diff --git a/VECTO/GUI/MainForm.Designer.vb b/VECTO/GUI/MainForm.Designer.vb
index 6d0a4f34c615fdcea9704eb662eb21608b5bc090..ed41cb78d986a6c158530598aa78e044100ecd52 100644
--- a/VECTO/GUI/MainForm.Designer.vb
+++ b/VECTO/GUI/MainForm.Designer.vb
@@ -115,6 +115,8 @@ Partial Class MainForm
 		Me.OpenInGraphWindowToolStripMenuItem = New System.Windows.Forms.ToolStripMenuItem()
 		Me.ShowInFolderToolStripMenuItem = New System.Windows.Forms.ToolStripMenuItem()
 		Me.ToolTip1 = New System.Windows.Forms.ToolTip(Me.components)
+		Me.cbValidateRunData = New System.Windows.Forms.CheckBox()
+		Me.GroupBox3 = New System.Windows.Forms.GroupBox()
 		Me.StatusBAR.SuspendLayout()
 		Me.TabControl1.SuspendLayout()
 		Me.TabPageGEN.SuspendLayout()
@@ -131,6 +133,7 @@ Partial Class MainForm
 		Me.SplitContainer1.SuspendLayout()
 		Me.ToolStrip1.SuspendLayout()
 		Me.CmOpenFile.SuspendLayout()
+		Me.GroupBox3.SuspendLayout()
 		Me.SuspendLayout()
 		'
 		'StatusBAR
@@ -373,6 +376,7 @@ Partial Class MainForm
 		'
 		'PanelOptAllg
 		'
+		Me.PanelOptAllg.Controls.Add(Me.GroupBox3)
 		Me.PanelOptAllg.Controls.Add(Me.GroupBox2)
 		Me.PanelOptAllg.Controls.Add(Me.GroupBox1)
 		Me.PanelOptAllg.Location = New System.Drawing.Point(6, 6)
@@ -384,12 +388,12 @@ Partial Class MainForm
 		'
 		Me.GroupBox2.Controls.Add(Me.ChBoxModOut)
 		Me.GroupBox2.Controls.Add(Me.ChBoxMod1Hz)
-		Me.GroupBox2.Location = New System.Drawing.Point(9, 81)
+		Me.GroupBox2.Location = New System.Drawing.Point(3, 82)
 		Me.GroupBox2.Name = "GroupBox2"
-		Me.GroupBox2.Size = New System.Drawing.Size(167, 89)
+		Me.GroupBox2.Size = New System.Drawing.Size(173, 89)
 		Me.GroupBox2.TabIndex = 16
 		Me.GroupBox2.TabStop = False
-		Me.GroupBox2.Text = "Mode"
+		Me.GroupBox2.Text = "Output"
 		'
 		'ChBoxModOut
 		'
@@ -797,6 +801,28 @@ Partial Class MainForm
 		Me.ShowInFolderToolStripMenuItem.Size = New System.Drawing.Size(173, 22)
 		Me.ShowInFolderToolStripMenuItem.Text = "Show in Folder"
 		'
+		'cbValidateRunData
+		'
+		Me.cbValidateRunData.AutoSize = True
+		Me.cbValidateRunData.Checked = True
+		Me.cbValidateRunData.CheckState = System.Windows.Forms.CheckState.Checked
+		Me.cbValidateRunData.Location = New System.Drawing.Point(6, 19)
+		Me.cbValidateRunData.Name = "cbValidateRunData"
+		Me.cbValidateRunData.Size = New System.Drawing.Size(90, 17)
+		Me.cbValidateRunData.TabIndex = 17
+		Me.cbValidateRunData.Text = "Validate Data"
+		Me.cbValidateRunData.UseVisualStyleBackColor = True
+		'
+		'GroupBox3
+		'
+		Me.GroupBox3.Controls.Add(Me.cbValidateRunData)
+		Me.GroupBox3.Location = New System.Drawing.Point(3, 177)
+		Me.GroupBox3.Name = "GroupBox3"
+		Me.GroupBox3.Size = New System.Drawing.Size(173, 64)
+		Me.GroupBox3.TabIndex = 18
+		Me.GroupBox3.TabStop = False
+		Me.GroupBox3.Text = "Misc"
+		'
 		'MainForm
 		'
 		Me.AcceptButton = Me.btStartV3
@@ -833,6 +859,8 @@ Partial Class MainForm
 		Me.ToolStrip1.ResumeLayout(False)
 		Me.ToolStrip1.PerformLayout()
 		Me.CmOpenFile.ResumeLayout(False)
+		Me.GroupBox3.ResumeLayout(False)
+		Me.GroupBox3.PerformLayout()
 		Me.ResumeLayout(False)
 		Me.PerformLayout()
 
@@ -925,5 +953,7 @@ Partial Class MainForm
 	Friend WithEvents btnExportXML As System.Windows.Forms.Button
 	Friend WithEvents btnImportXML As System.Windows.Forms.Button
 	Friend WithEvents ShowInFolderMenuItem As System.Windows.Forms.ToolStripMenuItem
+	Friend WithEvents GroupBox3 As System.Windows.Forms.GroupBox
+	Friend WithEvents cbValidateRunData As System.Windows.Forms.CheckBox
 
