Clarify where the summing of Drive and Idle Axles comes from.

No code changed.

Author: rwf-rr

Source/Contrib/ContentManager/Models/Car.cs

@@ -100,6 +100,7 @@ public Car(Content content)
             // this is not always correct as TrainCar uses the WheelAxles array for the count; that is too complex to do here
             if (SubType.Equals("Steam") && NumDriveAxles >= (NumDriveAxles + NumIdleAxles)) { NumDriveAxles /= 2; }
 
+            // see TrainCar.UpdateTrainDerailmentRisk(), ~ line 1609
             NumAllAxles = NumDriveAxles + NumIdleAxles;
 
             // see TrainCar.UpdateTrainDerailmentRisk()

Source/Contrib/ContentManager/Models/Consist.cs

@@ -114,6 +114,7 @@ public Consist(Content content)
                         // this is not always correct as TrainCar uses the WheelAxles array for the count; that is too complex to do here
                         if (subType.Equals("Steam") && numDriveAxles >= (numDriveAxles + numIdleAxles)) { numDriveAxles /= 2; }
 
+                        // see TrainCar.UpdateTrainDerailmentRisk(), ~ line 1609
                         numAllAxles = numDriveAxles + numIdleAxles;
 
                         // exclude legacy EOT from total axle count