My trainer has a 46la and I fly from grass. It is a Balsa USA Stick 40 and it flys it great. I put a set of home built skis on it and flew it off the snow about 6 inches of powder and it did fine. The LA runs good and is on it 8th gal of fuel but my father-in-law has a 46FX that runs so much better. It starts better,idles lower and makes a lot more power for just a little more money. I am keeping my trainer as long as it will last. I am thinking about putting floats on it next for snow and water.