As in this image: http://dodlithr.blogspot.com/2011/09/airplanes-stability-axis.html
Beta is positive when the wind hits the right side of the vehicle. This is the only standard convention I have ever seen. I would recommend strongly against artificially changing the sign of this parameter as output from JSBSim. Jon > -----Original Message----- > From: jean pellotier [mailto:jean.pellot...@wanadoo.fr] > Sent: Monday, July 29, 2013 6:27 AM > To: FlightGear developers discussions > Subject: [Flightgear-devel] making sign of side-slip consistent between > fdm (bug 901) > > hi there, > > following this bug report: > > http://code.google.com/p/flightgear-bugs/issues/detail?id=901 > > it appears that orientation/side-slip-deg and side-slip-rad don't have > the same sign, depending if it's a yasim or a jsbsim plane. > > is there a commonly adopted convention for this property? > > if not, shouldn't we document somewhere the meaning of the different > fdm properties present in fg tree, to avoid such problems in the future > ? > > jano > > ----------------------------------------------------------------------- > ------- > See everything from the browser to the database with AppDynamics Get > end-to-end visibility with application monitoring from AppDynamics > Isolate bottlenecks and diagnose root cause in seconds. > Start your free trial of AppDynamics Pro today! > http://pubads.g.doubleclick.net/gampad/clk?id=48808831&iu=/4140/ostg.cl > ktrk > _______________________________________________ > Flightgear-devel mailing list > Flightgear-devel@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/flightgear-devel ------------------------------------------------------------------------------ See everything from the browser to the database with AppDynamics Get end-to-end visibility with application monitoring from AppDynamics Isolate bottlenecks and diagnose root cause in seconds. Start your free trial of AppDynamics Pro today! http://pubads.g.doubleclick.net/gampad/clk?id=48808831&iu=/4140/ostg.clktrk _______________________________________________ Flightgear-devel mailing list Flightgear-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/flightgear-devel