diff --git a/Aircraft/Instruments-3d/kfc200/kfc-200.nas b/Aircraft/Instruments-3d/kfc200/kfc-200.nas
index 6552f20a8..37ff92e91 100644
--- a/Aircraft/Instruments-3d/kfc200/kfc-200.nas
+++ b/Aircraft/Instruments-3d/kfc200/kfc-200.nas
@@ -132,7 +132,7 @@ update_nav = func {
 	if(VNAV == "gs-arm"){
 		if(NAVGS_RANGE.getValue()< 30000){
 		test = GS_DEFLECTION.getValue();
-		if(test < 10 or test > -10){fdprop.getNode("fdmodeV").setValue("gs");}
+		if(test < 1 ){fdprop.getNode("fdmodeV").setValue("gs");}
 		}
 	}
 	
@@ -140,7 +140,13 @@ update_nav = func {
 		var offset = fdprop.getNode("alt-offset").getValue();		
 		if(offset > -990 and offset < 990){
 		fdprop.getNode("fdmodeV").setValue("alt");}
-		}				
+		}
+
+	if(VNAV == "alt"){
+		offset = fdprop.getNode("alt-offset").getValue();		
+		if(offset < -990 and offset > 990){
+		fdprop.getNode("fdmodeV").setValue("alt-arm");}
+		}
 }
 
 get_altoffset = func{
@@ -161,4 +167,3 @@ update = func {
 }
 
 settimer(update, 0);
-
diff --git a/Aircraft/Instruments-3d/kfc200/kfc200-3d.xml b/Aircraft/Instruments-3d/kfc200/kfc200-3d.xml
index 92102d1dc..6c0637fa7 100644
--- a/Aircraft/Instruments-3d/kfc200/kfc200-3d.xml
+++ b/Aircraft/Instruments-3d/kfc200/kfc200-3d.xml
@@ -214,9 +214,9 @@ Syd Adams
    		<object-name>kfc-crs.001</object-name>
    		<property>instrumentation/nav/heading-needle-deflection</property>
   		<interpolation>
-			<entry><ind>-10.0</ind><dep>-0.0193</dep></entry>
+			<entry><ind>-10.0</ind><dep>-0.018</dep></entry>
 			<entry><ind>0.0</ind><dep>0.0</dep></entry>
-			<entry><ind>10.0</ind><dep>0.0193</dep></entry>
+			<entry><ind>10.0</ind><dep>0.018</dep></entry>
    		</interpolation>
    		<axis>
 			<x>0.0</x>
@@ -235,11 +235,11 @@ Syd Adams
    		<object-name>GSneedle</object-name>
    		<property>instrumentation/nav/gs-needle-deflection</property>
    		<interpolation>
-			<entry><ind>-100.0</ind><dep>-0.0183</dep></entry>
-			<entry><ind>-10.0</ind><dep>-0.0183</dep></entry>
+			<entry><ind>-100.0</ind><dep>-0.010</dep></entry>
+			<entry><ind>-5.0</ind><dep>-0.010</dep></entry>
 			<entry><ind>0.0</ind><dep>0.0</dep></entry>
-			<entry><ind>10.0</ind><dep>0.0183</dep></entry>
-			<entry><ind>100.0</ind><dep>0.0183</dep></entry>
+			<entry><ind>10.0</ind><dep>0.0172</dep></entry>
+			<entry><ind>100.0</ind><dep>0.0172</dep></entry>
    		</interpolation>
    		<axis>
 			<x>0.0</x>
diff --git a/Aircraft/Instruments-3d/kns80/KNS80.nas b/Aircraft/Instruments-3d/kns80/KNS80.nas
index 18ec9815f..87279370f 100644
--- a/Aircraft/Instruments-3d/kns80/KNS80.nas
+++ b/Aircraft/Instruments-3d/kns80/KNS80.nas
@@ -116,7 +116,7 @@ setlistener("/instrumentation/kns-80/serviceable", func {
 
 setlistener("/instrumentation/kns-80/volume", func {
 	if(FDM_ON == 0){return;}
-	#setprop("/instrumentation/nav/volume",cmdarg().getValue());
+	setprop("/instrumentation/nav/volume",cmdarg().getValue());
 	setprop("/instrumentation/dme/volume",cmdarg().getValue());
 	});