diff --git a/core/src/net/sf/openrocket/file/CSVExport.java b/core/src/net/sf/openrocket/file/CSVExport.java
index b8e1cc4a1..886ebc235 100644
--- a/core/src/net/sf/openrocket/file/CSVExport.java
+++ b/core/src/net/sf/openrocket/file/CSVExport.java
@@ -92,9 +92,11 @@ public class CSVExport {
 	private static void writeData(PrintWriter writer, FlightDataBranch branch,
 			FlightDataType[] fields, Unit[] units, String fieldSeparator, int decimalPlaces, boolean isExponentialNotation,
 			boolean eventComments, String commentStarter) {
+		// Time variable
+		List<Double> time = branch.get(FlightDataType.TYPE_TIME);
 
 		// Number of data points
-		int n = branch.getLength();
+		int n = time != null ? time.size() : branch.getLength();
 
 		// Flight events in occurrence order
 		List<FlightEvent> events = branch.getEvents();
@@ -102,15 +104,14 @@ public class CSVExport {
 		int eventPosition = 0;
 
 		// List of field values
-		List<List<Double>> fieldValues = new ArrayList<List<Double>>();
+		List<List<Double>> fieldValues = new ArrayList<>();
 		for (FlightDataType t : fields) {
-			fieldValues.add(branch.get(t));
+			List<Double> values = branch.get(t);
+			fieldValues.add(values);
 		}
 
-		// Time variable
-		List<Double> time = branch.get(FlightDataType.TYPE_TIME);
+		// If time information is not available, print events at beginning of file
 		if (eventComments && time == null) {
-			// If time information is not available, print events at beginning of file
 			for (FlightEvent e : events) {
 				printEvent(writer, e, commentStarter);
 			}
diff --git a/core/src/net/sf/openrocket/file/openrocket/OpenRocketSaver.java b/core/src/net/sf/openrocket/file/openrocket/OpenRocketSaver.java
index 9169348c6..048db84c4 100644
--- a/core/src/net/sf/openrocket/file/openrocket/OpenRocketSaver.java
+++ b/core/src/net/sf/openrocket/file/openrocket/OpenRocketSaver.java
@@ -216,21 +216,22 @@ public class OpenRocketSaver extends RocketSaver {
 		/*
 		 * NOTE:  Remember to update the supported versions in DocumentConfig as well!
 		 * 
-		 * File version 1.8 is required for:
+		 * File version 1.9 is required for:
 		 *  - new-style positioning
 		 *  - external/parallel booster stages
 		 *  - external pods
 		 *  - Rail Buttons
+		 *  - Flight event source saving
 		 *  
-		 * Otherwise use version 1.8.
+		 * Otherwise use version 1.9.
 		 */
 		
 		/////////////////
-		// Version 1.8 // 
+		// Version 1.9 //
 		/////////////////
 		// for any new-style positioning:  'axialoffset', 'angleoffset', 'radiusoffset' tags
 		// these tags are used for any RocketComponent child classes positioning... so... ALL the classes.
-		return FILE_VERSION_DIVISOR + 8;
+		return FILE_VERSION_DIVISOR + 9;
 		
 	}
 	
@@ -531,8 +532,13 @@ public class OpenRocketSaver extends RocketSaver {
 		
 		// Write events
 		for (FlightEvent event : branch.getEvents()) {
-			writeln("<event time=\"" + TextUtil.doubleToString(event.getTime())
-					+ "\" type=\"" + enumToXMLName(event.getType()) + "\"/>");
+			String eventStr = "<event time=\"" + TextUtil.doubleToString(event.getTime())
+					+ "\" type=\"" + enumToXMLName(event.getType());
+			if (event.getSource() != null) {
+				eventStr += "\" source=\"" + TextUtil.escapeXML(event.getSource().getID());
+			}
+			eventStr += "\"/>";
+			writeln(eventStr);
 		}
 		
 		// Write the data
diff --git a/core/src/net/sf/openrocket/file/openrocket/importt/DocumentConfig.java b/core/src/net/sf/openrocket/file/openrocket/importt/DocumentConfig.java
index 82428f119..6995c8210 100644
--- a/core/src/net/sf/openrocket/file/openrocket/importt/DocumentConfig.java
+++ b/core/src/net/sf/openrocket/file/openrocket/importt/DocumentConfig.java
@@ -52,7 +52,7 @@ import net.sf.openrocket.util.Reflection;
 class DocumentConfig {
 	
