I've owned the TF Contender...the wings do look very similar indeed but the config of the ailerons, elevators, rudders and surface areas along w/shapes are quite different. Also the fuse has much longer profile and moments are longer on UCD plus other differences but in ways they do look like they could be in the same family...I've flown both my own contendor and another fellas UCD (mine will be done this week) and can tell you they don't fly alike...the performance envelope on the ucando is significantly larger & more versatile.