Geprc Mark4 LR8 is a frame for building larger long-range drones. The frame can hold up to 8" inch propellers. Compared to a traditional 7" long-range drone, the larger drone has better efficiency and greater load capacity. The Mark4 LR8 weighs 163 grams, which is very good for an 8" frame. The arms are cut from 6mm carbon. The arms are positioned in front of/behind the stack. The stack is thus mounted directly on the bottom plate. The frame is lower and thus has a better positioned center of gravity. The spacing of the holes to accommodate the stack and video transmitter is 30,5x30,5mm M3 or 20x20mm M2. The motors can be used with both 16mm and 19mm M3 holes. The frame is designed for use with analog video transmission. However, more experienced drone builders can get digital video transmitters into it without much difficulty.