Has anyone else assembled the SU 31 ARF myne was bought from rotogoto on e-bay. kit came with no instructions & am looking for c/g specs. got this one cheap but would not buy another.

Which kit do you have?

It's a no name kit, the word CITIZEN written across the wings.

center of gravity is located 110 mm back from the leading edge of wing at fuselage.this location is recommended for initial test flying and trimming. there is a 12 mm margin forward to aft, balance the plane upside down with the tank empty ..hope this helps