RE: E-flite Ultimate, Hellraiser or Raptor?
I just put my Hellraiser together with a 2015, and there is quite a bit of work involved in getting a stick mount motor like the 2015 installed. The plane is basically made for an external rotor. As far as power, there should be plenty, but the weight will be higher than the external rotor because of the gearbox and the extra wood to get it mounted.