diff --git a/src/main/java/seng302/models/BoatGroup.java b/src/main/java/seng302/models/BoatGroup.java
index ef739ae5..693087e1 100644
--- a/src/main/java/seng302/models/BoatGroup.java
+++ b/src/main/java/seng302/models/BoatGroup.java
@@ -179,10 +179,10 @@ public class BoatGroup extends RaceObject{
      * @param rotation Rotation to move graphics to.
      * @param raceIds RaceID of the object to move.
      */
-    public void setDestination (double newXValue, double newYValue, double rotation, double speed, int... raceIds) {
+    public void setDestination (double newXValue, double newYValue, double rotation, double groundSpeed, int... raceIds) {
         if (hasRaceId(raceIds)) {
             destinationSet = true;
-            boat.setVelocity(speed);
+            boat.setVelocity(groundSpeed);
             if (currentRotation < 0)
                 currentRotation = 360 - currentRotation;
             double dx = newXValue - boatPoly.getLayoutX();
@@ -226,7 +226,7 @@ public class BoatGroup extends RaceObject{
         }
     }
 
-    public void setDestination (double newXValue, double newYValue, double speed, int... raceIDs) {
+    public void setDestination (double newXValue, double newYValue, double groundSpeed, int... raceIDs) {
         destinationSet = true;
 
         if (hasRaceId(raceIDs)) {
@@ -237,7 +237,7 @@ public class BoatGroup extends RaceObject{
                             )
                     )
             );
-            setDestination(newXValue, newYValue, rotation, speed, raceIDs);
+            setDestination(newXValue, newYValue, rotation, groundSpeed, raceIDs);
         }
     }
 
diff --git a/src/main/java/seng302/models/RaceObject.java b/src/main/java/seng302/models/RaceObject.java
index bc061584..91f02971 100644
--- a/src/main/java/seng302/models/RaceObject.java
+++ b/src/main/java/seng302/models/RaceObject.java
@@ -61,7 +61,7 @@ public abstract class RaceObject extends Group {
      * @param rotation Rotation to move graphics to.
      * @param raceIds RaceID of the object to move.
      */
-    public abstract void setDestination (double x, double y, double rotation, double speed, int... raceIds);
+    public abstract void setDestination (double x, double y, double rotation, double groundSpeed, int... raceIds);
     /**
      * Sets the destination of everything within the RaceObject that has an ID in the array raceIds. The destination is
      * set to the co-ordinates (x, y).
@@ -69,7 +69,7 @@ public abstract class RaceObject extends Group {
      * @param y Y co-ordinate to move the graphic to.
      * @param raceIds RaceID to the object to move.
      */
-    public abstract void setDestination (double x, double y, double speed, int... raceIds);
+    public abstract void setDestination (double x, double y, double groundSpeed, int... raceIds);
 
     public abstract void updatePosition (long timeInterval);
 
diff --git a/src/main/java/seng302/models/mark/MarkGroup.java b/src/main/java/seng302/models/mark/MarkGroup.java
index 16a1e06a..79b1759f 100644
--- a/src/main/java/seng302/models/mark/MarkGroup.java
+++ b/src/main/java/seng302/models/mark/MarkGroup.java
@@ -102,13 +102,13 @@ public class MarkGroup extends RaceObject {
         //moveTo(points[0].getX(), points[0].getY());
     }
 
-    public void setDestination (double x, double y, double rotation, double speed, int... raceIds) {
+    public void setDestination (double x, double y, double rotation, double groundSpeed, int... raceIds) {
         setDestination(x, y, 0, raceIds);
         this.rotationalGoal = rotation;
         calculateRotationalVelocity();
     }
 
-    public void setDestination (double x, double y, double speed, int... raceIds) {
+    public void setDestination (double x, double y, double groundSpeed, int... raceIds) {
         for (int i = 0; i < marks.size(); i++)
             for (int id : raceIds)
                 if (id == marks.get(i).getId())
diff --git a/src/main/java/seng302/models/parsers/StreamParser.java b/src/main/java/seng302/models/parsers/StreamParser.java
index dc42963f..e2efd773 100644
--- a/src/main/java/seng302/models/parsers/StreamParser.java
+++ b/src/main/java/seng302/models/parsers/StreamParser.java
@@ -26,6 +26,7 @@ import java.util.concurrent.PriorityBlockingQueue;
  * and parsed in by turning the byte arrays into useful data. There are two public static hashmaps
  * that are threadsafe so the visualiser can always access the latest speed and position available
  * Created by kre39 on 23/04/17.
+ *
  */
 public class StreamParser extends Thread{
 
