I built this jet about 4 years ago and flew it twice. It's super fun and fast. It has a wren super sport about 25 minutes on it all top-of-the-line JR radio equipment Duralite batteries. There is one little crack on the fuselage where I picked it up wrong but I reinforced the back and it stronger than it was. Or more detailed information you can call me . 818-632-6243