- SGPropertyNode *target_auto_hdg_node;
- SGPropertyNode *to_flag_node;
- SGPropertyNode *from_flag_node;
- SGPropertyNode *inrange_node;
- SGPropertyNode *cdi_deflection_node;
- SGPropertyNode *cdi_xtrack_error_node;
- SGPropertyNode *has_gs_node;
- SGPropertyNode *loc_node;
- SGPropertyNode *loc_dist_node;
- SGPropertyNode *gs_deflection_node;
- SGPropertyNode *gs_rate_of_climb_node;
- SGPropertyNode *gs_dist_node;
- SGPropertyNode *id_node;
- SGPropertyNode *id_c1_node;
- SGPropertyNode *id_c2_node;
- SGPropertyNode *id_c3_node;
- SGPropertyNode *id_c4_node;
+ SGPropertyNode_ptr target_auto_hdg_node;
+ // suggested autopilot heading
+ // to intercept selected radial
+ SGPropertyNode_ptr time_to_intercept; // estimated time to intecept selected
+ // radial at current speed and heading
+ SGPropertyNode_ptr to_flag_node;
+ SGPropertyNode_ptr from_flag_node;
+ SGPropertyNode_ptr inrange_node;
+ SGPropertyNode_ptr signal_quality_norm_node;
+ SGPropertyNode_ptr cdi_deflection_node;
+ SGPropertyNode_ptr cdi_xtrack_error_node;
+ SGPropertyNode_ptr cdi_xtrack_hdg_err_node;
+ SGPropertyNode_ptr has_gs_node;
+ SGPropertyNode_ptr loc_node;
+ SGPropertyNode_ptr loc_dist_node;
+ SGPropertyNode_ptr gs_deflection_node;
+ SGPropertyNode_ptr gs_rate_of_climb_node;
+ SGPropertyNode_ptr gs_dist_node;
+ SGPropertyNode_ptr nav_id_node;
+ SGPropertyNode_ptr id_c1_node;
+ SGPropertyNode_ptr id_c2_node;
+ SGPropertyNode_ptr id_c3_node;
+ SGPropertyNode_ptr id_c4_node;