@@ -39,6 +40,11 @@ public class StreamParser extends Thread{
      private static long timeSinceStart = -1;
      private static List<Boat> boats = new ArrayList<>();
 
+    /**
+     * Used to initialise the thread name and stream parser object so a thread can be executed
+     *
+     * @param threadName name of the thread
+     */
      public StreamParser(String threadName){
          this.threadName = threadName;
      }
@@ -46,6 +52,7 @@ public class StreamParser extends Thread{
     /**
      * Used to within threading so when the stream parser thread runs, it will keep looking for a packet to
      * process until it is unable to find anymore packets
+     *
      */
     public void run(){
          try {
@@ -83,6 +90,7 @@ public class StreamParser extends Thread{
 
     /**
      * Used to start the stream parser thread when multithreading
+     *
      */
     public void start () {
         System.out.println("Starting " +  threadName );
@@ -92,6 +100,12 @@ public class StreamParser extends Thread{
         }
     }
 
+    /**
+     * Looks at the type of the packet then sends it to the appropriate parser to extract the
+     * specific data associated with that packet type
+     *
+     * @param packet the packet to be looked at
+     */
      private static void parsePacket(StreamPacket packet) {
         switch (packet.getType()){
             case HEARTBEAT:
@@ -138,6 +152,7 @@ public class StreamParser extends Thread{
 
     /**
      * Extracts the seq num used in the heartbeat packet
+     *
      * @param packet Packet parsed in to use the payload
      */
     private static void extractHeartBeat(StreamPacket packet) {
@@ -148,6 +163,7 @@ public class StreamParser extends Thread{
      * Extracts the useful race status data from race status type packets. This method will also print to the
      * console the current state of the race (if it has started/finished or is about to start), along side
      * this it'll also display the amount of time since the race has started or time till it starts
+     *
      * @param packet Packet parsed in to use the payload
      */
     private static void extractRaceStatus(StreamPacket packet){
@@ -196,6 +212,7 @@ public class StreamParser extends Thread{
 
     /**
      * Used to extract the messages passed through with the display message packet
+     *
      * @param packet Packet parsed in to use the payload
      */
     private static void extractDisplayMessage(StreamPacket packet){
@@ -214,6 +231,7 @@ public class StreamParser extends Thread{
 
     /**
      * Used to read in the xml data. Will call the specific methods to create the course and boats
+     *
      * @param packet Packet parsed in to use the payload
      */
     private static void extractXmlMessage(StreamPacket packet){
@@ -242,6 +260,7 @@ public class StreamParser extends Thread{
     /**
      * Extracts the race start status from the packet, currently is unused within the app but
      * is here for potential future use
+     *
      * @param packet Packet parsed in to use the payload
      */
     private static void extractRaceStartStatus(StreamPacket packet){
@@ -256,6 +275,7 @@ public class StreamParser extends Thread{
     /**
      * When a yacht event occurs this will parse the byte array to retrieve the necessary info,
      * currently unused
+     *
      * @param packet Packet parsed in to use the payload
      */
     private static void extractYachtEventCode(StreamPacket packet){
@@ -271,6 +291,7 @@ public class StreamParser extends Thread{
     /**
      * When a yacht action occurs this will parse the parse the byte array to retrieve the necessary info,
      * currently unused
+     *
      * @param packet Packet parsed in to use the payload
      */
     private static void extractYachtActionCode(StreamPacket packet){
@@ -285,6 +306,7 @@ public class StreamParser extends Thread{
 
