Here is my tantrum. I built it a year ago with a motor left over from a NSP Mamba. Its a MP Jet 25/25 with a 4:1 and an APC 11x7 castle 25 ,berg 5 channel and a Kokam 1500 or TP 2100. I tossed the gear after the first flight and just land on the belly. It lands so slow it hardly skids more than a foot. My motor is a little heavy and the 1500 pack helps with the weight. I would love to repower it with something else. It was so easy to build I should get another one.