 	/* Remember to update OpenRocketSaver as well! */
-	public static final String[] SUPPORTED_VERSIONS = { "1.0", "1.1", "1.2", "1.3", "1.4", "1.5", "1.6", "1.7", "1.8" };
+	public static final String[] SUPPORTED_VERSIONS = { "1.0", "1.1", "1.2", "1.3", "1.4", "1.5", "1.6", "1.7", "1.8", "1.9" };
 	
 	/**
 	 * Divisor used in converting an integer version to the point-represented version.
@@ -113,6 +113,8 @@ class DocumentConfig {
 		// RocketComponent
 		setters.put("RocketComponent:name", new StringSetter(
 				Reflection.findMethod(RocketComponent.class, "setName", String.class)));
+		setters.put("RocketComponent:id", new StringSetter(
+				Reflection.findMethod(RocketComponent.class, "setID", String.class)));
 		setters.put("RocketComponent:color", new ColorSetter(
 				Reflection.findMethod(RocketComponent.class, "setColor", Color.class)));
 		setters.put("RocketComponent:linestyle", new EnumSetter<LineStyle>(
diff --git a/core/src/net/sf/openrocket/file/openrocket/importt/FlightDataBranchHandler.java b/core/src/net/sf/openrocket/file/openrocket/importt/FlightDataBranchHandler.java
index d44303c9b..9641f13d6 100644
--- a/core/src/net/sf/openrocket/file/openrocket/importt/FlightDataBranchHandler.java
+++ b/core/src/net/sf/openrocket/file/openrocket/importt/FlightDataBranchHandler.java
@@ -8,6 +8,8 @@ import net.sf.openrocket.file.simplesax.AbstractElementHandler;
 import net.sf.openrocket.file.simplesax.ElementHandler;
 import net.sf.openrocket.file.simplesax.PlainTextHandler;
 import net.sf.openrocket.l10n.Translator;
+import net.sf.openrocket.rocketcomponent.Rocket;
+import net.sf.openrocket.rocketcomponent.RocketComponent;
 import net.sf.openrocket.simulation.FlightDataBranch;
 import net.sf.openrocket.simulation.FlightDataType;
 import net.sf.openrocket.simulation.FlightEvent;
@@ -126,6 +128,8 @@ class FlightDataBranchHandler extends AbstractElementHandler {
 		if (element.equals("event")) {
 			double time;
 			FlightEvent.Type type;
+			String sourceID;
+			RocketComponent source = null;
 			
 			try {
 				time = DocumentConfig.stringToDouble(attributes.get("time"));
@@ -139,8 +143,15 @@ class FlightDataBranchHandler extends AbstractElementHandler {
 				warnings.add("Illegal event specification, ignoring.");
 				return;
 			}
+
+			// Get the event source
+			Rocket rocket = context.getOpenRocketDocument().getRocket();
+			sourceID = attributes.get("source");
+			if (sourceID != null) {
+				source = rocket.findComponent(sourceID);
+			}
 			
-			branch.addEvent(new FlightEvent(type, time));
+			branch.addEvent(new FlightEvent(type, time, source));
 			return;
 		}
 		
diff --git a/core/src/net/sf/openrocket/file/openrocket/savers/RocketComponentSaver.java b/core/src/net/sf/openrocket/file/openrocket/savers/RocketComponentSaver.java
index 04d031cd9..0bc98071c 100644
--- a/core/src/net/sf/openrocket/file/openrocket/savers/RocketComponentSaver.java
+++ b/core/src/net/sf/openrocket/file/openrocket/savers/RocketComponentSaver.java
@@ -36,6 +36,7 @@ public class RocketComponentSaver {
 	
 	protected void addParams(net.sf.openrocket.rocketcomponent.RocketComponent c, List<String> elements) {
 		elements.add("<name>" + TextUtil.escapeXML(c.getName()) + "</name>");
+		elements.add("<id>" + TextUtil.escapeXML(c.getID()) + "</id>");
 		
 		ComponentPreset preset = c.getPresetComponent();
 		if (preset != null) {
diff --git a/core/src/net/sf/openrocket/rocketcomponent/RocketComponent.java b/core/src/net/sf/openrocket/rocketcomponent/RocketComponent.java
index cee08ffee..46bb50035 100644
--- a/core/src/net/sf/openrocket/rocketcomponent/RocketComponent.java
+++ b/core/src/net/sf/openrocket/rocketcomponent/RocketComponent.java
@@ -1282,8 +1282,16 @@ public abstract class RocketComponent implements ChangeSource, Cloneable, Iterab
 		mutex.verify();
 		this.id = UniqueID.uuid();
 	}
-	
-	
+
+	/**
+	 * Set the ID for this component.
+	 * Generally not recommended to directly set the ID, this is done automatically. Only use this in case you have to.
+	 * @param newID new ID
+	 */
+	public void setID(String newID) {
+		mutex.verify();
+		this.id = newID;
+	}
 	
