SGPropertyNode_ptr _trip_odometer_node;
SGPropertyNode_ptr _true_bug_error_node;
SGPropertyNode_ptr _magnetic_bug_error_node;
+ SGPropertyNode_ptr _eastWestVelocity;
+ SGPropertyNode_ptr _northSouthVelocity;
SGPropertyNode_ptr _ref_navaid_id_node;
SGPropertyNode_ptr _ref_navaid_bearing_node;
double _last_speed_kts;
double _last_true_track;
double _last_vertical_speed;
+ double _lastEWVelocity;
+ double _lastNSVelocity;
std::string _mode;
GPSListener* _listener;
SGPropertyNode_ptr _realismSimpleGps; ///< should the GPS be simple or realistic?
// autopilot drive properties
+ SGPropertyNode_ptr _apDrivingFlag;
SGPropertyNode_ptr _apTrueHeading;
SGPropertyNode_ptr _apTargetAltitudeFt;
SGPropertyNode_ptr _apAltitudeLock;