diff --git a/android/res/values/strings.xml b/android/res/values/strings.xml
index ea51d22e5..371d2b97c 100644
--- a/android/res/values/strings.xml
+++ b/android/res/values/strings.xml
@@ -13,6 +13,8 @@
     <string name="configurePlot">Change Plot</string>
     <string name="view_events">View Events</string>
     <string name="simulationPlotDialogTitle">Select Series And Events</string>
+    <string name="DeleteConfigTitle">Delete Motor Configuration</string>
+    
     <string name="plot">Plot</string>
     <string name="saving">Saving file…</string>
     <string name="loading">Loading file…</string>
diff --git a/android/src/net/sf/openrocket/android/CurrentRocket.java b/android/src/net/sf/openrocket/android/CurrentRocket.java
index 17e2929a0..f4b7861e2 100644
--- a/android/src/net/sf/openrocket/android/CurrentRocket.java
+++ b/android/src/net/sf/openrocket/android/CurrentRocket.java
@@ -95,6 +95,11 @@ public class CurrentRocket {
 		return configId;
 	}
 	
+	public synchronized void deleteMotorConfig( Context context, String config ) {
+		rocketDocument.getRocket().removeMotorConfigurationID(config);
+		notifyMotorConfigChanged(context);
+	}
+	
 	/**
 	 * @param rocketDocument the rocketDocument to set
 	 */
diff --git a/android/src/net/sf/openrocket/android/events/ChangeEventBroadcastReceiver.java b/android/src/net/sf/openrocket/android/events/ChangeEventBroadcastReceiver.java
index 55543eb52..69da6251d 100644
--- a/android/src/net/sf/openrocket/android/events/ChangeEventBroadcastReceiver.java
+++ b/android/src/net/sf/openrocket/android/events/ChangeEventBroadcastReceiver.java
@@ -24,6 +24,7 @@ public abstract class ChangeEventBroadcastReceiver extends BroadcastReceiver {
 		switch( type ) {
 		case Events.CONFIGS_CHANGED:
 			doMotorConfigsChanged();
+			doSimsChanged();
 			break;
 		case Events.SIMS_CHANGED:
 			doSimsChanged();
diff --git a/android/src/net/sf/openrocket/android/rocket/Configurations.java b/android/src/net/sf/openrocket/android/rocket/Configurations.java
index b588413ac..9f381de03 100644
--- a/android/src/net/sf/openrocket/android/rocket/Configurations.java
+++ b/android/src/net/sf/openrocket/android/rocket/Configurations.java
@@ -15,6 +15,9 @@ import net.sf.openrocket.motor.Motor;
 import net.sf.openrocket.rocketcomponent.MotorMount;
 import net.sf.openrocket.rocketcomponent.RocketComponent;
 import net.sf.openrocket.unit.UnitGroup;
+import android.app.AlertDialog;
+import android.app.Dialog;
+import android.content.DialogInterface;
 import android.os.Bundle;
 import android.support.v4.app.FragmentTransaction;
 import android.view.LayoutInflater;
@@ -23,6 +26,7 @@ import android.view.ViewGroup;
 import android.widget.BaseExpandableListAdapter;
 import android.widget.Button;
 import android.widget.ExpandableListAdapter;
+import android.widget.ListView;
 import android.widget.TextView;
 
 import com.actionbarsherlock.view.Menu;
@@ -73,6 +77,10 @@ public class Configurations extends ExpandableListFragment {
 		CurrentRocketHolder.getCurrentRocket().addNewMotorConfig(getActivity());
 	}
 	
+	private void removeConfiguration( String config ) {
+		CurrentRocketHolder.getCurrentRocket().deleteMotorConfig( getActivity(), config );
+	}
+	
 	private static class MotorMountInfo {
 
 		private RocketComponent mmt;
@@ -172,11 +180,11 @@ public class Configurations extends ExpandableListFragment {
 			}
 