 	
 	/**
@@ -2047,6 +2055,16 @@ public abstract class RocketComponent implements ChangeSource, Cloneable, Iterab
 		}
 		return children;
 	}
+
+	/**
+	 * Checks whether this component contains <component> as one of its (sub-)children.
+	 * @param component component to check
+	 * @return true if component is a (sub-)child of this component
+	 */
+	public final boolean containsChild(RocketComponent component) {
+		List<RocketComponent> allChildren = getAllChildren();
+		return allChildren.contains(component);
+	}
 	
 	
 	/**
diff --git a/core/src/net/sf/openrocket/simulation/BasicEventSimulationEngine.java b/core/src/net/sf/openrocket/simulation/BasicEventSimulationEngine.java
index ffdb3c2fa..be9fd8bc6 100644
--- a/core/src/net/sf/openrocket/simulation/BasicEventSimulationEngine.java
+++ b/core/src/net/sf/openrocket/simulation/BasicEventSimulationEngine.java
@@ -489,7 +489,7 @@ public class BasicEventSimulationEngine implements SimulationEngine {
 					SimulationStatus boosterStatus = new SimulationStatus(currentStatus);
 					
 					// Prepare the new simulation branch
-					boosterStatus.setFlightData(new FlightDataBranch(boosterStage.getName(), currentStatus.getFlightData()));
+					boosterStatus.setFlightData(new FlightDataBranch(boosterStage.getName(), boosterStage, currentStatus.getFlightData()));
 					boosterStatus.getFlightData().addEvent(event);
 
 					// Mark the current status as having dropped the current stage and all stages below it
diff --git a/core/src/net/sf/openrocket/simulation/FlightData.java b/core/src/net/sf/openrocket/simulation/FlightData.java
index 7a559b3f2..5d6f62017 100644
--- a/core/src/net/sf/openrocket/simulation/FlightData.java
+++ b/core/src/net/sf/openrocket/simulation/FlightData.java
@@ -134,8 +134,12 @@ public class FlightData {
 		return branches.size();
 	}
 	
-	public FlightDataBranch getBranch(int n) {
-		return branches.get(n);
+	public FlightDataBranch getBranch(int stageNr) {
+		return branches.get(stageNr);
+	}
+
+	public int getStageNr(FlightDataBranch branch) {
+		return branches.indexOf(branch);
 	}
 
 	public List<FlightDataBranch> getBranches() {
diff --git a/core/src/net/sf/openrocket/simulation/FlightDataBranch.java b/core/src/net/sf/openrocket/simulation/FlightDataBranch.java
index e2547e4c4..395c96343 100644
--- a/core/src/net/sf/openrocket/simulation/FlightDataBranch.java
+++ b/core/src/net/sf/openrocket/simulation/FlightDataBranch.java
@@ -6,6 +6,9 @@ import java.util.LinkedHashMap;
 import java.util.List;
 import java.util.Map;
 
+import net.sf.openrocket.rocketcomponent.AxialStage;
+import net.sf.openrocket.rocketcomponent.Rocket;
+import net.sf.openrocket.rocketcomponent.RocketComponent;
 import net.sf.openrocket.util.ArrayList;
 import net.sf.openrocket.util.Monitorable;
 import net.sf.openrocket.util.Mutable;
@@ -30,11 +33,10 @@ public class FlightDataBranch implements Monitorable {
 	/** The name of this flight data branch. */
 	private final String branchName;
 	
-	private final Map<FlightDataType, ArrayList<Double>> values =
-			new LinkedHashMap<FlightDataType, ArrayList<Double>>();
+	private final Map<FlightDataType, ArrayList<Double>> values = new LinkedHashMap<>();
 	
-	private final Map<FlightDataType, Double> maxValues = new HashMap<FlightDataType, Double>();
-	private final Map<FlightDataType, Double> minValues = new HashMap<FlightDataType, Double>();
+	private final Map<FlightDataType, Double> maxValues = new HashMap<>();
+	private final Map<FlightDataType, Double> minValues = new HashMap<>();
 	
