_y_accel_node = fgGetNode("/accelerations/pilot/y-accel-fps_sec", true);
_z_accel_node = fgGetNode("/accelerations/pilot/z-accel-fps_sec", true);
_out_node = node->getChild("indicated-slip-skid", 0, true);
_y_accel_node = fgGetNode("/accelerations/pilot/y-accel-fps_sec", true);
_z_accel_node = fgGetNode("/accelerations/pilot/z-accel-fps_sec", true);
_out_node = node->getChild("indicated-slip-skid", 0, true);