diff --git a/_locales/en/messages.json b/_locales/en/messages.json
index ebcfd294..91e33056 100755
--- a/_locales/en/messages.json
+++ b/_locales/en/messages.json
@@ -503,9 +503,18 @@
     "configurationBatteryMultiwiiCurrent": {
         "message": "Enable support for legacy Multiwii MSP current output"
     },
-    "configurationLoopTimeHead": {
+    "configurationSystem": {
+        "message": "System configuration"
+    },
+    "configurationLoopTime": {
         "message": "Flight Controller Loop Time"
     },
+    "configurationCalculatedCyclesSec": {    
+        "message": "Cycles/Sec (Hz)"
+    },
+    "configurationLoopTimeHelp": {
+        "message": "<strong>Note:</strong> Changing this may require PID re-tuning."
+    },
     "configurationGPS": {
         "message": "GPS"
     },
@@ -519,7 +528,7 @@
         "message": "Ground Assistance Type"
     },
     "configurationGPSHelp": {
-        "message": "<strong>Note:</strong> Rememer to configure a Serial Port (via Ports tab) when using GPS feature."
+        "message": "<strong>Note:</strong> Remember to configure a Serial Port (via Ports tab) when using GPS feature."
     },
 
     "configurationSerialRX": {
diff --git a/changelog.html b/changelog.html
index 4a5df904..09720a49 100644
--- a/changelog.html
+++ b/changelog.html
@@ -6,7 +6,6 @@
 </p>
 <span>2015.05.23 - 0.65.0 - cleanflight</span>
 <p>
-    - Configuration tab supports setting FC loop time - Requires 1.8.0 firmware.<br />
     - Support flashing of the SPRacingF3.<br />
     - Support manual baud rate configuration for flashing.<br />
 </p>
diff --git a/tabs/configuration.css b/tabs/configuration.css
index 2d8c7434..fe48e434 100644
--- a/tabs/configuration.css
+++ b/tabs/configuration.css
@@ -99,6 +99,13 @@
 
     border: 1px solid silver;
 }
+
+.tab-configuration .number input.disabled {
+    width: 50px;
+    padding: 0px 5px;
+    background-color: #ececec;
+}
+
 .tab-configuration .number span {
     margin-left: 10px;
     line-height: 20px;
@@ -154,27 +161,6 @@
 .tab-configuration .disarm .checkbox span {
     margin-left: 15px;
 }
-.tab-configuration .cycles {      
-    border-bottom: 1px solid #dddddd;
-    margin-top: 16px;
-}
-.tab-configuration .block {
-    float: left;
-    display: block;    
-    border: 1px solid silver;
-}
-.tab-configuration .block .head {
-    display: block;
-    text-align: center;
-    line-height: 20px;
-    font-weight: bold;    
-    border-bottom: 1px solid silver;
-    background-color: #ececec;
-}
-.tab-configuration .block.looptime {
-    width: 200px;
-    margin-top: 11px;
-}
 .tab-configuration .save {
     display: block;
     float: right;
diff --git a/tabs/configuration.html b/tabs/configuration.html
index 1a82b07c..a53226a0 100644
--- a/tabs/configuration.html
+++ b/tabs/configuration.html
@@ -131,19 +131,6 @@
             <p i18n="configurationSerialRXHelp"></p>
         </div>
         
