HJ550 is a series of "Firewheel" Multicopter frame from HJ. It is very suitable for RC beginner althougn HJ550 have simple design, seldom parts but strong structure to let user more easier for maintenance. The mounting holes design can fit for different controller board e.g. KK, FF, MK, MWC in the RC market, it can fulfill different kind of user need e.g. FPV.
Please note that the thickness of the 6 motor arms are 5mm, the original M3 motor screw maynot be long enough for mount the motor. Recommanded motor screw: M3x8mm (not included)
Motor: A2212/2216/2814 800KV~1000KV
ESC: 20A ~ 30A
Propeller Size: 10x4.5 in or 10x4.7 in
Battery: 4s 2000mah ~ 3600mah Lipo