Mark4 10" V2 is a carbon frame suitable for building large 10" long-range drones. The frame has a diagonal motor spacing of 473mm and massive arms made of 7.5mm thick carbon, which are interconnected for added frame rigidity. The frame is designed for Micro(19mm) size cameras. The camera is mounted in carbon sidewalls to protect it. The frame can accommodate stacks with mounting holes 30,5x30,5mm and 20x20mm. The rear of the frame then has space to locate a video transmitter. For the video transmitter there are mounting holes with spacing 30,5x30,5mm and 20x20mm. 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.