On Monday 01 March 2004 13:28, Jon Berndt wrote: > > I'm a bit concerned about the physics model of flightgear. Are there > > certain > > physical limitations built into the sim, that makes paraglider physics > > impossible to model? I'm thinking particularly about the pendulum effect. > > Of course, everything is possible when you have access to the source > > code, but you know what I mean... > > > > Or is this simply a matter of improving David's paraglider model? > > There are several physics models for FlightGear. The main ones, JSBSim and > YASim are, I believe, both capable of handling a paraglider. However, it is > also possible that two of the other FDMs, LaRCSim and UIUC-Larcsim could be > useful. > > Andy Ross (author of YASim) would be able to tell you about modeling a > paraglider with YASim (which uses aircraft geometry and performance figures > to model flight physics, to give a very broad description of that > approach). The JSBSim model, to my knowledge, has not been used much, and > is a rough, first-cut, model. I have a hunch that some tweaking will give > you a better match for what you expect, and the first thing I'd change is > the location of the CG and the aero reference point. > > If neither of the two (YASim and JSBSim) are appropriate for your > expectations, you can code a special flight model in C within LaRCSim or > perhaps set up a special model in UIUC-LaRCSim, although I am not very > familiar with that. > > The point is, (and I say this from the point of view of someone who works > with flight simulators every day) with the total set of four FDMs (flight > dynamics model) you will have the ability to model a paraglider. But it > will require some work and study on your part.
Thanks, I'll begin reading. I didn't expect this to be easy... =) But you've at least convinced me it's possible. Is this list the right forum for further discussion of the project, or should I go to the flightmodel or users list? best regards, -- Gunnstein Lye Systems engineer [EMAIL PROTECTED] | eZ systems | ez.no _______________________________________________ Flightgear-devel mailing list [EMAIL PROTECTED] http://mail.flightgear.org/mailman/listinfo/flightgear-devel
