diff --git a/src/blackcore/simulator.cpp b/src/blackcore/simulator.cpp
index 18f511ced..723d986c9 100644
--- a/src/blackcore/simulator.cpp
+++ b/src/blackcore/simulator.cpp
@@ -548,6 +548,19 @@ namespace BlackCore
             return true;
         }
 
+        // CG override
+        if (part1 == QStringView(u"cg") && parser.hasPart(3))
+        {
+            const QString ms = parser.part(3).toUpper();
+            CLength cg;
+            cg.parseFromString(parser.part(2), CPqString::SeparatorBestGuess);
+            if (!ms.isEmpty())
+            {
+                CLogMessage(this).info(u"Setting CG for '%1': %2") << ms << cg.valueRoundedWithUnit();
+                this->insertCGForModelStringOverridden(cg, ms);
+            }
+        }
+
         // driver specific cmd line arguments
         return this->parseDetails(parser);
     }
@@ -824,12 +837,14 @@ namespace BlackCore
             this->setMaxElevationsRemembered(aircraftCount * 3); // at least 3 elevations per aircraft, even better as not all are requesting elevations
             this->rememberGroundElevation(callsign, elevation);
         }
-        if (!cg.isNull() && !this->hasSameCG(cg, callsign))
+
+        const CLength cgO = this->overriddenCGorDefault(cg, modelString);
+        if (!cgO.isNull() && !this->hasSameCG(cgO, callsign))
         {
-            this->insertCG(cg, modelString, callsign); // per model string and CG
+            this->insertCG(cgO, modelString, callsign); // per model string and CG
 
             // here we know we have a valid model and CG
-            m_autoPublishing.insert(modelString, cg);
+            m_autoPublishing.insert(modelString, cg); // still using CG here, not the overridden value
             m_autoPublishing.insert(modelString, this->getSimulatorInfo());
         }
     }
diff --git a/src/blackcore/simulator.h b/src/blackcore/simulator.h
index 548143387..b81aef66f 100644
--- a/src/blackcore/simulator.h
+++ b/src/blackcore/simulator.h
@@ -258,6 +258,7 @@ namespace BlackCore
         //! \addtogroup swiftdotcommands
         //! @{
         //! <pre>
+        //! .drv cg modelstring            set overridden CG for model string      BlackCore::ISimulator
         //! .drv unload                    unload plugin                           BlackCore::ISimulator
         //! .drv limit number              limit the number of updates             BlackCore::ISimulator
         //! .drv logint callsign           log interpolator for callsign           BlackCore::ISimulator
@@ -269,8 +270,7 @@ namespace BlackCore
         //! .drv aircraft readd callsign   re-add (add again) aircraft             BlackCore::ISimulator
         //! .drv aircraft readd all        re-add all aircraft                     BlackCore::ISimulator
         //! .drv aircraft rm callsign      remove aircraft                         BlackCore::ISimulator
-        //! .drv    unload                 unload driver                           BlackCore::ISimulator
-        //! .drv    fsuipc      on|off     enable/disable FSUIPC (if applicable)   BlackSimPlugin::FsCommon::CSimulatorFsCommon
+        //! .drv fsuipc   on|off           enable/disable FSUIPC (if applicable)   BlackSimPlugin::FsCommon::CSimulatorFsCommon
         //! </pre>
         //! @}
         //! Parse command line for simulator drivers, derived classes can add specific parsing by overriding ISimulator::parseDetails
diff --git a/src/blackmisc/simulation/simulationenvironmentprovider.cpp b/src/blackmisc/simulation/simulationenvironmentprovider.cpp
index d29d0c5be..4d7c1b630 100644
--- a/src/blackmisc/simulation/simulationenvironmentprovider.cpp
+++ b/src/blackmisc/simulation/simulationenvironmentprovider.cpp
@@ -85,10 +85,37 @@ namespace BlackMisc
             if (modelString.isEmpty()) { return false; }
             QWriteLocker l(&m_lockCG);
             if (!m_enableCG) { return false; }
+            if (cg.isNull())
+            {
+                m_cgsPerModel.remove(modelString.toUpper());
+                return false;
+            }
+
             m_cgsPerModel[modelString.toUpper()] = cg;
             return true;
         }
 
+        bool ISimulationEnvironmentProvider::insertCGForModelStringOverridden(const CLength &cg, const QString &modelString)
+        {
+            if (modelString.isEmpty()) { return false; }
+            QWriteLocker l(&m_lockCG);
+            if (cg.isNull())
+            {
+                m_cgsPerModelOverridden.remove(modelString.toUpper());
+                return false;
+            }
+            m_cgsPerModelOverridden[modelString.toUpper()] = cg;
+            return true;
+        }
+
+        CLength ISimulationEnvironmentProvider::overriddenCGorDefault(const CLength &cg, const QString &modelString) const
+        {
+            if (modelString.isEmpty()) { return cg; }
+            QReadLocker l(&m_lockCG);
+            if (!m_cgsPerModelOverridden.contains(modelString.toUpper())) { return cg; }
+            return m_cgsPerModelOverridden[modelString.toUpper()];
+        }
+
         int ISimulationEnvironmentProvider::removeCG(const CCallsign &cs)
         {
             QWriteLocker l(&m_lockCG);
@@ -258,6 +285,7 @@ namespace BlackMisc
             if (modelString.isEmpty()) { return CLength::null(); }
             const QString ms = modelString.toUpper();
             QReadLocker l(&m_lockCG);
+            if (m_cgsPerModelOverridden.contains(ms)) { return m_cgsPerModelOverridden.value(ms); }
             if (!m_enableCG || !m_cgsPerModel.contains(ms)) { return CLength::null(); }
             return m_cgsPerModel.value(ms);
         }
diff --git a/src/blackmisc/simulation/simulationenvironmentprovider.h b/src/blackmisc/simulation/simulationenvironmentprovider.h
index 8a33f5d55..baedfdfc0 100644
--- a/src/blackmisc/simulation/simulationenvironmentprovider.h
+++ b/src/blackmisc/simulation/simulationenvironmentprovider.h
@@ -204,6 +204,15 @@ namespace BlackMisc
             //! \threadsafe
             bool insertCGForModelString(const PhysicalQuantities::CLength &cg, const QString &modelString);
 
+            //! Insert or replace a CG (overridden mode)
+            //! \remark passing a NULL value will remove the CG
+            //! \threadsafe
+            bool insertCGForModelStringOverridden(const PhysicalQuantities::CLength &cg, const QString &modelString);
+
+            //! Return the overridden CG value or the given default CG value
+            //! \threadsafe
+            PhysicalQuantities::CLength overriddenCGorDefault(const PhysicalQuantities::CLength &cg, const QString &modelString) const;
+
             //! Remove a CG
             //! \threadsafe
             int removeCG(const Aviation::CCallsign &cs);
@@ -222,6 +231,7 @@ namespace BlackMisc
             Aviation::CTimestampPerCallsign m_pendingElevationRequests; //!< pending elevation requests for aircraft callsign
             Aviation::CLengthPerCallsign    m_cgsPerCallsign;           //!< CGs per callsign
             QHash<QString, PhysicalQuantities::CLength> m_cgsPerModel;  //!< CGs per model string
+            QHash<QString, PhysicalQuantities::CLength> m_cgsPerModelOverridden; //!< CGs per model string manually forced
             qint64 m_statsMaxElevRequestTimeMs     = -1;
             qint64 m_statsCurrentElevRequestTimeMs = -1;