I flew a friend's WM 80" Zero that weighed 17lbs with an OS 1.60 and it hauled that plane around with very good authority. The Moki 1.8 would actually be a very good match for the GP Eagle. Somewhere in the midst of the current 3D craze we've forgotten that airplanes can actually fly quite well on their wings! Also since you'll be at an all-in weight at least 2 lbs less than the planes equipped with heavy gas engines like the G62 or Fuji52, you'll need less power in order to get good performance.