diff --git a/core/src/net/sf/openrocket/aerodynamics/barrowman/TubeCalc.java b/core/src/net/sf/openrocket/aerodynamics/barrowman/TubeCalc.java
index 2cbaaee8b..9b963407e 100644
--- a/core/src/net/sf/openrocket/aerodynamics/barrowman/TubeCalc.java
+++ b/core/src/net/sf/openrocket/aerodynamics/barrowman/TubeCalc.java
@@ -1,12 +1,10 @@
 package net.sf.openrocket.aerodynamics.barrowman;
 
-import net.sf.openrocket.aerodynamics.AerodynamicForces;
 import net.sf.openrocket.aerodynamics.FlightConditions;
 import net.sf.openrocket.aerodynamics.WarningSet;
 import net.sf.openrocket.rocketcomponent.RocketComponent;
 import net.sf.openrocket.rocketcomponent.Tube;
 import net.sf.openrocket.util.MathUtil;
-import net.sf.openrocket.util.Transformation;
 
 public abstract class TubeCalc extends RocketComponentCalc {