diff --git a/avanceret/hovercraft/controller/main.py b/avanceret/hovercraft/controller/main.py
index 2fd5106..a4ce1e1 100644
--- a/avanceret/hovercraft/controller/main.py
+++ b/avanceret/hovercraft/controller/main.py
@@ -11,11 +11,18 @@ import radio
 radio.config(group=99, power=7)
 radio.on()
 
+throttle = 0
+flying = False
+
 def move_forward():
-    pass
+    throttle += 50
+    if throttle > 100:
+        throttle = 100
 
 def move_back():
-    pass
+    throttle -= 50
+    if throttle < 0:
+        throttle = 0
 
 def turn_right():
     pass
@@ -23,13 +30,29 @@ def turn_right():
 def turn_left():
     pass
 
+def take_of():
+    #switch hover motor on
+    flying = True
+    pass
+
+def land():
+    #switch hover motor off
+    flying = False
+    pass
+
 while True:
-    command = radio.receive()
-    if command == "forward":
-        move_forward()
-    elif command == "back":
-        move_back()
-    elif command == "right":
-        turn_right()
-    elif command == "left":
-        turn_left()
+    Arm = radio.receiveValue("A")
+    if flying == True:
+        if command == "forward":
+            move_forward()
+        elif command == "back":
+            move_back()
+        elif command == "right":
+            turn_right()
+        elif command == "left":
+            turn_left()
+        elif command == "land":
+            land()
+    else:
+        if command == ("take_of"):
+            take_of()
diff --git a/avanceret/hovercraft/remote/main.py b/avanceret/hovercraft/remote/main.py
index ef6b278..d0303ba 100644
--- a/avanceret/hovercraft/remote/main.py
+++ b/avanceret/hovercraft/remote/main.py
@@ -11,12 +11,29 @@ import radio
 radio.config(group=99, power=7)
 radio.on()
 
+flying = False
+
+def take_of():
+    flying = True
+    radio.sendValue("takeof", flying)
+
+def land():
+    flying = False
+    radio.sendValue("land", flying)
+
 while True:
-    if accelerometer.was_gesture("down"):
-        radio.send("forward")
-    if accelerometer.was_gesture("up"):
-        radio.send("back")
-    if accelerometer.was_gesture("left"):
-        radio.send("left")
-    if accelerometer.was_gesture("right"):
-        radio,send("right")
\ No newline at end of file
+    if flying == True:
+        if accelerometer.was_gesture("down"):
+            radio.send("forward")
+        if accelerometer.was_gesture("up"):
+            radio.send("back")
+        if accelerometer.was_gesture("left"):
+            radio.send("left")
+        if accelerometer.was_gesture("right"):
+            radio.send("right")
+    if button_a.was_pressed():
+        if flying != True:
+            take_of()
+    if button_b.was_pressed():
+        if flying != False:
+            land()
\ No newline at end of file