A good and fast building kit but not exactly a 3D machine is a sig something extra. I am building one for my dad and doing some rudder and elevator mods to make this thing do pretty much anything we can imagine. I had one of these with a .46 on it and proped right (12.25 X 3.75") I had very good vert. and it would hover real well and still be able to pull out.

The mods we are doing = Counter balancing rudder and elevator.

Enjoy.

p.s. this kit is also reasonably priced.