 			@Override
-			public View getGroupView(int groupPosition, boolean isExpanded,
-					View convertView, ViewGroup parent) {
+			public View getGroupView(int groupPosition, boolean isExpanded,	View convertView, ViewGroup parent) {
 				if ( convertView == null ) {
 					convertView = getActivity().getLayoutInflater().inflate(android.R.layout.simple_expandable_list_item_1,null);
 				}
+
 				String configDescription = rocketDocument.getRocket().getMotorConfigurationNameOrDescription((String) getGroup(groupPosition));
 				((TextView)convertView.findViewById(android.R.id.text1)).setText( configDescription );
 				return convertView;
@@ -222,9 +230,7 @@ public class Configurations extends ExpandableListFragment {
 			}
 
 			@Override
-			public boolean isChildSelectable(int groupPosition,
-					int childPosition) {
-				// TODO Auto-generated method stub
+			public boolean isChildSelectable(int groupPosition,	int childPosition) {
 				return false;
 			}
 
@@ -233,6 +239,34 @@ public class Configurations extends ExpandableListFragment {
 		setListAdapter(configurationAdapter);
 	}
 
+	@Override
+	public boolean onListItemLongClick(ListView l, View v, int position, long id) {
+		
+		Object o = getExpandableListAdapter().getGroup(position);
+		
+		if ( o == null || ! (o instanceof String) ) {
+			return false;
+		}
+		final String motorConfigId = (String)o;
+		
+		AlertDialog.Builder b = new AlertDialog.Builder( getActivity() );
+		b.setTitle(R.string.DeleteConfigTitle);
+		b.setCancelable(true);
+		b.setPositiveButton(R.string.Delete, new DialogInterface.OnClickListener() {
+			@Override
+			public void onClick(DialogInterface dialog, int which) {
+				Configurations.this.removeConfiguration(motorConfigId);
+			}
+			
+		});
+		
+		Dialog dialog = b.create();
+		
+		dialog.setCanceledOnTouchOutside(true);
+		dialog.show();
+		return true;
+	}
+
 	private class MotorWizardOnClickListener implements View.OnClickListener {
 		@Override
 		public void onClick(View v) {
diff --git a/android/src/net/sf/openrocket/android/util/ExpandableListFragment.java b/android/src/net/sf/openrocket/android/util/ExpandableListFragment.java
index 00ed6d5fc..4fab12462 100644
--- a/android/src/net/sf/openrocket/android/util/ExpandableListFragment.java
+++ b/android/src/net/sf/openrocket/android/util/ExpandableListFragment.java
@@ -51,6 +51,14 @@ ExpandableListView.OnGroupCollapseListener, ExpandableListView.OnGroupExpandList
 			onListItemClick((ListView) parent, v, position, id);
 		}
 	};
+	
+	final private AdapterView.OnItemLongClickListener mOnLongClickListener = new AdapterView.OnItemLongClickListener() {
+		@Override
+		public boolean onItemLongClick(AdapterView<?> parent, View view, int position, long id) {
+			return onListItemLongClick( (ListView) parent, view, position, id);
+		}
+		
+	};
 
 	ExpandableListAdapter mAdapter;
 	ExpandableListView mList;
@@ -135,6 +143,10 @@ ExpandableListView.OnGroupCollapseListener, ExpandableListView.OnGroupExpandList
 	public void onListItemClick(ListView l, View v, int position, long id) {
 	}
 
+	public boolean onListItemLongClick(ListView l, View v, int position, long id ) {
+		return false;
+	}
+	
 	/** Provide the cursor for the list view. */
 	public void setListAdapter(ExpandableListAdapter adapter) {
 		boolean hadAdapter = mAdapter != null;
@@ -283,6 +295,7 @@ ExpandableListView.OnGroupCollapseListener, ExpandableListView.OnGroupExpandList
 		}
 		mListShown = true;
 		mList.setOnItemClickListener(mOnClickListener);
+		mList.setOnItemLongClickListener(mOnLongClickListener);
 		if (mAdapter != null) {
 			setListAdapter(mAdapter);
 		} else {