     /**
      * Strips the message from the chatter text type packets, currently the message is unused
+     *
      * @param packet Packet parsed in to use the payload
      */
     private static void extractChatterText(StreamPacket packet){
@@ -298,33 +320,28 @@ public class StreamParser extends Thread{
     /**
      * Used to breakdown the boatlocation packets so the boat coordinates, id and groundspeed are all used
      * All the other extra data is still being read and translated however is unused.
+     *
      * @param packet Packet parsed in to use the payload
      */
     private static void extractBoatLocation(StreamPacket packet){
         byte[] payload = packet.getPayload();
-        byte deviceType = payload[15];
-        byte[] seqBytes = Arrays.copyOfRange(payload,11,15);
-        byte[] latBytes = Arrays.copyOfRange(payload,16,20);
-        byte[] lonBytes = Arrays.copyOfRange(payload,20,24);
-        byte[] boatIdBytes = Arrays.copyOfRange(payload,7,11);
-        byte[] headingBytes = Arrays.copyOfRange(payload,28,30);
-        byte[] groundSpeedBytes = Arrays.copyOfRange(payload,38,40);
 
+        int deviceType = (int)payload[15];
         long timeValid = bytesToLong(Arrays.copyOfRange(payload,1,7));
-//        int boatSeq =  ByteBuffer.wrap(seqBytes).getInt();
-        long seq = bytesToLong(seqBytes);
-        long boatId = bytesToLong(boatIdBytes);
-        long rawLat = bytesToLong(latBytes);
-        long rawLon = bytesToLong(lonBytes);
+        long seq = bytesToLong(Arrays.copyOfRange(payload,11,15));
+        long boatId = bytesToLong(Arrays.copyOfRange(payload,7,11));
+        long rawLat = bytesToLong(Arrays.copyOfRange(payload,16,20));
+        long rawLon = bytesToLong(Arrays.copyOfRange(payload,20,24));
+        //Converts the double to a usable lat/lon
         double lat = ((180d * (double)rawLat)/Math.pow(2,31));
         double lon = ((180d *(double)rawLon)/Math.pow(2,31));
-        long heading = bytesToLong(headingBytes);
-        double groundSpeed = bytesToLong(groundSpeedBytes)/1000.0;
-        short s = (short) ((groundSpeedBytes[1] & 0xFF) << 8 | (groundSpeedBytes[0] & 0xFF));
-        if ((int)deviceType == 1 || (int)deviceType == 3){
+        long heading = bytesToLong(Arrays.copyOfRange(payload,28,30));
+        double groundSpeed = bytesToLong(Arrays.copyOfRange(payload,38,40))/1000.0;
 
+        //type 1 is a racing yacht and type 3 is a mark, needed for updating positions of the mark and boat
+        if (deviceType == 1 || deviceType == 3){
             BoatPositionPacket boatPacket = new BoatPositionPacket(boatId, timeValid, lat, lon, heading, groundSpeed);
-
+            //add a new priority que to the boatPositions HashMap
             if (!boatPositions.containsKey(boatId)){
                 boatPositions.put(boatId, new PriorityBlockingQueue<BoatPositionPacket>(256, new Comparator<BoatPositionPacket>() {
                     @Override
@@ -337,8 +354,11 @@ public class StreamParser extends Thread{
         }
     }
 
-
-
+    /**
+     * This packet type is received when a mark or gate is rounded by a boat
+     *
+     * @param packet The packet containing the payload
+     */
     private static void extractMarkRounding(StreamPacket packet){
         byte[] payload = packet.getPayload();
         int messageVersionNo = payload[0];
@@ -351,6 +371,11 @@ public class StreamParser extends Thread{
         int markId = payload[20];
     }
 
+    /**
+     * This packet type contains periodic data on the state of the wind
+     *
+     * @param packet The packet containing the payload
+     */
     private static void extractCourseWind(StreamPacket packet){
         byte[] payload = packet.getPayload();
         int messageVersionNo = payload[0];
@@ -370,6 +395,11 @@ public class StreamParser extends Thread{
         }
     }
 
+    /**
+     * This packet conatins the average wind to ground speed
+     *
+     * @param packet The packet containing the paylaod
+     */
     private static void extractAvgWind(StreamPacket packet){
         byte[] payload = packet.getPayload();
         int messageVersionNo = payload[0];
@@ -448,6 +478,12 @@ public class StreamParser extends Thread{
         return boats;
     }
 
+
+    /**
+     * returns the latest updated object from xml parser
+     *
+     * @return the latest xml object
+     */
     public static XMLParser getXmlObject() {
         return xmlObject;
     }