The DJI FlameWheel F450 can either be bought as an ARF kit or fully assembled ready-to-fly RTF package. Options include DJI Naza or DJI Wookong autopilot systems. The frame arms are constucted from PA66+30GF ultrastrength material, giving excellent crash-absorbing properties. The use of high strength compound PCB frame board, makes wiring of ESCs and battery safer and easier. The open frame design allows ample assembly space for autopilot systems and additional electronic components.