<commit_before><?xml version="1.0"?>
<?xml-stylesheet type="text/xsl" href="http://jsbsim.sourceforge.net/JSBSim.xsl"?>
<fdm_config name="Fokker Dr.1" version="2.0" release="ALPHA"
   xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
   xsi:noNamespaceSchemaLocation="http://jsbsim.sourceforge.net/JSBSim.xsd">

 <fileheader>
  <author> <NAME>, <NAME>, Aeromatic v 0.9 </author>
  <filecreationdate> 2008-07-26 </filecreationdate>
  <version>$Revison: $</version>
  <description> Models a Fokker Dr.1. </description>
 </fileheader>

<!--
  File:     Fokker Dr.1.xml
  Inputs:
    name:          Fokker Dr.1
    type:          WW1 type
    max weight:    1292.13 lb
    wing span:     23.6232 ft
    length:        18.93137 ft
    wing area:     201.3055 sq-ft
    gear type:     taildragger
    retractable?:  no
    # engines:     1
    engine type:   piston
    engine layout: forward fuselage
    yaw damper?    no

  Outputs:
    wing loading:  6.42 lb/sq-ft
    CL-alpha:      5 per radian
    CL-0:          0.25
    CL-max:        1.4
    CD-0:          0.0323
    K:             0.04

-->

 <metrics>
   <wingarea  unit="FT2">  201.31 </wingarea>
   <wingspan  unit="FT" >   23.62 </wingspan>
   <wing_incidence>          2.00 </wing_incidence>
   <chord     unit="FT" >    8.52 </chord>
   <htailarea unit="FT2">   32.21 </htailarea>
   <htailarm  unit="FT" >    9.84 </htailarm>
   <vtailarea unit="FT2">   20.13 </vtailarea>
   <vtailarm  unit="FT" >    9.47 </vtailarm>
   <location name="AERORP" unit="IN">
     <x>   0.00</x>
     <y>   0.00 </y>
     <z>   0.00 </z>
   </location>
   <location name="EYEPOINT" unit="IN">
     <x>  29.53 </x>
     <y> -18.00 </y>
     <z>  45.00 </z>
   </location>
   <location name="VRP" unit="IN">
     <x>0</x>
     <y>0</y>
     <z>0</z>
   </location>
 </metrics>

 <mass_balance>
   <ixx unit="SLUG*FT2">    368.55 </ixx>
   <iyy unit="SLUG*FT2">    522.24 </iyy>
   <izz unit="SLUG*FT2">    731.37 </izz>
   <emptywt unit="LBS" >       895 </emptywt>
   <location name="CG" unit="IN">
     <x>   0.00 </x>
     <y>   0.00 </y>
     <z>  -5.68 </z>
   </location>
 </mass_balance>

 <ground_reactions>

  <contact type="BOGEY" name="LEFT_MAIN">
   <location unit="IN">
     <x>  -8.66 </x>
     <y> -30.32 </y>
     <z> -76.77 </z>
   </location>
   <static_friction>  0.80 </static_friction>
   <dynamic_friction> 0.50 </dynamic_friction>
   <rolling_friction> 0.02 </rolling_friction>
   <spring_coeff unit="LBS/FT">      1000 </spring_coeff>
   <damping_coeff unit="LBS/FT/SEC">  500 </damping_coeff>
   <max_steer unit="DEG">0</max_steer>
   <brake_group>NONE</brake_group>
   <retractable>0</retractable>
  </contact>

  <contact type="BOGEY" name="RIGHT_MAIN">
   <location unit="IN">
     <x>  -8.66 </x>
     <y>  30.32 </y>
     <z> -76.77 </z>
   </location>
   <static_friction>  0.80 </static_friction>
   <dynamic_friction> 0.50 </dynamic_friction>
   <rolling_friction> 0.02 </rolling_friction>
   <spring_coeff unit="LBS/FT">       1000 </spring_coeff>
   <damping_coeff unit="LBS/FT/SEC">   500 </damping_coeff>
   <max_steer unit="DEG">0</max_steer>
   <brake_group>NONE</brake_group>
   <retractable>0</retractable>
  </contact>

