Foxeer Aura Split 13" is a great frame for long-range flying. The frame has a diagonal motor spacing of 551mm and can hold up to 13" propellers. The frame is made for stacks with 30.5x30.5mm hole spacing. There is plenty of room for video transmitters in the rear. For easy mounting, there are mounting holes with 20x20mm,25.5x25.5mm and 30.5x30.5mm spacing. The frame can accommodate both micro and mini(19-22mm) cameras. Frames are milled from 8mm thick carbon. The top and bottom plates are made of 3mm thick carbon.