This plate can be used as a battery tray or battery protection. It is also a GoPro mount and a utility plate that can add room to mount equipment for guys who wish to install FPV equipment. This video shows you how to install this plate. Note that the video does not show installation of this plate on V-Tails and Tricopters, however, this plate is also compatible with these models. It is compatible with every model made by Armattan.