diff --git a/Aircraft/Instruments-3d/clock/M877/M877.nas b/Aircraft/Instruments-3d/clock/M877/M877.nas
index cf55043a1..1a548827b 100644
--- a/Aircraft/Instruments-3d/clock/M877/M877.nas
+++ b/Aircraft/Instruments-3d/clock/M877/M877.nas
@@ -12,6 +12,7 @@
         m.et_running=0;
         m.et_elapsed=0;
         m.ft_start_time=0;
+	m.ft_running=0;
         m.modetext =["GMT","LT","FT","ET"];
         m.M877 = props.globals.initNode(prop1);
         m.fmeter_sec=m.M877.initNode("flight-meter-sec",0,"DOUBLE");
@@ -32,15 +33,21 @@
         m.ET_MN=m.M877.initNode("ET-min",0,"INT");
         m.FT_HR=m.M877.initNode("FT-hr",0,"INT");
         m.FT_MN=m.M877.initNode("FT-min",0,"INT");
-        m.FTlistener=setlistener("gear/gear/wow",func m.fmeter_control(),0);
         return m;
     },
 #### flightmeter ####
     fmeter_control : func(){
-        if(!getprop("gear/gear/wow")){
-            me.fmeter.start();
-        }else{
-            me.fmeter.stop();
+	var ias =getprop("velocities/airspeed-kt");
+        if(ias>30){
+		if(me.ft_running==0){
+			me.ft_running=1;
+			me.fmeter.start();
+		}
+	}elsif(ias<30){
+		if(me.ft_running==1){
+			me.ft_running=0;
+			me.fmeter.stop();
+		}
         }
     },
 #### displayed mode  ####
@@ -137,19 +144,26 @@
         var ftmin=(fthour-hr) * 60;
         var min = int(ftmin);
         var ftsec= (ftmin- min) *60;
-        me.FT_HR.setValue(hr);
-        me.FT_MN.setValue(min);
+        if(fthour <1){
+		me.FT_HR.setValue(min);
+		me.FT_MN.setValue(ftsec);
+        }else{
+		me.FT_HR.setValue(hr);
+		me.FT_MN.setValue(min);
+        }
     },
 
 #### update clock  ####
     update_clock : func{
         var pwr=me.power.getValue();
+	me.fmeter_control();
         if(me.set_mode==0){
             pwr=1-pwr;
         }else{
             pwr=1;
         }
         me.power.setValue(pwr);
+	
         if(me.flip==0){
             me.update_ET();
         }else{