 	/**
 	 * time for the rocket to reach apogee if the flight had been no recovery deployment
@@ -77,23 +79,19 @@ public class FlightDataBranch implements Monitorable {
 	}
 
 	/**
-	 * Make a flight data branch with one data point copied from its parent.  Intended for use
+	 * Make a flight data branch with all data points copied from its parent.  Intended for use
 	 * when creating a new branch upon stage separation, so the data at separation is present
 	 * in both branches (and if the new branch has an immediate exception, it can be plotted)
+	 *
+	 * @param branchName		the name of the new branch.
+	 * @param srcComponent		the component that is the source of the new branch.
+	 * @param parent			the parent branch to copy data from.
 	 */
-	public FlightDataBranch(String branchName, FlightDataBranch parent) {
+	public FlightDataBranch(String branchName, RocketComponent srcComponent, FlightDataBranch parent) {
 		this.branchName = branchName;
 
-		// need to have at least one type to set up values
-		values.put(FlightDataType.TYPE_TIME, new ArrayList<Double>());
-		minValues.put(FlightDataType.TYPE_TIME, Double.NaN);
-		maxValues.put(FlightDataType.TYPE_TIME, Double.NaN);
-
-		// copy all values into new FlightDataBranch
-		this.addPoint();
-		for (FlightDataType t : parent.getTypes()) {
-			this.setValue(t, parent.getLast(t));
-		}
+		// Copy all the values from the parent
+		copyValuesFromBranch(parent, srcComponent);
 	}
 	
 	/**
@@ -115,12 +113,27 @@ public class FlightDataBranch implements Monitorable {
 	public void addPoint() {
 		mutable.check();
 		
-		for (FlightDataType t : values.keySet()) {
-			values.get(t).add(Double.NaN);
+		for (FlightDataType type : values.keySet()) {
+			sanityCheckValues(type, Double.NaN);
+			values.get(type).add(Double.NaN);
 		}
 		modID++;
 	}
-	
+
+	private void sanityCheckValues(FlightDataType type, Double value) {
+		ArrayList<Double> list = values.get(type);
+
+		if (list == null) {
+			list = new ArrayList<>();
+			int n = getLength();
+			for (int i = 0; i < n; i++) {
+				list.add(Double.NaN);
+			}
+			values.put(type, list);
+			minValues.put(type, value);
+			maxValues.put(type, value);
+		}
+	}
 	
 	/**
 	 * Set the value for a specific data type at the latest point.  New variable types can be
@@ -132,20 +145,10 @@ public class FlightDataBranch implements Monitorable {
 	 */
 	public void setValue(FlightDataType type, double value) {
 		mutable.check();
-		
+
+		sanityCheckValues(type, value);
 		ArrayList<Double> list = values.get(type);
 		
-		if (list == null) {
-			list = new ArrayList<Double>();
-			int n = getLength();
-			for (int i = 0; i < n; i++) {
-				list.add(Double.NaN);
-			}
-			values.put(type, list);
-			minValues.put(type, value);
-			maxValues.put(type, value);
-		}
-		
 		if (list.size() > 0) {
 			list.set(list.size() - 1, value);
 		}
@@ -161,7 +164,68 @@ public class FlightDataBranch implements Monitorable {
 		}
 		modID++;
 	}
-	
+
+	/**
+	 * Clears all the current values in the branch and copies the values from the given branch.
+	 * @param srcBranch 	the branch to copy values from
+	 * @param srcComponent 	the component that is the source of this branch (used for copying events)
+	 */
+	private void copyValuesFromBranch(FlightDataBranch srcBranch, RocketComponent srcComponent) {
+		this.values.clear();
+
+		// Need to have at least one type to set up values
+		values.put(FlightDataType.TYPE_TIME, new ArrayList<>());
+		minValues.put(FlightDataType.TYPE_TIME, Double.NaN);
+		maxValues.put(FlightDataType.TYPE_TIME, Double.NaN);
+
+		if (srcBranch == null) {
+			return;
+		}
+
+		// Copy flight data
+		for (int i = 0; i < srcBranch.getLength(); i++) {
+			this.addPoint();
+			for (FlightDataType type : srcBranch.getTypes()) {
+				this.setValue(type, srcBranch.getByIndex(type, i));
+			}
+		}
+
+		// Copy flight events belonging to this branch
+		List<FlightEvent> sustainerEvents = srcBranch.getEvents();
+		for (FlightEvent event : sustainerEvents) {
+			// Stage separation is already added elsewhere, so don't copy it over (otherwise you have a duplicate)
+			if (event.getType() == FlightEvent.Type.STAGE_SEPARATION) {
+				continue;
+			}
+			RocketComponent srcEventComponent = event.getSource();
+			// Ignore null events
+			if (srcComponent == null || srcEventComponent == null) {
+				continue;
+			}
+			// Ignore events from other stages. Important for when the current stage has a booster stage; we don't want to copy over the booster events.
+			if (getStageForComponent(srcComponent) != getStageForComponent(srcEventComponent)) {
+				continue;
+			}
+			if (srcComponent == srcEventComponent || srcComponent.containsChild(srcEventComponent)) {
+				events.add(event);
+			}
+		}
+	}
+
+	/**
+	 * A safer method for checking the stage of a component (that shouldn't throw exceptions when calling on stages/rockets)
+	 * @param component 	the component to get the stage of
+	 * @return the stage of the component, or null if the component is a rocket
+	 */
+	private AxialStage getStageForComponent(RocketComponent component) {
+		if (component instanceof AxialStage) {
+			return (AxialStage) component;
+		} else if (component instanceof Rocket) {
+			return null;
+		} else {
+			return component.getStage();
+		}
+	}
 	