 End Class
diff --git a/VECTO/GUI/MainForm.vb b/VECTO/GUI/MainForm.vb
index c408c7348c6a7c806903c0d722fff1bdebd6f243..56dcb1f006b4d1ee27e05df38cf9aff1205725b0 100644
--- a/VECTO/GUI/MainForm.vb
+++ b/VECTO/GUI/MainForm.vb
@@ -1022,6 +1022,7 @@ lbFound:
 				Dim runsFactory As SimulatorFactory = New SimulatorFactory(mode, input, fileWriter)
 				runsFactory.WriteModalResults = Cfg.ModOut
 				runsFactory.ModalResults1Hz = Cfg.Mod1Hz
+				runsFactory.Validate = cbValidateRunData.Checked
 
 				For Each runId As Integer In jobContainer.AddRuns(runsFactory)
 					fileWriters.Add(runId, fileWriter)
diff --git a/VectoConsole/Program.cs b/VectoConsole/Program.cs
index e415ffa02e67dc712dc255a0ed0eb909961db16e..fc9563576742c60235696c29ba7bf613dd66a71c 100644
--- a/VectoConsole/Program.cs
+++ b/VectoConsole/Program.cs
@@ -80,6 +80,7 @@ Description:
 	-1Hz: convert mod-data to 1Hz resolution
 	-eng: switch to engineering mode (implies -mod)
 	-q: quiet - disables console output unless verbose information is enabled
+	-nv: skip validation of internal data structure before simulation
 	-v: Shows verbose information (errors and warnings will be displayed)
 	-vv: Shows more verbose information (infos will be displayed)
 	-vvv: Shows debug messages (slow!)
@@ -156,7 +157,8 @@ Examples:
 				}
 
 				var fileList =
-					args.Except(new[] { "-v", "-vv", "-vvv", "-vvvv", "-V", "-mod", "-eng", "-t", "-1Hz", "-q", "-act" }).ToArray();
+					args.Except(new[] { "-v", "-vv", "-vvv", "-vvvv", "-V", "-nv", "-mod", "-eng", "-t", "-1Hz", "-q", "-act" })
+						.ToArray();
 				var jobFiles =
 					fileList.Where(
 						f =>
@@ -222,7 +224,8 @@ Examples:
 					var runsFactory = new SimulatorFactory(mode, dataProvider, fileWriter) {
 						ModalResults1Hz = args.Contains("-1Hz"),
 						WriteModalResults = args.Contains("-mod"),
-						ActualModalData = args.Contains("-act")
+						ActualModalData = args.Contains("-act"),
+						Validate = args.Contains("-nv"),
 					};
 
 					_jobContainer.AddRuns(runsFactory);
diff --git a/VectoCore/VectoCore/Models/Simulation/Impl/SimulatorFactory.cs b/VectoCore/VectoCore/Models/Simulation/Impl/SimulatorFactory.cs
index e7faef20506cb59be284fcb33f03b6dfdce0c92a..17882eb5865a76758b9f626e7846b7f19efc92e6 100644
--- a/VectoCore/VectoCore/Models/Simulation/Impl/SimulatorFactory.cs
+++ b/VectoCore/VectoCore/Models/Simulation/Impl/SimulatorFactory.cs
@@ -57,12 +57,13 @@ namespace TUGraz.VectoCore.Models.Simulation.Impl
 		private readonly bool _engineOnlyMode;
 
 		public SimulatorFactory(ExecutionMode mode, IInputDataProvider dataProvider, IOutputDataWriter writer,
-			IDeclarationReport declarationReport = null)
+			IDeclarationReport declarationReport = null, bool validate = true)
 		{
 			Log.Info("########## VectoCore Version {0} ##########", Assembly.GetExecutingAssembly().GetName().Version);
 			JobNumber = Interlocked.Increment(ref _jobNumberCounter);
 			_mode = mode;
 			ModWriter = writer;
+			Validate = validate;
 
 			int workerThreads;
 			int completionThreads;
@@ -98,6 +99,8 @@ namespace TUGraz.VectoCore.Models.Simulation.Impl
 			}
 		}
 
+		public bool Validate { get; set; }
+
 		public IVectoRunDataFactory DataReader { get; private set; }
 
 		public SummaryDataContainer SumData { get; set; }
@@ -177,13 +180,14 @@ namespace TUGraz.VectoCore.Models.Simulation.Impl
 						throw new ArgumentOutOfRangeException("CycleType unknown:" + data.Cycle.CycleType);
 				}
 
-				var validationErrors = run.Validate(_mode, data.GearboxData == null ? (GearboxType?)null : data.GearboxData.Type,
-					data.Mission != null && data.Mission.MissionType.IsEMS());
-				if (validationErrors.Any()) {
-					throw new VectoException("Validation of Run-Data Failed: " +
-											string.Join("\n", validationErrors.Select(r => r.ErrorMessage + string.Join("; ", r.MemberNames))));
+				if (Validate) {
+					var validationErrors = run.Validate(_mode, data.GearboxData == null ? (GearboxType?)null : data.GearboxData.Type,
+						data.Mission != null && data.Mission.MissionType.IsEMS());
+					if (validationErrors.Any()) {
+						throw new VectoException("Validation of Run-Data Failed: " +
+												string.Join("\n", validationErrors.Select(r => r.ErrorMessage + string.Join("; ", r.MemberNames))));
+					}
 				}
-
 				yield return run;
 			}
 		}