I flew my XT today. It has a power 46 motor. Using a 2 4s1p A123 packs and a 14x 8 prop. It flys good but I am only using about 400 watts due to the low voltage of the A123 packs. Five cells would be nice but there is no room. With a all up weight of six lbs that is about 50-60 watts per lb. It is a very nice airplane to fly. Maybe next year if I am rich I will buy a six cell lipo for it. I think I could get more weatts from a power 32 since it set up for 3-4 cell packs and has a higher rpm/volt.

Bob