diff --git a/src/MultiPlayer/multiplaymgr.cxx b/src/MultiPlayer/multiplaymgr.cxx
index 51cca2d..a4edc58 100644
--- a/src/MultiPlayer/multiplaymgr.cxx
+++ b/src/MultiPlayer/multiplaymgr.cxx
@@ -1446,28 +1446,28 @@ FGMultiplayMgr::SendMyPosition(const FGExternalMotionData& motionInfo)
         PosMsg->jwhtext[1] = XDR_encode_float (pitch);
         PosMsg->jwhtext[2] = XDR_encode_float (roll);
 
-        //SGPropertyNode* n = fgGetNode("/sim/instrumentation/gps/indicated-ground-speed-kt",true);
-        //float speed =  n->getDoubleValue();
-        //PosMsg->jwhtext[3] = XDR_encode_float (speed);
+        SGPropertyNode* n = fgGetNode("/instrumentation/gps/indicated-ground-speed-kt",true);
+        float speed =  n->getDoubleValue();
+        PosMsg->jwhtext[3] = XDR_encode_float (speed);
        
        /*
-        n = fgGetNode("/sim/instrumentation/gps/indicated-vertical-speed");
+        n = fgGetNode("/instrumentation/gps/indicated-vertical-speed");
 
-        n = fgGetNode("/sim/instrumentation/airspeed-indicator/indicated-speed-kt");  //指示空速
+        n = fgGetNode("/instrumentation/airspeed-indicator/indicated-speed-kt");  //指示空速
 
-        n = fgGetNode("/sim/instrumentation/airspeed-indicator/true-speed-kt");  //真空速
+        n = fgGetNode("/instrumentation/airspeed-indicator/true-speed-kt");  //真空速
         
-        n = fgGetNode("/sim/instrumentation/gps/indicated-longitude-deg");
+        n = fgGetNode("/instrumentation/gps/indicated-longitude-deg");
         
-        n = fgGetNode("/sim/instrumentation/gps/indicated-latitude-deg");
+        n = fgGetNode("/instrumentation/gps/indicated-latitude-deg");
         
-        n = fgGetNode("/sim/instrumentation/gps/indicated-altitude-ft");
+        n = fgGetNode("/instrumentation/gps/indicated-altitude-ft");
         
-        n = fgGetNode("/sim/instrumentation/comm/airport-id");  //起飞机场
+        n = fgGetNode("/instrumentation/comm/airport-id");  //起飞机场
         
-        n = fgGetNode("/sim/instrumentation/comm/frequencies/selected-mhz");   //守护频点
+        n = fgGetNode("/instrumentation/comm/frequencies/selected-mhz");   //守护频点
 
-        n = fgGetNode("/sim/instrumentation/transponder/id-code");
+        n = fgGetNode("/instrumentation/transponder/id-code");
         
         //n = fgGetNode("");