diff --git a/racevisionGame/src/main/java/network/BinaryMessageEncoder.java b/racevisionGame/src/main/java/network/BinaryMessageEncoder.java
index f7dc12a7..ced31af1 100644
--- a/racevisionGame/src/main/java/network/BinaryMessageEncoder.java
+++ b/racevisionGame/src/main/java/network/BinaryMessageEncoder.java
@@ -94,6 +94,15 @@ public class BinaryMessageEncoder {
         this.fullMessage = tempFullMessageByteBuffer.array();
     }
 
+    /**
+     * Construct a binary message from message type and message body.
+     * @param headerMessageType of message
+     * @param messageBody of message
+     */
+    public BinaryMessageEncoder(MessageType headerMessageType, byte[] messageBody) {
+        this(headerMessageType, System.currentTimeMillis(), 69, (short)messageBody.length, messageBody);
+    }
+
     /**
      * Returns the full encoded message. This includes the header, body, and CRC.
      * @return Full encoded message.
diff --git a/racevisionGame/src/main/java/network/Messages/Enums/MessageType.java b/racevisionGame/src/main/java/network/Messages/Enums/MessageType.java
index 6b8fd775..086673f5 100644
--- a/racevisionGame/src/main/java/network/Messages/Enums/MessageType.java
+++ b/racevisionGame/src/main/java/network/Messages/Enums/MessageType.java
@@ -19,6 +19,7 @@ public enum MessageType {
     MARKROUNDING(38),
     COURSEWIND(44),
     AVGWIND(47),
+    BOATACTION(100),
     NOTAMESSAGE(0);
 
     ///Primitive value of the enum.
diff --git a/racevisionGame/src/main/java/visualiser/gameController/ControllerClient.java b/racevisionGame/src/main/java/visualiser/gameController/ControllerClient.java
index d3e9fea8..0981f570 100644
--- a/racevisionGame/src/main/java/visualiser/gameController/ControllerClient.java
+++ b/racevisionGame/src/main/java/visualiser/gameController/ControllerClient.java
@@ -1,10 +1,13 @@
 package visualiser.gameController;
 
+import network.BinaryMessageEncoder;
+import network.Messages.Enums.MessageType;
 import visualiser.gameController.Keys.ControlKey;
 
 import java.io.DataOutputStream;
 import java.io.IOException;
 import java.net.Socket;
+import java.net.SocketException;
 import java.nio.ByteBuffer;
 
 /**
@@ -27,6 +30,7 @@ public class ControllerClient  {
      */
     public ControllerClient(Socket socket) {
         this.socket = socket;
+
         try {
             this.outputStream = new DataOutputStream(socket.getOutputStream());
         } catch (IOException e) {
@@ -40,7 +44,14 @@ public class ControllerClient  {
      * @throws IOException if socket write fails
      */
     public void sendKey(ControlKey key) throws IOException {
-        // TODO - get and send action number currently corresponding to key (context dependent)
-        System.out.println(key.toString() + ": " + key.getProtocolCode());
+        int protocolCode = key.getProtocolCode();
+        if(protocolCode > -1) {
+            ByteBuffer buffer = ByteBuffer.allocate(4);
+            buffer.putInt(protocolCode);
+            byte[] message = new byte[]{buffer.get(3)};
+            BinaryMessageEncoder binaryMessage = new BinaryMessageEncoder(MessageType.BOATACTION, message);
+            //outputStream.write(binaryMessage.getFullMessage());
+            System.out.println("Binary message constructed");
+        }
     }
 }
diff --git a/racevisionGame/src/main/java/visualiser/gameController/ControllerServer.java b/racevisionGame/src/main/java/visualiser/gameController/ControllerServer.java
index 012d3087..2e391d2a 100644
--- a/racevisionGame/src/main/java/visualiser/gameController/ControllerServer.java
+++ b/racevisionGame/src/main/java/visualiser/gameController/ControllerServer.java
@@ -39,7 +39,7 @@ public class ControllerServer implements Runnable {
     @Override
     public void run() {
         while(true) {
-            byte[] key = new byte[1];
+            byte[] key = new byte[16];
             try {
                 inputStream.read(key);
                 // TODO - handle messages received
diff --git a/racevisionGame/src/main/java/visualiser/gameController/Keys/SailsToggleKey.java b/racevisionGame/src/main/java/visualiser/gameController/Keys/SailsToggleKey.java
index d29d3a8f..bc9b81a6 100644
--- a/racevisionGame/src/main/java/visualiser/gameController/Keys/SailsToggleKey.java
+++ b/racevisionGame/src/main/java/visualiser/gameController/Keys/SailsToggleKey.java
@@ -19,7 +19,7 @@ public class SailsToggleKey extends ControlKey {
      */
     @Override
     public void onAction() {
-        protocolCode = protocolCode == 2? 1 : 2;
+        protocolCode = protocolCode == 2? 3 : 2;
     }
 
     @Override