diff --git a/Quadcopter.h b/Quadcopter.h
index 5d62f78..1d307b4 100644
--- a/Quadcopter.h
+++ b/Quadcopter.h
@@ -4,20 +4,23 @@
 #include "Vector3.h"
 
 class Quadcopter : public Thing {
-public:
-	Quadcopter();
+ public:
+  Quadcopter();
 
-	void LinearMotion(Vector3 velocity, float yawSpeed = 0.0F, float rollSpeed = 0.0);
-	void SetTwistSpeed(float forward, float yaw, float pitch);
-    void SetTwistSpeed(Vector3 velocity, float yawSpeed = 0.0F);
+  void LinearMotion(Vector3 velocity,
+                    float yawSpeed = 0.0F,
+                    float rollSpeed = 0.0);
+  void SetTwistSpeed(float forward, float yaw, float pitch);
+  virtual void SetTwistSpeed(Vector3 velocity, float yawSpeed = 0.0F);
 
-	Vector3 GetTargetVelocity();
-	float GetYawSpeed();
-	float GetPitchSpeed();
-	float GetRollSpeed();
-protected:
-	Vector3 velocity = Vector3::zero;
-	float pitchSpeed = 0.0F;
-	float yawSpeed = 0.0F;
-	float rollSpeed = 0.0F;
+  Vector3 GetTargetVelocity();
+  float GetYawSpeed();
+  float GetPitchSpeed();
+  float GetRollSpeed();
+
+ protected:
+  Vector3 velocity = Vector3::zero;
+  float pitchSpeed = 0.0F;
+  float yawSpeed = 0.0F;
+  float rollSpeed = 0.0F;
 };
\ No newline at end of file