Added Nas function that calculates distance and bearing to target.

HUD.xml

@@ -305,12 +305,11 @@
 		<width>1</width>
 		<height>1</height>
 		<input>
-			<property>/orientation/heading-deg</property>
+			<property>/tracking/bearing</property>
             <factor>1.0</factor>
 		</input>
-		<format>%3.2f</format>
+		<format>BRG   %3.2f</format>
 		<halign>left</halign>
-		<prefix>BRG </prefix>
 	</label>
 
 	<label>
@@ -320,12 +319,11 @@
 		<width>1</width>
 		<height>1</height>
 		<input>
-			<property>/position/altitude-agl-ft</property>
+			<property>/tracking/rng-km</property>
             <factor>1.0</factor>
 		</input>
-		<format>%3.4f</format>
+		<format>RNG   %3.2f</format>
 		<halign>left</halign>
-		<prefix>RNG </prefix>
 	</label>
 
 	<label>
@@ -335,12 +333,11 @@
 		<width>1</width>
 		<height>1</height>
 		<input>
-			<property>/position/altitude-agl-ft</property>
+			<property>/tracking/rng-nml</property>
             <factor>1.0</factor>
 		</input>
-		<format>%3.4f</format>
+		<format>RNG   %3.2f</format>
 		<halign>left</halign>
-		<prefix>RNG </prefix>
 	</label>
 
 	<label>

MQ-9-JSBSim-set.xml

@@ -463,6 +463,10 @@
 			<file>Aircraft/MQ-9/Nasal/Crash.nas</file>
 		</Crash>
 		
+		<Tracking>
+			<file>Aircraft/MQ-9/Nasal/Tracking.nas</file>
+		</Tracking>
+
 		<Turret>
 			<file>Aircraft/MQ-9/Nasal/Turret.nas</file>
 		</Turret>

MQ-9-JSBSim.xml

@@ -85,7 +85,7 @@
      <z>   -10.82 </z>
    </location>
    <pointmass name="Payload">
-    <description> 4039.89 LBS should bring model up to entered max weight</description>
+    <description> 4039.89 LBS + full (1280 LBS) fuel should bring model up to entered max weight</description>
     <weight unit="LBS">   2019.94 </weight>
     <location name="POINTMASS" unit="IN">
       <x> 207.84 </x>

Nasal/Tracking.nas

@@ -0,0 +1,37 @@
+#Place holder
+var getTrackData = func {
+#                me.ac = geo.aircraft_position();
+#                me.distance = me.ac.distance_to(me.coord);
+#                me.bearing = me.ac.course_to(me.coord);
+
+#                var dalt = alt - me.ac.alt();
+#                var ac_hdg = getprop("/orientation/heading-deg");
+#                var ac_pitch = getprop("/orientation/pitch-deg");
+#                var ac_contact_dist = getprop("/systems/refuel/contact-radius-m");
+#                var elev = math.atan2(dalt, me.distance) * R2D;
+#
+
+# print("My test module got loaded!");
+#var broken = func {
+ var rngM=110000.0;
+ var brg=0.0;
+# 
+var tgt=geo.click_position();
+if (tgt != nil){
+	var ac=geo.aircraft_position();
+	var distance = ac.distance_to(tgt);
+        var bearing =ac.course_to(tgt);
+ #setprop("/tracking/test",tgt.lat());
+ 	rngM=distance;
+	brg=bearing;
+}
+#
+# # finally, write the result to the property tree using the setprop() call
+ #setprop("tracking/engine[0]/egt-degc", degC);
+ setprop("/tracking/rng-km", rngM * 0.001);
+ setprop("/tracking/rng-nml", rngM * 0.000539957);
+ setprop("/tracking/bearing",brg);
+}
+
+setlistener("sim/signals/click", getTrackData,1);
+#settimer(getTrackData, 0.1);