On Fri, 3 May 2013, Alan Teeder wrote: > It exposes a serious problem in JSBSim which affects all Datcom users.
Isn't it rather a missing feature than a fault in JSBSim? The JSBSim documentation and axis names are fairly clear on that the moments are specified around the yaw, pitch and roll axes (but the origin is at AeroRP rather than at the body frame origin/CoG so additional corrections according to the parallel axis theorem are added based on the distance from AeroRP to the actual CoG). If the DATCOM -> JSBSim input translation is faulty (I have no professional grounding in aerodynamics and I cannot tell) the best place to get it addressed might be at the mailing list/group for Bill Galbraith's DATCOM+ program (I think it is the most commonly used way to generate a JSBSim configuration from DATCOM): http://tech.groups.yahoo.com/group/digital_datcom/ Cheers, Anders -- --------------------------------------------------------------------------- Anders Gidenstam WWW: http://gitorious.org/anders-hangar http://www.gidenstam.org/FlightGear/ ------------------------------------------------------------------------------ Learn Graph Databases - Download FREE O'Reilly Book "Graph Databases" is the definitive new guide to graph databases and their applications. This 200-page book is written by three acclaimed leaders in the field. The early access version is available now. Download your free book today! http://p.sf.net/sfu/neotech_d2d_may _______________________________________________ Flightgear-devel mailing list Flightgear-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/flightgear-devel
