RE: 46-50 size electric set-up, post here
I have a Venus 40 and a Groovy 50 with Plettenberg Orbit 25-16, 5S LiPo 4000 mAh and 14x9 Aeronaut prop. My batteries are 2 years old. With new battery you shall have 13x9 or 14x7 to get same power. I does have 930 W and the motor is cold after a flight. It is possible to increase the power if you like.
Plettenberg Orbit 25-16 is an expensive motor but is a inexpensive compare to other Plettenberg motors. Orbit 25-16 have a good power to weight ratio.