JSBSim Propulsion

JSBSim provides a framework for aerodynamics. This page will attempt to explain how to create a propulsion system for the JSBSim framework. Propulsion systems contain engine, thrusters and fuel tanks

Propulsion

Propulsion entity is the container for engine, thrusters and fuel tanks. Engines and thrusters are commonly kept in separate files in the Engines/ directory.

Configuration File Format

   <propulsion>
       <engine file="{string}">
         ... see FGEngine, FGThruster, and class for engine type ...
       </engine>
       ... more engines ...
       <tank type="{FUEL | OXIDIZER}"> 
         ... see FGTank ...
       </tank>
       ... more tanks ...
       <dump-rate unit="{LBS/MIN | KG/MIN}"> {number} </dump-rate>
   </propulsion>

Example Format

   <propulsion>
       <engine file="eng_io320">
           <location unit="IN">
               <x> -19.7 </x>
               <y> 0 </y>
               <z> 26.6 </z>
           </location>
           <orient unit="DEG">
               <roll> 0.0 </roll>
               <pitch> 0 </pitch>
               <yaw> 0 </yaw>
           </orient>
           <feed>0</feed>
           <feed>1</feed>
           <thruster file="prop_75in2f">
               <location unit="IN">
                   <x> -37.7 </x>
                   <y> 0 </y>
                   <z> 26.6 </z>
               </location>
               <orient unit="DEG">
                   <roll> 0.0 </roll>
                   <pitch> 0.0 </pitch>
                   <yaw> 0.0 </yaw>
               </orient>
               <sense> 1 </sense>
               <p_factor> 5 </p_factor>
           </thruster>
       </engine>
       <tank type="FUEL">    
           <location unit="IN">
               <x> 56 </x>
               <y> -112 </y>
               <z> 59.4 </z>
           </location>
           <capacity unit="LBS"> 185 </capacity>
           <contents unit="LBS"> 100 </contents>
       </tank>
       <tank type="FUEL">    
           <location unit="IN">
               <x> 56 </x>
               <y> 112 </y>
               <z> 59.4 </z>
           </location>
           <capacity unit="LBS"> 185 </capacity>
           <contents unit="LBS"> 100 </contents>
       </tank>
   </propulsion>