I got a friend with one of these hanger 9 edge 540. He used dual elevator servos with carbon fibre pushrods. It also has an OS160FX engine. It will hover with a carbon fibre 18x8 prop and pull out to vertical very easily. The altitude here is 6200ft. so I would say the os 160 has plenty of power for this plane. Just my 2cents. Good luck with yours