diff --git a/src/blackgui/components/weathercomponent.cpp b/src/blackgui/components/weathercomponent.cpp
index 2fe98afab..896809a6f 100644
--- a/src/blackgui/components/weathercomponent.cpp
+++ b/src/blackgui/components/weathercomponent.cpp
@@ -15,7 +15,6 @@
 #include "ui_weathercomponent.h"
 
 #include <QCompleter>
-#include <QRegExpValidator>
 #include <QRegularExpression>
 #include <QStringView>
 #include <QStringBuilder>
diff --git a/src/blackgui/dockwidget.cpp b/src/blackgui/dockwidget.cpp
index 359cc13ed..18326e3e9 100644
--- a/src/blackgui/dockwidget.cpp
+++ b/src/blackgui/dockwidget.cpp
@@ -31,7 +31,6 @@
 #include <QPointer>
 #include <QtGlobal>
 #include <QApplication>
-#include <QDesktopWidget>
 
 using namespace BlackMisc;
 using namespace BlackGui::Components;
diff --git a/src/blackgui/guiutility.cpp b/src/blackgui/guiutility.cpp
index 67501fc1d..f620b610c 100644
--- a/src/blackgui/guiutility.cpp
+++ b/src/blackgui/guiutility.cpp
@@ -116,20 +116,6 @@ namespace BlackGui
         return QApplication::desktop()->screenGeometry(QApplication::desktop()).size();
     }
 
-    QSizeF CGuiUtility::physicalScreenSize(QWidget *currentWidget)
-    {
-        QScreen *s = QGuiApplication::screens().front();
-        if (currentWidget)
-        {
-            const int sn = QApplication::desktop()->screenNumber(currentWidget);
-            s = QGuiApplication::screens().at(sn);
-        }
-
-        if (!s) { return QSizeF(); }
-        const QSizeF ps1 = s->physicalSize();
-        return ps1;
-    }
-
     namespace Private
     {
 #ifdef Q_OS_WINDOWS
diff --git a/src/blackgui/guiutility.h b/src/blackgui/guiutility.h
index 7616ea61c..4f40c71ce 100644
--- a/src/blackgui/guiutility.h
+++ b/src/blackgui/guiutility.h
@@ -66,10 +66,6 @@ namespace BlackGui
         //! \remark might be scaled depending on CGuiUtility::mainApplicationWidgetPixelRatio
         static QSize desktopSize();
 
-        //! Pysical screen resolution
-        //! \remark unscaled
-        static QSizeF physicalScreenSize(QWidget *currentWidget = nullptr);
-
         //! Qt independent implementation
         //! \remark allows to return values before QGuiApplication is initialized
         static QSize physicalScreenSizeOs();
diff --git a/src/blackgui/views/aircraftmodelstatisticsdialog.cpp b/src/blackgui/views/aircraftmodelstatisticsdialog.cpp
index a3cebb829..1058bc31f 100644
--- a/src/blackgui/views/aircraftmodelstatisticsdialog.cpp
+++ b/src/blackgui/views/aircraftmodelstatisticsdialog.cpp
@@ -13,7 +13,6 @@
 #include <QStringBuilder>
 #include <QStringList>
 
-using namespace QtCharts;
 using namespace BlackMisc::Aviation;
 using namespace BlackMisc::Simulation;
 
diff --git a/src/blackgui/views/aircraftmodelstatisticsdialog.h b/src/blackgui/views/aircraftmodelstatisticsdialog.h
index 2a988049c..e1a8a7b97 100644
--- a/src/blackgui/views/aircraftmodelstatisticsdialog.h
+++ b/src/blackgui/views/aircraftmodelstatisticsdialog.h
@@ -14,11 +14,6 @@ namespace Ui
 {
     class CAircraftModelStatisticsDialog;
 }
-namespace QtCharts
-{
-    class QBarSeries;
-    class QHorizontalBarSeries;
-}
 namespace BlackGui::Views
 {
     //! Info about the models
diff --git a/src/blackgui/views/viewbasenontemplate.cpp b/src/blackgui/views/viewbasenontemplate.cpp
index 7945bf0f1..79b6e66e4 100644
--- a/src/blackgui/views/viewbasenontemplate.cpp
+++ b/src/blackgui/views/viewbasenontemplate.cpp
@@ -17,7 +17,6 @@
 