  <contact type="BOGEY" name="TAIL_SKID">
   <location unit="IN">
     <x> 162.20 </x>
     <y>   0.00 </y>
     <z> -26.77 </z>
   </location>
   <static_friction>  0.80 </static_friction>
   <dynamic_friction> 0.50 </dynamic_friction>
   <rolling_friction> 0.02 </rolling_friction>
   <spring_coeff unit="LBS/FT">       200 </spring_coeff>
   <damping_coeff unit="LBS/FT/SEC">  100 </damping_coeff>
   <max_steer unit="DEG"> 0.00 </max_steer>
   <brake_group>NONE</brake_group>
   <retractable>0</retractable>
  </contact>

  <contact type="STRUCTURE" name="TAIL">
   <location unit="IN">
     <x> 173.23 </x>
     <y>   0.00 </y>
     <z>  9.45 </z>
   </location>
   <static_friction>  0.80 </static_friction>
   <dynamic_friction> 0.50 </dynamic_friction>
   <rolling_friction> 0.02 </rolling_friction>
   <spring_coeff unit="LBS/FT">       200 </spring_coeff>
   <damping_coeff unit="LBS/FT/SEC">  100 </damping_coeff>
   <max_steer unit="DEG"> 0.00 </max_steer>
   <brake_group>NONE</brake_group>
   <retractable>0</retractable>
  </contact>

  <contact type="STRUCTURE" name="LEFT_UPPER_WING">
    <location unit="IN">
     <x>    0.0 </x>
     <y> -133.9 </y>
     <z>  35.8 </z>
    </location>
    <static_friction>  0.80 </static_friction>
    <dynamic_friction> 0.50 </dynamic_friction>
    <spring_coeff unit="LBS/FT">        300 </spring_coeff>
    <damping_coeff unit="LBS/FT/SEC">   150 </damping_coeff>
  </contact>

  <contact type="STRUCTURE" name="RIGHT_UPPER_WING">
    <location unit="IN">
     <x>    0.0 </x>
     <y>  133.9 </y>
     <z>  35.8 </z>
    </location>
    <static_friction>  0.80 </static_friction>
    <dynamic_friction> 0.50 </dynamic_friction>
    <spring_coeff unit="LBS/FT">        300 </spring_coeff>
    <damping_coeff unit="LBS/FT/SEC">   150 </damping_coeff>
  </contact>

  <contact type="STRUCTURE" name="LEFT_LOWER_WING">
    <location unit="IN">
     <x>   -8.7 </x>
     <y> -112.2 </y>
     <z>  33.5 </z>
    </location>
    <static_friction>  0.80 </static_friction>
    <dynamic_friction> 0.50 </dynamic_friction>
    <spring_coeff unit="LBS/FT">        300 </spring_coeff>
    <damping_coeff unit="LBS/FT/SEC">   150 </damping_coeff>
  </contact>

  <contact type="STRUCTURE" name="RIGHT_LOWER_WING">
    <location unit="IN">
     <x>   -8.7 </x>
     <y>  112.2 </y>
     <z>  33.5 </z>
    </location>
    <static_friction>  0.80 </static_friction>
    <dynamic_friction> 0.50 </dynamic_friction>
    <spring_coeff unit="LBS/FT">        300 </spring_coeff>
    <damping_coeff unit="LBS/FT/SEC">   150 </damping_coeff>
  </contact>

 </ground_reactions>

 <external_reactions>
  <force name="pushback" frame="BODY">
   <location unit="IN">
     <x> 173.23 </x>
     <y>   0.00 </y>
     <z>  -9.45 </z>
   </location>
   <direction>
    <x>1</x>
    <y>0</y>
    <z>0</z><commit_msg>Add the top of the rudder as a structure point<commit_after><?xml version="1.0"?>
<?xml-stylesheet type="text/xsl" href="http://jsbsim.sourceforge.net/JSBSim.xsl"?>
<fdm_config name="Fokker Dr.1" version="2.0" release="ALPHA"
   xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
   xsi:noNamespaceSchemaLocation="http://jsbsim.sourceforge.net/JSBSim.xsd">

