DIY ARF F550 Hexacopter APM2.8 FC NEO7M GPS Brushless 920KV Motor Simonk 30A ESC. This DIY HJ-F550 Hexacopter kit is unassembled. Come with high quality electronic accessories, still need a 3S Lipo battery and a 6CH above radio system to complete. This F550 hexacopter is a very popular machine, it has a strong rack, beautiful […]