Tommygun, I'm actually using two 3152s and two 3151s in my UFO. The faster 51s for ailerons and the higher torque 52s on rudder and elevator. I'm using a 5 cell, 6v 1400mah NiCad pack I got from Radical RC. It has high quality Sanyo KR 1400AE cells. It's a good pack for four or more digitals.

David