 	/**
 	 * Return the branch name.
@@ -203,6 +267,23 @@ public class FlightDataBranch implements Monitorable {
 			return null;
 		return list.clone();
 	}
+
+	/**
+	 * Return the value of the specified type at the specified index.
+	 * @param type the variable type
+	 * @param index the data index of the value
+	 * @return the value at the specified index
+	 */
+	public Double getByIndex(FlightDataType type, int index) {
+		if (index < 0 || index >= getLength()) {
+			throw new IllegalArgumentException("Index out of bounds");
+		}
+		ArrayList<Double> list = values.get(type);
+		if (list == null) {
+			return null;
+		}
+		return list.get(index);
+	}
 	
 	/**
 	 * Return the last value of the specified type in the branch, or NaN if the type is
diff --git a/core/test/net/sf/openrocket/file/openrocket/OpenRocketSaverTest.java b/core/test/net/sf/openrocket/file/openrocket/OpenRocketSaverTest.java
index 0eae42619..d7ccef0fb 100644
--- a/core/test/net/sf/openrocket/file/openrocket/OpenRocketSaverTest.java
+++ b/core/test/net/sf/openrocket/file/openrocket/OpenRocketSaverTest.java
@@ -331,9 +331,9 @@ public class OpenRocketSaverTest {
 	////////////////////////////////
 	
 	@Test
-	public void testFileVersion108_withSimulationExtension() {
+	public void testFileVersion109_withSimulationExtension() {
 		OpenRocketDocument rocketDoc = TestRockets.makeTestRocket_v107_withSimulationExtension(SIMULATION_EXTENSION_SCRIPT);
-		assertEquals(108, getCalculatedFileVersion(rocketDoc));
+		assertEquals(109, getCalculatedFileVersion(rocketDoc));
 	}
 	
 
diff --git a/core/test/net/sf/openrocket/simulation/FlightEventsTest.java b/core/test/net/sf/openrocket/simulation/FlightEventsTest.java
index e4fa4d305..5340eefc0 100644
--- a/core/test/net/sf/openrocket/simulation/FlightEventsTest.java
+++ b/core/test/net/sf/openrocket/simulation/FlightEventsTest.java
@@ -108,8 +108,8 @@ public class FlightEventsTest extends BaseTestCase {
 		// events whose time is too variable to check are given a time of 1200
         for (int b = 0; b < 3; b++) {
 			FlightEvent[] expectedEvents;
-            final RocketComponent[] expectedSources;
             switch (b) {
+                // Sustainer (payload fairing stage)
                 case 0:
 					expectedEvents = new FlightEvent[] {
 						new FlightEvent(FlightEvent.Type.LAUNCH, 0.0, rocket),
@@ -129,15 +129,23 @@ public class FlightEventsTest extends BaseTestCase {
 						new FlightEvent(FlightEvent.Type.SIMULATION_END, 1200, null)
 					};
                     break;
+                // Core stage
                 case 1:
 					expectedEvents = new FlightEvent[] {
+                        new FlightEvent(FlightEvent.Type.IGNITION, 0.0, coreBody),
+                        new FlightEvent(FlightEvent.Type.BURNOUT, 2.0, coreBody),
+                        new FlightEvent(FlightEvent.Type.EJECTION_CHARGE, 2.0, coreStage),
 						new FlightEvent(FlightEvent.Type.STAGE_SEPARATION, 2.0, coreStage),
 						new FlightEvent(FlightEvent.Type.GROUND_HIT, 1200, null),
 						new FlightEvent(FlightEvent.Type.SIMULATION_END, 1200, null)
 					};
                     break;
+                // Booster stage
                 case 2:
 					expectedEvents = new FlightEvent[] {
+                        new FlightEvent(FlightEvent.Type.IGNITION, 0.0, boosterMotorTubes),
+                        new FlightEvent(FlightEvent.Type.BURNOUT, 2.0, boosterMotorTubes),
+                        new FlightEvent(FlightEvent.Type.EJECTION_CHARGE, 2.0, boosterStage),
 						new FlightEvent(FlightEvent.Type.STAGE_SEPARATION, 2.0, boosterStage),
 						new FlightEvent(FlightEvent.Type.TUMBLE, 3.551, null),
 						new FlightEvent(FlightEvent.Type.GROUND_HIT, 1200, null),
@@ -150,10 +158,7 @@ public class FlightEventsTest extends BaseTestCase {
 
