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Flight Dynamics Model: Difference between revisions
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A '''Flight Dynamics Model''' (FDM) is a set of math equations used to calculate the physical forces acting on a simulated [[aircraft]], such as thrust, lift, and drag. | A '''Flight Dynamics Model''' (FDM) is a set of math equations used to calculate the physical forces acting on a simulated [[aircraft]], such as thrust, lift, and drag. [[FlightGear]] supports several different types of flight dynamics models. Every aircraft simulated by FlightGear must use one of these models. | ||
* '''[[LaRCsim]]''' was originally developed by NASA, and was the first FlightGear FDM, now replaced by JSBSim, UIUC and YASim. | * '''[[LaRCsim]]''' was originally developed by NASA, and was the first FlightGear FDM, now replaced by JSBSim, UIUC and YASim. | ||
* '''[[JSBSim]]''' was originally developed specifically for FlightGear, and has been the default FlightGear flight dynamics model since 2000. In addition to airplanes JSBSim also supports rockets and [[Aerostat|lighter than air aircraft]]. | * '''[[JSBSim]]''' was originally developed specifically for FlightGear, and has been the default FlightGear flight dynamics model since 2000. In addition to airplanes JSBSim also supports rockets and [[Aerostat|lighter than air aircraft]]. | ||
* '''[[UIUC]]''' was developed by the UIUC Applied Aerodynamics Group at University of Illinois, based on LaRCsim, and includes additional features, such as the ability to simulate aircraft icing. | * '''[[UIUC]]''' was developed by the UIUC Applied Aerodynamics Group at University of Illinois, based on LaRCsim, and includes additional features, such as the ability to simulate aircraft icing. | ||
* '''[[YASim]]''' is yet another FDM using different calculation methods. | * '''[[YASim]]''' is yet another FDM using different calculation methods. YASim supports airplanes and helicopters. It was introduced in FlightGear version 0.7.9 in 2002. | ||
* FlightGear can also be set up to render using inputs from an external FDM source, such as from Matlab. | * FlightGear can also be set up to render using inputs from an external FDM source, such as from Matlab. | ||
* Other custom FDM have been written for specific aircraft types, such as for hot air balloons. | * Other custom FDM have been written for specific aircraft types, such as for hot air balloons. | ||