diff --git a/android/src/net/sf/openrocket/android/motor/MotorBrowserActivity.java b/android/src/net/sf/openrocket/android/motor/MotorBrowserActivity.java
index e059da133..469c712aa 100644
--- a/android/src/net/sf/openrocket/android/motor/MotorBrowserActivity.java
+++ b/android/src/net/sf/openrocket/android/motor/MotorBrowserActivity.java
@@ -3,15 +3,9 @@ package net.sf.openrocket.android.motor;
 import net.sf.openrocket.R;
 import net.sf.openrocket.android.ActivityHelpers;
 import net.sf.openrocket.android.PreferencesActivity;
-import net.sf.openrocket.android.simulation.SimulationChart;
-import net.sf.openrocket.android.simulation.SimulationFragment;
-import net.sf.openrocket.android.simulation.SimulationViewActivity;
-import net.sf.openrocket.android.thrustcurve.TCQueryActivity;
 import net.sf.openrocket.android.util.AndroidLogWrapper;
-import net.sf.openrocket.document.Simulation;
 import android.content.Intent;
 import android.os.Bundle;
-import android.support.v4.app.Fragment;
 import android.support.v4.app.FragmentActivity;
 import android.support.v4.app.FragmentTransaction;
 import android.view.Menu;