Update BUILD.md

BUILD.md

@@ -41,7 +41,7 @@ list some basic and more used commands as example.
     ./waf copter
     ```    
 
-    The "arducopter" and "arducopter-heli" binaries should appear in the `build/<board-name>/bin` directory.
+    The "arducopter" binary should appear in the `build/<board-name>/bin` directory.
 
 * **List available boards**
 
@@ -71,6 +71,20 @@ list some basic and more used commands as example.
 
     ```
 
+* **List of available vehicle types**
+
+    Here is a list of the most common vehicle build targets:
+
+    ```sh
+    ./waf copter                            # All multirotor types
+    ./waf heli                              # Helicopter types
+    ./waf plane                             # Fixed wing airplanes including VTOL
+    ./waf rover                             # Ground-based rovers and surface boats
+    ./waf sub                               # ROV and other submarines
+    ./waf antennatracker                    # Antenna trackers
+    
+    ```
+
 * **Clean the build**
 
     Commands `clean` and `distclean` can be used to clean the objects produced by