_z_accel_node = fgGetNode("/accelerations/pilot/z-accel-fps_sec", true);
_out_node =
fgGetNode("/instrumentation/slip-skid-ball/indicated-slip-skid", true);
_z_accel_node = fgGetNode("/accelerations/pilot/z-accel-fps_sec", true);
_out_node =
fgGetNode("/instrumentation/slip-skid-ball/indicated-slip-skid", true);