#include "models/FGAerodynamics.h"
#include "models/FGPropagate.h"
#include "input_output/FGPropertyManager.h"
+#include "input_output/FGXMLElement.h"
#include "models/FGPropulsion.h"
#include "input_output/FGXMLParse.h"
#include "math/FGQuaternion.h"
+#include <iostream>
#include <fstream>
+#include <cstdlib>
+
+using namespace std;
namespace JSBSim {