 #include <QApplication>
 #include <QAction>
-#include <QDesktopWidget>
 #include <QMetaMethod>
 #include <QShortcut>
 
diff --git a/src/blackmisc/audio/audiodeviceinfo.cpp b/src/blackmisc/audio/audiodeviceinfo.cpp
index 1d051591e..e7f85d944 100644
--- a/src/blackmisc/audio/audiodeviceinfo.cpp
+++ b/src/blackmisc/audio/audiodeviceinfo.cpp
@@ -46,17 +46,6 @@ namespace BlackMisc::Audio
                stringCompare(device.getMachineName(), this->getMachineName(), Qt::CaseInsensitive);
     }
 
-    CAudioDeviceInfo::DeviceType CAudioDeviceInfo::fromQtMode(QAudio::Mode m)
-    {
-        switch (m)
-        {
-        case QAudio::AudioInput: return InputDevice;
-        case QAudio::AudioOutput: return OutputDevice;
-        default: break;
-        }
-        return Unknown;
-    }
-
     CAudioDeviceInfo CAudioDeviceInfo::getDefaultOutputDevice()
     {
         return CAudioDeviceInfo(OutputDevice, QAudioDeviceInfo::defaultOutputDevice().deviceName());
diff --git a/src/blackmisc/audio/audiodeviceinfo.h b/src/blackmisc/audio/audiodeviceinfo.h
index e10990d22..21b083cbc 100644
--- a/src/blackmisc/audio/audiodeviceinfo.h
+++ b/src/blackmisc/audio/audiodeviceinfo.h
@@ -11,7 +11,6 @@
 #include "blackmisc/valueobject.h"
 #include "blackmisc/blackmiscexport.h"
 
-#include <QAudioDeviceInfo>
 #include <QMetaType>
 #include <QString>
 
@@ -83,9 +82,6 @@ namespace BlackMisc::Audio
         //! Matching name, type and machine and process
         bool matchesNameTypeMachineProcess(const CAudioDeviceInfo &device) const;
 
-        //! Convert the Qt type
-        static DeviceType fromQtMode(QAudio::Mode m);
-
         //! Default output device
         static CAudioDeviceInfo getDefaultOutputDevice();
 
diff --git a/src/blackmisc/variant.h b/src/blackmisc/variant.h
index e2cd25f73..e7d9770eb 100644
--- a/src/blackmisc/variant.h
+++ b/src/blackmisc/variant.h
@@ -24,6 +24,7 @@
 #include <QPixmap>
 #include <QString>
 #include <QVariant>
+#include <QSequentialIterable>
 #include <QtGlobal>
 #include <algorithm>
 #include <type_traits>
diff --git a/src/blacksound/audioutilities.cpp b/src/blacksound/audioutilities.cpp
index 806d8aae6..5b316c57e 100644
--- a/src/blacksound/audioutilities.cpp
+++ b/src/blacksound/audioutilities.cpp
@@ -40,13 +40,6 @@ namespace BlackSound
         return output;
     }
 
-    QVector<qint16> convertFloatBytesTo16BitPCM(const QByteArray &input)
-    {
-        Q_UNUSED(input)
-        // qFatal("Not implemented");
-        return {};
-    }
-
     QVector<float> convertFromMonoToStereo(const QVector<float> &mono)
     {
         QVector<float> stereo;
diff --git a/src/blacksound/audioutilities.h b/src/blacksound/audioutilities.h
index db1ffaf03..619c82118 100644
--- a/src/blacksound/audioutilities.h
+++ b/src/blacksound/audioutilities.h
@@ -19,7 +19,6 @@ namespace BlackSound
     //! Conversion functions
     BLACKSOUND_EXPORT QVector<float> convertBytesTo32BitFloatPCM(const QByteArray &input);
     BLACKSOUND_EXPORT QVector<qint16> convertBytesTo16BitPCM(const QByteArray &input);
-    BLACKSOUND_EXPORT QVector<qint16> convertFloatBytesTo16BitPCM(const QByteArray &input);
     BLACKSOUND_EXPORT QVector<float> convertFromMonoToStereo(const QVector<float> &mono);
     BLACKSOUND_EXPORT QVector<qint16> convertFromStereoToMono(const QVector<qint16> &stereo);
     BLACKSOUND_EXPORT QVector<float> convertFromShortToFloat(const QVector<qint16> &input);