The Sig LT-40 kit or ARF is comparable in size to some 60 size airplanes and your TT 46 will fly it well. Your TT 46 would also work in most 60 size trainers. Although performance would be limited... learning to fly on the wing is not such a bad thing. Most flyers learn to fly on the prop by grossly overpowering...which can be fun and also have benefits, but flying on the wing can also teach you to be smoother on the sticks and better teach you the pysics of flight. You can send a concrete block in the air if you have enough power and enough prop(which could be fun), but perhaps you are wanting to fly with some style and grace ?