This plane has several design features that are lacking in other EPP models. 1) wings lock securely into place. 2) interior mounting formers are removable and modifiable. 3) provision is made for camera looking down and camera mounted on top. 4) tail plane is removable The plane flies well under Pixhawk control, lands easily without the need for airspeed sensor. Mine balanced with a 4.5 Ahr battery located under the lower former.