-        <div class="groupTitle" i18n="configurationRSSI"></div>
-        <table>
-            <thead>
-                <tr>
-                    <th i18n="configurationFeatureEnabled"></th>
-                    <th i18n="configurationFeatureName"></th>
-                    <th i18n="configurationFeatureDescription"></th>
-                </tr>
-            </thead>
-            <tbody class="features rssi">
-                <!-- table generated here -->
-            </tbody>
-        </table>
         <div class="groupTitle" i18n="configurationFailsafe"></div>
         <table>
             <thead>
@@ -163,8 +150,6 @@
                 <span i18n="configurationThrottleFailsafe"></span>
             </label>
         </div>
-        
-
     </div>
     <div class="rightWrapper current voltage">
         <div class="groupTitle" i18n="configurationBatteryVoltage"></div>
@@ -205,7 +190,7 @@
                 <span i18n="configurationBatteryScale"></span>
             </label>
         </div>
-                <div class="groupTitle" i18n="configurationCurrent"></div>
+        <div class="groupTitle" i18n="configurationCurrent"></div>
         <table>
             <thead>
                 <tr>
@@ -238,14 +223,41 @@
                 <span i18n="configurationBatteryMultiwiiCurrent"></span>
             </label>
         </div>
-        <div class="cycles" style="display: none;">
-            <div class="block looptime">
-                <span class="head" i18n="configurationLoopTimeHead"></span>
-                <input type="number" name="looptime" step="100" min="0" max="9000"/>
-                <span  class="looptimehz"></span>          
-            </div>
-        </div>
     </div>
+    <div class="clear-both"></div>
+    
+    <div class="leftWrapper rssi">
+        <div class="groupTitle" i18n="configurationRSSI"></div>
+        <table>
+            <thead>
+                <tr>
+                    <th i18n="configurationFeatureEnabled"></th>
+                    <th i18n="configurationFeatureName"></th>
+                    <th i18n="configurationFeatureDescription"></th>
+                </tr>
+            </thead>
+            <tbody class="features rssi">
+                <!-- table generated here -->
+            </tbody>
+        </table>
+    </div>
+    <div class="rightWrapper system">
+        <div class="groupTitle" i18n="configurationSystem"></div>
+        <div class="number">
+            <label>
+                <input type="number" name="looptime" step="100" min="0" max="9000"/>
+                <span i18n="configurationLoopTime"></span>
+            </label>
+        </div>
+        <div class="number">
+            <label>
+                <input type="text" name="looptimehz" readonly="readonly" class="disabled"/>
+                <span i18n="configurationCalculatedCyclesSec"></span>
+            </label>
+        </div>
+        <p class="help" i18n="configurationLoopTimeHelp"></p>
+    </div>
+    
     <div class="clear-both"></div>
     <div class="leftWrapper gps">
         <div class="groupTitle" i18n="configurationGPS"></div>
@@ -307,6 +319,7 @@
             </tbody>
         </table>
     </div>
+    
     <div class="clear-both"></div>
     <div class="buttons">
         <a class="save" href="#" i18n="configurationButtonSave"></a>
diff --git a/tabs/configuration.js b/tabs/configuration.js
index ade7a696..1e5f5e55 100644
--- a/tabs/configuration.js
+++ b/tabs/configuration.js
@@ -49,6 +49,17 @@ TABS.configuration.initialize = function (callback, scrollPosition) {
 
     MSP.send_message(MSP_codes.MSP_IDENT, false, false, load_config);
 
+    function recalculate_cycles_sec() {
+        var looptime = $('input[name="looptime"]').val();
+
+        var message = 'Max';
+        if (looptime > 0) {
+            message = parseFloat((1 / looptime) * 1000 * 1000).toFixed(0);
+        }
+        
+        $('input[name="looptimehz"]').val(message);
+    }
+    
     function process_html() {
         // translate to user-selected language
         localize();
@@ -278,10 +289,8 @@ TABS.configuration.initialize = function (callback, scrollPosition) {
             
             // fill FC loop time
             $('input[name="looptime"]').val(FC_CONFIG.loopTime);
-            if(FC_CONFIG.loopTime > 0)
-                $('span.looptimehz').text(parseFloat((1/FC_CONFIG.loopTime)*1000*1000).toFixed(0) + '  Cycles per Sec');
-            else
-                $('span.looptimehz').text('Maximum Cycles per Sec');
+
+            recalculate_cycles_sec();
             
             $('div.cycles').show();
         }
@@ -307,11 +316,7 @@ TABS.configuration.initialize = function (callback, scrollPosition) {
 
         // UI hooks
         $('input[name="looptime"]').change(function() {
-            FC_CONFIG.loopTime = parseInt($('input[name="looptime"]').val());
-            if(FC_CONFIG.loopTime > 0)
-                $('span.looptimehz').text(parseFloat((1/FC_CONFIG.loopTime)*1000*1000).toFixed(0) + '  Cycles per Sec');
-            else
-                $('span.looptimehz').text('Maximum Cycles per Sec');
+            recalculate_cycles_sec();
         });
 
         $('input[type="checkbox"].feature', features_e).change(function () {