namespace JSBSim {
-static const char *IdSrc = "$Id: FGMassBalance.cpp,v 1.37 2011/07/12 01:52:49 jberndt Exp $";
+static const char *IdSrc = "$Id: FGMassBalance.cpp,v 1.39 2011/11/09 21:58:26 bcoconni Exp $";
static const char *IdHdr = ID_MASSBALANCE;
/*%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
//%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
-double FGMassBalance::GetTotalPointMassWeight(void)
+double FGMassBalance::GetTotalPointMassWeight(void) const
{
double PM_total_weight = 0.0;
//%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
-FGColumnVector3& FGMassBalance::GetPointMassMoment(void)
+const FGColumnVector3& FGMassBalance::GetPointMassMoment(void)
{
PointMassCG.InitMatrix();
//%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
-FGMatrix33& FGMassBalance::CalculatePMInertias(void)
+const FGMatrix33& FGMassBalance::CalculatePMInertias(void)
{
unsigned int size;