This plane flies great.
5Sjust doesn't quiet do it with the hacker, even with th 17" prop
The 5S 4900 pack was actualy to light, only just balanced the plane.
So 6S 4000, should be great......i'll let you know
tonye ... how does the plane fly? I got the 30 sized one ready, been so many weeks now and I have been either too busy or too lazy to maiden her. Guess if you want to 3D the 50 sized SU, you will need a 6S set up.
tph ... its called 'back mounted'. That means the rotating can is facing the front with prop adapter attached to it.