             // Test event count
             final FlightDataBranch branch = sim.getSimulatedData().getBranch(b);
-			final FlightEvent[] events = (FlightEvent[]) branch.getEvents().toArray(new FlightEvent[0]);
-			for (int i = 0; i < events.length; i++) {
-				System.out.println("branch " + b + " index " + i + " event " + events[i]);
-			}
+			final FlightEvent[] events = branch.getEvents().toArray(new FlightEvent[0]);
             assertEquals(" Multi-stage simulation, branch " + b + " invalid number of events ", expectedEvents.length, events.length);
 
 			// Test that all expected events are present, in the right order, at the right time, from the right sources
diff --git a/fileformat.txt b/fileformat.txt
index dafe8745a..aa3093182 100644
--- a/fileformat.txt
+++ b/fileformat.txt
@@ -63,3 +63,6 @@ The following file format versions exist:
       Rename <fincount> to <instancecount> (<fincount> remains for backward compatibility)
       Rename <position> to <axialoffset> (<position> remains for backward compatibility)
       Rename <rotation> to <angleoffset> (<rotation> remains for backward compatibility)
+
+1.9:  Introduced with OpenRocket 23.xx.
+      Added ID for each rocket component, to in turn add this ID as a source for flight events.
\ No newline at end of file
diff --git a/swing/src/net/sf/openrocket/gui/plot/SimulationPlot.java b/swing/src/net/sf/openrocket/gui/plot/SimulationPlot.java
index 57f45c09c..e30b01646 100644
--- a/swing/src/net/sf/openrocket/gui/plot/SimulationPlot.java
+++ b/swing/src/net/sf/openrocket/gui/plot/SimulationPlot.java
@@ -192,9 +192,8 @@ public class SimulationPlot {
 				}
 				data[axis].addSeries(series);
 			}
-			// For each of the secondary branches, we use data from branch 0 for the earlier times
+			// Secondary branches
 			for (int branchIndex = 1; branchIndex < branchCount; branchIndex++) {
-				FlightDataBranch primaryBranch = simulation.getSimulatedData().getBranch(0);
 				FlightDataBranch thisBranch = simulation.getSimulatedData().getBranch(branchIndex);
 
 				// Ignore empty branches
@@ -206,25 +205,10 @@ public class SimulationPlot {
 					continue;
 				}
 
-				// Get first time index used in secondary branch;
-				double firstSampleTime = thisBranch.get(FlightDataType.TYPE_TIME).get(0);
-
 				XYSeries series = new XYSeries(seriesCount++, false, true);
 				series.setDescription(thisBranch.getBranchName() + ": " + name);
 
-				// Copy the first points from the primaryBranch.
-				List<Double> primaryT = primaryBranch.get(FlightDataType.TYPE_TIME);
-				List<Double> primaryx = primaryBranch.get(domainType);
-				List<Double> primaryy = primaryBranch.get(type);
-
-				for (int j = 0; j < primaryT.size(); j++) {
-					if (primaryT.get(j) >= firstSampleTime) {
-						break;
-					}
-					series.add(domainUnit.toUnit(primaryx.get(j)), unit.toUnit(primaryy.get(j)));
-				}
-
-				// Now copy all the data from the secondary branch
+				// Copy all the data from the secondary branch
 				List<Double> plotx = thisBranch.get(domainType);
 				List<Double> ploty = thisBranch.get(type);