Flight Dynamics Model: Difference between revisions

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'''Flight Dynamics Models''' are how the flight for an [[aircraft]] is simulated in the program. [[FlightGear]] uses a variety of internally written and imported flight model projects. Any aircraft must be programmed to use one of these models. Currently FlightGear is the only graphical flight simulator all the FDM are used for, and UIUC and YASim were developed specifically for FlightGear.
A '''Flight Dynamics Model''' (FDM) is a collection of mathematical equations used by flight simulator software to calculate the effects of the physical forces acting on a simulated [[aircraft]], such as thrust, lift, and drag. [[FlightGear]] supports several different types of flight dynamics models. Every simulated aircraft must use one of these models.  


The early version used a FDM based on [[LaRCsim]] by NASA, which was replaced with more flexible FDMs.
* [[LaRCsim]] was the first FDM suppored by FlightGear, originally developed by NASA, it became the basis for the UIUC FDM.  LaRCsim has been replaced by other more flexible FDMs which are now supported by FlightGear.
* [[JSBSim]] was developed specifically for FlightGear, and has been the default FlightGear flight dynamics model since 2000.
* [[UIUC]] was developed specifically for FlightGear by the UIUC Applied Aerodynamics Group at University of Illinois at Urbana-Champaign.  The UIUC FDM was originally based on the open-source LaRCsim FDM, and includes added ability to simulate aircraft icing.
* [[YASim]] is yet another FDM using different calculation methods.  YASim 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.
* Other custom FDM have been written for specific aircraft types, such as for [[Aerostat|lighter than air aircraft]].


* [[JSBSim]] - the default flight dynamics model software since 2000.
Currentlt, FlightGear is the only graphical flight simulator to support all of these flight dynamics models.
* [[YASim]] - another FDM using different calculation methods. Introduced starting in 0.7.9 in 2002.
* [[UIUC]] - another included FDM, developed by the UIUC Applied Aerodynamics Group at University of Illinois at Urbana-Champaign, also made use of LaRCsim.
* FlightGear can also be set up to render using inputs from an external FDM source, such as from Matlab.
* Other custom FDM for a specific aircraft type have been written, such as for [[Aerostat|lighter than air aircraft]].


For developers, see also [[FDM engine feature standardization]]
For developers, see also [[FDM engine feature standardization]]


{{FDM}}
{{FDM}}

Revision as of 16:14, 15 January 2010

A Flight Dynamics Model (FDM) is a collection of mathematical equations used by flight simulator software to calculate the effects of the physical forces acting on a simulated aircraft, such as thrust, lift, and drag. FlightGear supports several different types of flight dynamics models. Every simulated aircraft must use one of these models.

  • LaRCsim was the first FDM suppored by FlightGear, originally developed by NASA, it became the basis for the UIUC FDM. LaRCsim has been replaced by other more flexible FDMs which are now supported by FlightGear.
  • JSBSim was developed specifically for FlightGear, and has been the default FlightGear flight dynamics model since 2000.
  • UIUC was developed specifically for FlightGear by the UIUC Applied Aerodynamics Group at University of Illinois at Urbana-Champaign. The UIUC FDM was originally based on the open-source LaRCsim FDM, and includes added ability to simulate aircraft icing.
  • YASim is yet another FDM using different calculation methods. YASim 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.
  • Other custom FDM have been written for specific aircraft types, such as for lighter than air aircraft.

Currentlt, FlightGear is the only graphical flight simulator to support all of these flight dynamics models.

For developers, see also FDM engine feature standardization

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