i got mine set up 4.5 with 2 dymonds and 1 s60 with all covers taken off the recievers and speed contralers and batteries and i also set up pull pull with 6 lb fishing line i was using a 250 with a thunderbird 6 speed controller. i also did not put on the drag devices but with drag device it was still under 5 but i was also using flight power 350 2 cell to make it light. So ready To fly the plane weighed 4.5 without drag devices