diff --git a/libs/opmapcontrol/src/internals/core.cpp b/libs/opmapcontrol/src/internals/core.cpp
index 211603b..46e8f7a 100644
--- a/libs/opmapcontrol/src/internals/core.cpp
+++ b/libs/opmapcontrol/src/internals/core.cpp
@@ -42,8 +42,10 @@ namespace internals {
     minOfTiles(0,0),
     maxOfTiles(0,0),
     zoom(0),
+    projection(NULL),
     isDragging(false),
     TooltipTextPadding(10,10),
+    mapType(MapType::GoogleMap),
     loaderLimit(5),
     maxzoom(21),
     runningThreads(0),
@@ -61,6 +63,9 @@ namespace internals {
     }
     Core::~Core()
     {
+        if (projection) {
+            delete projection;
+        }
         ProcessLoadTaskCallback.waitForDone();
     }
 
diff --git a/libs/opmapcontrol/src/internals/core.h b/libs/opmapcontrol/src/internals/core.h
index 73c652d..c8c50bf 100644
--- a/libs/opmapcontrol/src/internals/core.h
+++ b/libs/opmapcontrol/src/internals/core.h
@@ -135,6 +135,9 @@ namespace internals {
         }
         void SetProjection(PureProjection* value)
         {
+            if (projection) {
+                delete projection;
+            }
             projection=value;
             tileRect=Rectangle(core::Point(0,0),value->TileSize());
         }
diff --git a/libs/opmapcontrol/src/internals/pureprojection.h b/libs/opmapcontrol/src/internals/pureprojection.h
index 77f795d..b75389c 100644
--- a/libs/opmapcontrol/src/internals/pureprojection.h
+++ b/libs/opmapcontrol/src/internals/pureprojection.h
@@ -42,8 +42,9 @@ namespace internals
 class PureProjection
 {
 
-
 public:
+    virtual ~PureProjection() {}
+
     virtual Size TileSize()const=0;
 
     virtual double Axis()const=0;
diff --git a/src/GAudioOutput.cc b/src/GAudioOutput.cc
index 2e40557..5822f9d 100644
--- a/src/GAudioOutput.cc
+++ b/src/GAudioOutput.cc
@@ -94,13 +94,13 @@ GAudioOutput::GAudioOutput(QObject *parent) : QObject(parent),
 
 #if defined Q_OS_LINUX && defined QGC_SPEECH_ENABLED
     espeak_Initialize(AUDIO_OUTPUT_PLAYBACK, 500, NULL, 0); // initialize for playback with 500ms buffer and no options (see speak_lib.h)
-    espeak_VOICE espeak_voice;
-    espeak_voice.languages = "en-uk"; // Default to British English
-    espeak_voice.identifier = NULL; // no specific voice file specified
-    espeak_voice.name = "klatt"; // espeak voice name
-    espeak_voice.gender = 2; // Female
-    espeak_voice.age = 0; // age not specified
-    espeak_SetVoiceByProperties(&espeak_voice);
+    espeak_VOICE *espeak_voice = espeak_GetCurrentVoice();
+    espeak_voice->languages = "en-uk"; // Default to British English
+    espeak_voice->identifier = NULL; // no specific voice file specified
+    espeak_voice->name = "klatt"; // espeak voice name
+    espeak_voice->gender = 2; // Female
+    espeak_voice->age = 0; // age not specified
+    espeak_SetVoiceByProperties(espeak_voice);
 #endif
 
 #if defined _MSC_VER && defined QGC_SPEECH_ENABLED
diff --git a/src/comm/MAVLinkProtocol.cc b/src/comm/MAVLinkProtocol.cc
index 81186fd..332a210 100644
--- a/src/comm/MAVLinkProtocol.cc
+++ b/src/comm/MAVLinkProtocol.cc
@@ -183,6 +183,7 @@ void MAVLinkProtocol::run()
     while(!_should_exit) {
 
         if (isFinished()) {
+            delete heartbeatTimer;
             qDebug() << "MAVLINK WORKER DONE!";
             return;
         }