diff --git a/VECTO/Input Files/Vehicle.vb b/VECTO/Input Files/Vehicle.vb
index f50cc3639de2cb1631f90f69fd2faee5ec9b806f..fe41cc90754dafe8a604b00332836df6131b22a6 100644
--- a/VECTO/Input Files/Vehicle.vb	
+++ b/VECTO/Input Files/Vehicle.vb	
@@ -408,6 +408,9 @@ Public Class Vehicle
 		End Get
 	End Property
 
+	Public ReadOnly Property TransferredAirDragArea As SquareMeter Implements IAirdragDeclarationInputData.TransferredAirDragArea
+	Public ReadOnly Property AirDragArea_0 As SquareMeter Implements IAirdragDeclarationInputData.AirDragArea_0
+
 	Public ReadOnly Property IVehicleEngineeringInputData_Axles As IList(Of IAxleEngineeringInputData) _
 		Implements IAxlesEngineeringInputData.AxlesEngineering
 		Get
diff --git a/VectoCommon/VectoCommon/BusAuxiliaries/ISSMInputs.cs b/VectoCommon/VectoCommon/BusAuxiliaries/ISSMInputs.cs
index b7041cb980f89534e27d283f7f3fd8bfc6a40a6e..635fa22f1ffbf8ced19beecffa6cc65ec9067e56 100644
--- a/VectoCommon/VectoCommon/BusAuxiliaries/ISSMInputs.cs
+++ b/VectoCommon/VectoCommon/BusAuxiliaries/ISSMInputs.cs
@@ -244,15 +244,6 @@ namespace TUGraz.VectoCommon.BusAuxiliaries
 				default: return null;
 			}
 		}
-
-		public static string GetLabel(this HeatPumpType? type)
-		{
-			if (type.HasValue) {
-				return type.Value.GetLabel();
-			} else {
-				return null;
-			}
-		}
 	}