I've got the older style Dart, and have been flying it for four years now. I powered mine with a bushed TT 61, and it is easily the fastest single engine plane in my fleet. It's a clean airframe, and has no bad habits. I won mine on eBay, and it came with no tail feathers. I scratched some out of foam and covered them in balsa and monokote. It will knife edge with no coupling into the next county. Fun plane, and a great aerobat.