Get a 46fx, tt46, or just about any thing but the la, while some people have had good luck with them you will find many more that have had nothing but trouble with them, I had a 40 that ran fine for about 10 flights then it started loosing power in the air until it would die & I would have to land dead stick. I have a 2yr. old 46la on my son's trainer, it has about 30 flights on it with no trouble so far but I think trouble is right around the bend. In the future I will stay away from the la series engines.

Gil