I have 2 raptor 50 for sale been sat in my spare room for years 1 did fly 2 years ago, the other has the receiver and gyro removed but included in sale as I was using in an electric helicopter. theses  Raptors will prob need setting up as I have said not used for years and cant guarantee the will fly perfectly. the spectrum transmitter does have a line on screen don't know why but it seems to work as it should. This is collection only as heavy items and no guarantee but all seems ok.