namespace JSBSim {
-static const char *IdSrc = "$Id$";
+static const char *IdSrc = "$Id: FGJSBBase.cpp,v 1.30 2011/06/13 11:47:04 jberndt Exp $";
static const char *IdHdr = ID_JSBBASE;
/*%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
char FGJSBBase::fgdef[6] = {'\0' };
#endif
-const double FGJSBBase::radtodeg = 57.29578;
-const double FGJSBBase::degtorad = 1.745329E-2;
+const double FGJSBBase::radtodeg = 57.295779513082320876798154814105;
+const double FGJSBBase::degtorad = 0.017453292519943295769236907684886;
const double FGJSBBase::hptoftlbssec = 550.0;
const double FGJSBBase::psftoinhg = 0.014138;
const double FGJSBBase::psftopa = 47.88;
const double FGJSBBase::m3toft3 = 1.0/(fttom*fttom*fttom);
const double FGJSBBase::inhgtopa = 3386.38;
const double FGJSBBase::fttom = 0.3048;
-double FGJSBBase::Reng = 1716.0;
+double FGJSBBase::Reng = 1716.56; // Gas constant for Air (ft-lb/slug-R)
+double FGJSBBase::Rstar = 1545.348; // Universal gas constant
+double FGJSBBase::Mair = 28.9645; //
const double FGJSBBase::SHRatio = 1.40;
// Note that definition of lbtoslug by the inverse of slugtolb and not