#include <string>
using std::string;
+#include <simgear/props/tiedpropertylist.hxx>
class FGRidgeLift : public SGSubsystem {
public:
SGPropertyNode_ptr _user_latitude_node;
SGPropertyNode_ptr _ground_elev_node;
+ simgear::TiedPropertyList _tiedProperties;
};
#endif // _FG_RidgeLift_HXX