Rotorama Samurai V3 4 "is a very durable and light (36g) frame designed for 4" (and smaller) propellers and motors with mounting holes with a spacing of 12mm M2. The frame uses the same bottom plate and sides as the Samurai V3 Light. The frame has arms divided in pairs milled from 4mm thick carbon. Each pair of arms is held in place by two M3 screws and locks on the sides, so that the arms do not wobble and hold firmly in place even after countless falls. Samurai is designed for stacks with mounting holes 20x20mm, but there is enough space in it for even the largest of them. AIO boards such as the HGLRC Zeus35 AIO can also be used. In this case, the Caddx Vista unit for digital video transmission also fits over the board. The side panels have small teeth in the front part, which you can also find on other Rotorama frames. These serve as reference points for setting the camera angle, which you can always set in the same way.