 <fileheader>
  <author> <NAME>, <NAME>, Aeromatic v 0.9 </author>
  <filecreationdate> 2008-07-26 </filecreationdate>
  <version>$Revison: $</version>
  <description> Models a Fokker Dr.1. </description>
 </fileheader>

<!--
  File:     Fokker Dr.1.xml
  Inputs:
    name:          Fokker Dr.1
    type:          WW1 type
    max weight:    1292.13 lb
    wing span:     23.6232 ft
    length:        18.93137 ft
    wing area:     201.3055 sq-ft
    gear type:     taildragger
    retractable?:  no
    # engines:     1
    engine type:   piston
    engine layout: forward fuselage
    yaw damper?    no

  Outputs:
    wing loading:  6.42 lb/sq-ft
    CL-alpha:      5 per radian
    CL-0:          0.25
    CL-max:        1.4
    CD-0:          0.0323
    K:             0.04

-->

 <metrics>
   <wingarea  unit="FT2">  201.31 </wingarea>
   <wingspan  unit="FT" >   23.62 </wingspan>
   <wing_incidence>          2.00 </wing_incidence>
   <chord     unit="FT" >    8.52 </chord>
   <htailarea unit="FT2">   32.21 </htailarea>
   <htailarm  unit="FT" >    9.84 </htailarm>
   <vtailarea unit="FT2">   20.13 </vtailarea>
   <vtailarm  unit="FT" >    9.47 </vtailarm>
   <location name="AERORP" unit="IN">
     <x>   0.00</x>
     <y>   0.00 </y>
     <z>   0.00 </z>
   </location>
   <location name="EYEPOINT" unit="IN">
     <x>  29.53 </x>
     <y> -18.00 </y>
     <z>  45.00 </z>
   </location>
   <location name="VRP" unit="IN">
     <x>0</x>
     <y>0</y>
     <z>0</z>
   </location>
 </metrics>

 <mass_balance>
   <ixx unit="SLUG*FT2">    368.55 </ixx>
   <iyy unit="SLUG*FT2">    522.24 </iyy>
   <izz unit="SLUG*FT2">    731.37 </izz>
   <emptywt unit="LBS" >       895 </emptywt>
   <location name="CG" unit="IN">
     <x>   0.00 </x>
     <y>   0.00 </y>
     <z>  -5.68 </z>
   </location>
 </mass_balance>

 <ground_reactions>

  <contact type="BOGEY" name="LEFT_MAIN">
   <location unit="IN">
     <x>  -8.66 </x>
     <y> -30.32 </y>
     <z> -76.77 </z>
   </location>
   <static_friction>  0.80 </static_friction>
   <dynamic_friction> 0.50 </dynamic_friction>
   <rolling_friction> 0.02 </rolling_friction>
   <spring_coeff unit="LBS/FT">      1000 </spring_coeff>
   <damping_coeff unit="LBS/FT/SEC">  500 </damping_coeff>
   <max_steer unit="DEG">0</max_steer>
   <brake_group>NONE</brake_group>
   <retractable>0</retractable>
  </contact>

  <contact type="BOGEY" name="RIGHT_MAIN">
   <location unit="IN">
     <x>  -8.66 </x>
     <y>  30.32 </y>
     <z> -76.77 </z>
   </location>
   <static_friction>  0.80 </static_friction>
   <dynamic_friction> 0.50 </dynamic_friction>
   <rolling_friction> 0.02 </rolling_friction>
   <spring_coeff unit="LBS/FT">       1000 </spring_coeff>
   <damping_coeff unit="LBS/FT/SEC">   500 </damping_coeff>
   <max_steer unit="DEG">0</max_steer>
   <brake_group>NONE</brake_group>
   <retractable>0</retractable>
  </contact>

