diff --git a/src/FDM/JSBSim/input_output/FGXMLFileRead.h b/src/FDM/JSBSim/input_output/FGXMLFileRead.h
index 472a79adc..204c40138 100755
--- a/src/FDM/JSBSim/input_output/FGXMLFileRead.h
+++ b/src/FDM/JSBSim/input_output/FGXMLFileRead.h
@@ -74,7 +74,7 @@ protected:
       return 0L;
     }
 
-    readXML(infile, file_parser);
+    readXML(infile, file_parser, XML_filename);
     document = file_parser.GetDocument();
     infile.close();
     
diff --git a/src/FDM/JSBSim/models/FGLGear.h b/src/FDM/JSBSim/models/FGLGear.h
index dfba5bbf0..9b86b6879 100644
--- a/src/FDM/JSBSim/models/FGLGear.h
+++ b/src/FDM/JSBSim/models/FGLGear.h
@@ -162,12 +162,17 @@ CLASS DOCUMENTATION
                 <y> {number} </y>
                 <z> {number} </z>
             </location>
+            <orientation unit="{RAD | DEG}">
+                <pitch> {number} </pitch>
+                <roll> {number} </roll>
+                <yaw> {number} </yaw>
+            </orientation>
             <static_friction> {number} </static_friction>
             <dynamic_friction> {number} </dynamic_friction>
             <rolling_friction> {number} </rolling_friction>
             <spring_coeff unit="{LBS/FT | N/M}"> {number} </spring_coeff>
-            <damping_coeff unit="{LBS/FT/SEC | N/M/SEC}"> {number} </damping_coeff>
-            <damping_coeff_rebound unit="{LBS/FT/SEC | N/M/SEC}"> {number} </damping_coeff_rebound>
+            <damping_coeff [type="SQUARE"] unit="{LBS/FT/SEC | N/M/SEC}"> {number} </damping_coeff>
+            <damping_coeff_rebound [type="SQUARE"] unit="{LBS/FT/SEC | N/M/SEC}"> {number} </damping_coeff_rebound>
             <max_steer unit="DEG"> {number | 0 | 360} </max_steer>
             <brake_group> {NONE | LEFT | RIGHT | CENTER | NOSE | TAIL} </brake_group>
             <retractable>{0 | 1}</retractable>