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Author Topic: Is there an FDM database anywhere?  (Read 4188 times)

zzz

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Is there an FDM database anywhere?
« on: April 17, 2016, 10:45:36 am »

I'm doing a bunch of jet fighters and was wondering if there is a unified database of FDM files. I can google around and get FDM files for individual planes, but I'm not sure of their quality and I'd like the results to be standardised. Is there a place to download FDMs for popular jets like the F15, Su27, etc?
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Uriah

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Re: Is there an FDM database anywhere?
« Reply #1 on: April 17, 2016, 12:19:31 pm »

The only such collection of flight models are the examples included in the JSBSim CVS tarball: http://jsbsim.cvs.sourceforge.net/viewvc/jsbsim/?view=tar

There are about 60 FDMs, including the F-15, but none for the Su-27 exists. In terms of "quality", a realistic FDM takes considerable effort and experience to build, and those in the CVS repository are probably of varying levels of accuracy, which largely depends on the amount of publicly available information, such as lift/drag coefficients. A simple model can be derived from an aircraft of similar flight characteristics by making a new engine, and configuring the metrics. FlightGear has the largest selection of FDMs, including the Su-27, however many of these are built for YASim, and those built for JSBSim are of wildly varying levels of accuracy.

Regards,
Uriah
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HiFlyer

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Re: Is there an FDM database anywhere?
« Reply #2 on: April 17, 2016, 05:39:38 pm »

And this thingy still works, for a start.........  http://jsbsim.sourceforge.net/aeromatic2.html
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Revolver

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Re: Is there an FDM database anywhere?
« Reply #3 on: May 12, 2016, 01:19:16 pm »

Hello,

can anyone tell me, how do I get JSBSim Commander or JSBSim Flight Dynamics Model
to run? I have the JSBSim Flight Dynamics Model and JSBSim Commander downloaded,
but it just will not start. In JSBSim Flight Dynamics Model File -exe looks a second and nothing happens, and Commander can not open xml-files .... wtf?  =|

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