  <contact type="BOGEY" name="TAIL_SKID">
   <location unit="IN">
     <x> 162.20 </x>
     <y>   0.00 </y>
     <z> -26.77 </z>
   </location>
   <static_friction>  0.80 </static_friction>
   <dynamic_friction> 0.50 </dynamic_friction>
   <rolling_friction> 0.02 </rolling_friction>
   <spring_coeff unit="LBS/FT">       200 </spring_coeff>
   <damping_coeff unit="LBS/FT/SEC">  100 </damping_coeff>
   <max_steer unit="DEG"> 0.00 </max_steer>
   <brake_group>NONE</brake_group>
   <retractable>0</retractable>
  </contact>

  <contact type="STRUCTURE" name="TAIL">
   <location unit="IN">
     <x> 173.23 </x>
     <y>   0.00 </y>
     <z>  -9.45 </z>
   </location>
   <static_friction>  0.80 </static_friction>
   <dynamic_friction> 0.50 </dynamic_friction>
   <rolling_friction> 0.02 </rolling_friction>
   <spring_coeff unit="LBS/FT">       200 </spring_coeff>
   <damping_coeff unit="LBS/FT/SEC">  100 </damping_coeff>
   <max_steer unit="DEG"> 0.00 </max_steer>
   <brake_group>NONE</brake_group>
   <retractable>0</retractable>
  </contact>

  <contact type="STRUCTURE" name="RUDDER_TOP">
   <location unit="IN">
     <x> 173.23 </x>
     <y>   0.00 </y>
     <z>  16.93 </z>
   </location>
   <static_friction>  0.80 </static_friction>
   <dynamic_friction> 0.50 </dynamic_friction>
   <rolling_friction> 0.02 </rolling_friction>
   <spring_coeff unit="LBS/FT">       200 </spring_coeff>
   <damping_coeff unit="LBS/FT/SEC">  100 </damping_coeff>
   <max_steer unit="DEG"> 0.00 </max_steer>
   <brake_group>NONE</brake_group>
   <retractable>0</retractable>
  </contact>

  <contact type="STRUCTURE" name="LEFT_UPPER_WING">
    <location unit="IN">
     <x>    0.0 </x>
     <y> -133.9 </y>
     <z>   35.8 </z>
    </location>
    <static_friction>  0.80 </static_friction>
    <dynamic_friction> 0.50 </dynamic_friction>
    <spring_coeff unit="LBS/FT">        300 </spring_coeff>
    <damping_coeff unit="LBS/FT/SEC">   150 </damping_coeff>
  </contact>

  <contact type="STRUCTURE" name="RIGHT_UPPER_WING">
    <location unit="IN">
     <x>    0.0 </x>
     <y>  133.9 </y>
     <z>   35.8 </z>
    </location>
    <static_friction>  0.80 </static_friction>
    <dynamic_friction> 0.50 </dynamic_friction>
    <spring_coeff unit="LBS/FT">        300 </spring_coeff>
    <damping_coeff unit="LBS/FT/SEC">   150 </damping_coeff>
  </contact>

  <contact type="STRUCTURE" name="LEFT_LOWER_WING">
    <location unit="IN">
     <x>   -8.7 </x>
     <y> -112.2 </y>
     <z>  -33.5 </z>
    </location>
    <static_friction>  0.80 </static_friction>
    <dynamic_friction> 0.50 </dynamic_friction>
    <spring_coeff unit="LBS/FT">        300 </spring_coeff>
    <damping_coeff unit="LBS/FT/SEC">   150 </damping_coeff>
  </contact>

  <contact type="STRUCTURE" name="RIGHT_LOWER_WING">
    <location unit="IN">
     <x>   -8.7 </x>
     <y>  112.2 </y>
     <z>  -33.5 </z>
    </location>
    <static_friction>  0.80 </static_friction>
    <dynamic_friction> 0.50 </dynamic_friction>
    <spring_coeff unit="LBS/FT">        300 </spring_coeff>
    <damping_coeff unit="LBS/FT/SEC">   150 </damping_coeff>
  </contact>

 </ground_reactions>

 <external_reactions>
  <force name="pushback" frame="BODY">
   <location unit="IN">
     <x> 173.23 </x>
     <y>   0.00 </y>
     <z>  -9.45 </z>
   </location>
   <direction>
    <x>1</x>
    <y>0</y>
    <z>0</z>
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