FlightGear Newsletter October 2013: Difference between revisions

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Gary "Buckaroo" Neely have released a new version of his [http://www.buckarooshangar.com/flightgear/yasimtut.html Guide To YASim].  [[YASim]] is one of the two flight dynamic models (FDMs) that comes included with FlightGear, the other one being [[JSBSim]].  Depending on the available data either of the models can be used.  In general it is said that if aerodynamic test or simulation data is available JSBSim is the better choice and if not YASim is a better choice.
Gary "Buckaroo" Neely have released a new version of his [http://www.buckarooshangar.com/flightgear/yasimtut.html Guide To YASim].  [[YASim]] is one of the two flight dynamic models (FDMs) that comes included with FlightGear, the other one being [[JSBSim]].  Depending on the available data either of the models can be used.  In general it is said that if aerodynamic test or simulation data is available JSBSim is the better choice and if not YASim is a better choice.


YASim is often used instead of JSBSim as the latter has a steeper learning curve, mostly because of the level of aerodynamics and flight dynamics knowledge that is needed and because enough data rarely is available to make a better than decent FDM.  However YASim is not all that well documented and can more often than sometimes be a bit puzzling.  Over the years Gary has collected notes on what worked and what didn't as well and has looked through the YASim code (or so it seems) and have from that made a guide that is available at his hangar (see link above).
YASim is often used instead of JSBSim as the latter has a steeper learning curve, mostly because of the level of aerodynamics and flight dynamics knowledge that is needed and because enough data rarely is available to make a better than decent FDM.  However YASim is not all that well documented and can more often than sometimes be a bit puzzling.  Over the years Gary has collected notes on what worked and what didn't as well as have had a look at the YASim code (or so it seems) and have from that made a guide that is available at his hangar (see link above).


If you are new making aircraft with an YASim FDM or want to tweak an existing YASim aircraft to have its performance to better match published data or a flight manual, reading or at least glancing through his guide is highly recommended.
If you are new making aircraft with an YASim FDM or want to tweak an existing YASim aircraft to have its performance to better match published data or a flight manual, reading or at least glancing through his guide is highly recommended.

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