<!--
based on standard my wingtip contrail:    rjh@zaretto.com
 -->
<PropertyList> 
 <particlesystem>
   <name>wingroot-smoke</name>
   <texture>vapour.png</texture>
 
   <emissive type="bool">false</emissive>
   <lighting type="bool">false</lighting>
 
   <condition>
      <property>sim/model/f-14b/fx/smoke</property>
   </condition>
 
   <attach>world</attach>
 
   <placer>
     <type>point</type> 
   </placer>
 
   <shooter>
     <theta-min-deg>93</theta-min-deg>
      <theta-max-deg>94</theta-max-deg>
      <phi-min-deg>0</phi-min-deg>
      <phi-max-deg>0</phi-max-deg>
  <speed-mps>
        <value>27</value>
        <spread>12</spread>
      </speed-mps>
<rotation-speed>
        <x-min-deg-sec>0</x-min-deg-sec>
        <y-min-deg-sec>0</y-min-deg-sec>
        <z-min-deg-sec>-180</z-min-deg-sec>
        <x-max-deg-sec>0</x-max-deg-sec>
        <y-max-deg-sec>0</y-max-deg-sec>
        <z-max-deg-sec>180</z-max-deg-sec>
      </rotation-speed>
   </shooter>
 
   <counter>
     <particles-per-sec>
       <value>1000</value>
       <spread>1</spread>
     </particles-per-sec>
   </counter>
 
   <align>billboard</align>
 
   <particle>
     <start>
       <color>
         <red><value>   0.9 </value></red>
         <green><value> 0.9 </value></green>
         <blue><value>  0.9 </value></blue>
         <alpha><value> 0.6 </value></alpha>
       </color>
       <size>
         <value>0.5</value>
       </size>
     </start>
 
     <end>
       <color>
         <red><value>   0.88 </value></red>
         <green><value> 0.88 </value></green>
         <blue><value>  0.88 </value></blue>
         <alpha><value> 0.00000001</value></alpha>
       </color>
       <size>
         <value>1</value>
       </size>
     </end>
 
     <life-sec>
       <value>0.05</value>
     </life-sec>
 
      <mass-kg>1.9</mass-kg>
      <radius-m>1</radius-m>
   </particle>
 
   <program>
     <fluid>               air  </fluid>
     <gravity type="bool"> true </gravity>
     <wind typ="bool">     true </wind>
   </program>
 
 </particlesystem>
 
 </PropertyList>
