diff --git a/libraries/AP_Math/matrix3.h b/libraries/AP_Math/matrix3.h
index 4e3c7cf88f..902575bfd1 100644
--- a/libraries/AP_Math/matrix3.h
+++ b/libraries/AP_Math/matrix3.h
@@ -122,41 +122,10 @@ public:
 
 };
 
-#define MATRIX3_CTORS(name, type)									\
-	/* trivial ctor */												\
-	name() {}														\
-	/* down casting ctor */											\
-	name(const Matrix3<type> &m): Matrix3<type>(m.a, m.b, m.c) {}	\	
-	/* make a,b,c combination into a matrix */						\
-	name(const Vector3<type> &a0, const Vector3<type> &b0, const Vector3<type> &c0) : Matrix3<type>(a0, b0, c0) {}
-
-class Matrix3i : public Matrix3<int>
-{
-public:
-	MATRIX3_CTORS(Matrix3i, int)
-};
-
-class Matrix3ui : public Matrix3<unsigned int>
-{
-public:
-	MATRIX3_CTORS(Matrix3ui, unsigned int)
-};
-
-class Matrix3l : public Matrix3<long>
-{
-public:
-	MATRIX3_CTORS(Matrix3l, long)
-};
-class Matrix3ul : public Matrix3<unsigned long>
-{
-public:
-	MATRIX3_CTORS(Matrix3ul, unsigned long)
-};
-
-class Matrix3f : public Matrix3<float>
-{
-public:
-	MATRIX3_CTORS(Matrix3f, float)
-};
+typedef Matrix3<int>			Matrix3i;
+typedef Matrix3<unsigned int>	Matrix3ui;
+typedef Matrix3<long>			Matrix3l;
+typedef Matrix3<unsigned long>	Matrix3ul;
+typedef Matrix3<float>			Matrix3f;
 
 #endif // MATRIX3_H
diff --git a/libraries/AP_Math/vector2.h b/libraries/AP_Math/vector2.h
index f3a2a87234..bbe380aeb6 100644
--- a/libraries/AP_Math/vector2.h
+++ b/libraries/AP_Math/vector2.h
@@ -149,45 +149,10 @@ struct Vector2
 
 };
 
-
-// macro to make creating the ctors for derived vectors easier
-#define VECTOR2_CTORS(name, type)   \
-	/* trivial ctor */				\
-	name() {}						\
-	/* down casting ctor */			\
-	name(const Vector2<type> &v): Vector2<type>(v.x, v.y) {}	\
-	/* make x,y combination into a vector */					\
-	name(type x0, type y0): Vector2<type>(x0, y0) {}
-
-
-
-struct Vector2i: public Vector2<int>
-{
-	VECTOR2_CTORS(Vector2i, int)
-};
-
-
-struct Vector2ui: public Vector2<unsigned int>
-{
-	VECTOR2_CTORS(Vector2ui, unsigned int)
-};
-
-
-struct Vector2l: public Vector2<long>
-{
-	VECTOR2_CTORS(Vector2l, long)
-};
-
-
-struct Vector2ul: public Vector2<unsigned long>
-{
-	VECTOR2_CTORS(Vector2ul, unsigned long)
-};
-
-
-struct Vector2f: public Vector2<float>
-{
-	VECTOR2_CTORS(Vector2f, float)
-};
+typedef Vector2<int>			Vector2i;
+typedef Vector2<unsigned int>	Vector2ui;
+typedef Vector2<long>			Vector2l;
+typedef Vector2<unsigned long>	Vector2ul;
+typedef Vector2<float>			Vector2f;
 
 #endif // VECTOR2_H
diff --git a/libraries/AP_Math/vector3.h b/libraries/AP_Math/vector3.h
index ae141dd5da..7c23a5fc63 100644
--- a/libraries/AP_Math/vector3.h
+++ b/libraries/AP_Math/vector3.h
@@ -174,50 +174,10 @@ public:
 
 };
 
-// macro to make creating the ctors for derived vectors easier
-#define VECTOR3_CTORS(name, type)   \
-	/* trivial ctor */				\
-	name() {}						\
-	/* down casting ctor */			\
-	name(const Vector3<type> &v): Vector3<type>(v.x, v.y, v.z) {}	\
-	/* make x,y,z combination into a vector */						\
-	name(type x0, type y0, type z0): Vector3<type>(x0, y0, z0) {}
-
-
-
-
-class Vector3i: public Vector3<int>
-{
-public:
-	VECTOR3_CTORS(Vector3i, int)
-};
-
-
-class Vector3ui: public Vector3<unsigned int>
-{
-public:
-	VECTOR3_CTORS(Vector3ui, unsigned int)
-};
-
-
-class Vector3l: public Vector3<long>
-{
-public:
-	VECTOR3_CTORS(Vector3l, long)
-};
-
-
-class Vector3ul: public Vector3<unsigned long>
-{
-public:
-	VECTOR3_CTORS(Vector3ul, unsigned long)
-};
-
-
-class Vector3f: public Vector3<float>
-{
-public:
-	VECTOR3_CTORS(Vector3f, float)
-};
+typedef Vector3<int>			Vector3i;
+typedef Vector3<unsigned int>	Vector3ui;
+typedef Vector3<long>			Vector3l;
+typedef Vector3<unsigned long>	Vector3ul;
+typedef Vector3<float>			Vector3f;
 
 #endif // VECTOR3_H