you should ask nuttcaze or PM him he might be able to assist you. I dont know where to get these frame. i thought xheli has them, but there's no spare parts available. try to google it. it might help.
Hi, I think they don't sell that part yet. You just might install DD tail motor The tail will be more stable and the tail fin is already included in the package
ne body now the mm size of the tail boom on a falcon 40 and HBFP V1 stock mm size? cause i wanna by 4 foot long carbon tube so i can make my own tail booms