-sqft</property>
                    <property>metrics/bw-ft</property>
                    <property>aero/bi2vel</property>
                    <property>velocities/p-aero-rad_sec</property>
                    <value>-0.4</value>
                </product>
            </function>

            <function name="aero/moment/Roll_yaw">
                <description>Roll moment due to yaw rate</description>
                <product>
                    <property>aero/qbar-psf</property>
                    <property>metrics/Sw-sqft</property>
                    <property>metrics/bw-ft</property>
                    <property>aero/bi2vel</property>
                    <property>velocities/r-aero-rad_sec</property>
                    <value>0.15</value>
                </product>
            </function>

            <function name="aero/moment/Roll_aileron">
                <description>Roll moment due to aileron</description>
                <product>
                    <property>aero/qbar-psf</property>
                    <property>metrics/Sw-sqft</property>
                    <property>metrics/bw-ft</property>
                    <property>fcs/left-aileron-pos-rad</property>
                    <table>
                        <independentVar lookup="row">velocities/mach</independentVar>
                        <tableData>
              0.0    0.100
              2.0    0.033
            </tableData>
                    </table>
                </product>
            </function>

            <function name="aero/moment/Roll_rudder">
                <description>Roll moment due to rudder</description>
                <product>
                    <property>aero/qbar-psf</property>
                    <property>metrics/Sw-sqft</property>
                    <property>metrics/bw-ft</property>
                    <property>fcs/rudder-pos-rad</property>
                    <value>0.01</value>
                </product>
            </function>

        </axis>

        <axis name="PITCH">

            <function name="aero/moment/Pitch_alpha">
                <description>Pitch moment due to alpha</description>
                <product>
                    <property>aero/qbar-psf</property>
                    <property>metrics/Sw-sqft</property>
                    <property>metrics/cbarw-ft</property>
                    <property>aero/alpha-rad</property>
                    <value>-1.4</value>
                </product>
            </function>

            <function name="aero/moment/Pitch_elevator">
                <description>Pitch moment due to elevator</description>
                <product>
                    <property>aero/qbar-psf</property>
                    <property>metrics/Sw-sqft</property>
                    <property>metrics/cbarw-ft</property>
                    <property>fcs/elevator-pos-rad</property>
                    <table>
                        <independentVar lookup="row">velocities/mach</independentVar>
                        <tableData>
                              0.0000	-1.3000	
                              2.0000	-0.3200	
            </tableData>
                    </table>
                </product>
            </function>

            <function name="aero/moment/Pitch_damp">
                <description>Pitch moment due to pitch rate</description>
                <product>
                    <property>aero/qbar-psf</property>
                    <property>metrics/Sw-sqft</property>
                    <property>metrics/cbarw-ft</property>
                    <property>aero/ci2vel</property>
                    <property>velocities/q-aero-rad_sec</property>
                    <value>-12</value>
                </product>
            </function>

            <function name="aero/moment/Pitch_alphadot">
                <description>Pitch moment due to alpha rate</description>
                <product>
                    <property>aero/qbar-psf</property>
                    <property>metrics/Sw-sqft</property>
                    <property>metrics/cbarw-ft</property>
                    <property>aero/ci2vel</property>
                    <property>aero/alphadot-rad_sec</property>
                    <value>-8</value>
                </product>
            </function>

        </axis>

        <axis name="YAW">

            <function name="aero/moment/Yaw_beta">
                <description>Yaw moment due to beta</description>
                <product>
                    <property>aero/qbar-psf</property>
                    <property>metrics/Sw-sqft</property>
                    <property>metrics/bw-ft</property>
                    <property>aero/beta-rad</property>
                    <value>0.12</value>
                </product>
            </function>

            <function name="aero/moment/Yaw_damp">
                <description>Yaw moment due to yaw rate</description>
                <product>
                    <property>aero/qbar-psf</property>
                    <property>metrics/Sw-sqft</property>
                    <property>metrics/bw-ft</property>
                    <property>aero/bi2vel</property>
                    <property>velocities/r-aero-rad_sec</property>
                    <value>-0.15</value>
                </product>
            </function>

            <function name="aero/moment/Yaw_rudder">
                <description>Yaw moment due to rudder</description>
                <product>
                    <property>aero/qbar-psf</property>
                    <property>metrics/Sw-sqft</property>
                    <property>metrics/bw-ft</property>
                    <property>fcs/rudder-pos-rad</property>
                    <value>-0.1</value>
                </product>
            </function>

            <function name="aero/moment/Yaw_aileron">
                <description>Adverse yaw</description>
                <product>
                    <property>aero/qbar-psf</property>
                    <property>metrics/Sw-sqft</property>
                    <property>metrics/bw-ft</property>
                    <property>fcs/left-aileron-pos-rad</property>
                    <value>0</value>
                </product>
            </function>

        </axis>

    </aerodynamics>

    <external_reactions>
        <force name="pushback" frame="BODY">
            <location unit="IN">
                <x>-612.06718</x>

                <z>-100</z>
            </location>
            <direction>
                <x>1</x>


            </direction>
        </force>
        <force name="tractor" frame="BODY">
            <location unit="IN">
                <x>-612.06718</x>

                <z>-100</z>
            </location>
            <direction>
                <x>1</x>
                
                
            </direction>
        </force>
    </external_reactions>

</fdm_config>