SGPropertyNode *adf_freq, *adf_stby_freq;
SGPropertyNode *adf_stby_mode, *adf_timer_mode;
SGPropertyNode *adf_count_mode, *adf_flight_timer, *adf_elapsed_timer;
SGPropertyNode *adf_freq, *adf_stby_freq;
SGPropertyNode *adf_stby_mode, *adf_timer_mode;
SGPropertyNode *adf_count_mode, *adf_flight_timer, *adf_elapsed_timer;