> Yeah, why not JSBSim? Would be a fine alternative :-) > > Well, I noticed today that putting all ballast at one spot helps a lot. > Means: all ballast used has the same coordinates. I did try this on the > ec135 and ec130 and it seems to work good. But it don't work on the > bo105 due to the named things by m. I guess. > And it doesn't prevent from sliding after getting the rotors turning > which is quite unrealistic. > HHS
It's a tough problem, it's always been a tough (and annoying) problem in flight simulation, with the sometimes competing needs of code efficiency, speed, readability, and generality. There is an AIAA paper that describes how one of the NASA simulations got around it, which seemed pretty clever to me. In JSBSim we got around it differently by filtering the gear forces (and other parameters) at the frame rate, which significantly reduces the jitter, and by also attenuating gear forces (correctly) at low velocity. This requires some tuning on a per-aircraft basis, but when given the proper attention, the results are very, very solid. It's not the only solution - or even the best one - but it works pretty well. Jon ------------------------------------------------------------------------------ Create and Deploy Rich Internet Apps outside the browser with Adobe(R)AIR(TM) software. With Adobe AIR, Ajax developers can use existing skills and code to build responsive, highly engaging applications that combine the power of local resources and data with the reach of the web. Download the Adobe AIR SDK and Ajax docs to start building applications today-http://p.sf.net/sfu/adobe-com _______________________________________________ Flightgear-devel mailing list Flightgear-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/flightgear-devel
