The F22 is a fun plane but it has 2 major shortcomings. The first is ground clearance, the other is that the gear is realy too stiff to take off and land in grass. I think it was meant to be flown off pavement. I would look into something with a lot of wing area. Extended fly times require larger fuel cells. You get comfortable with it in time, you can get something larger and go to gas. Gas engines are more economical. Longer fly times on less fuel.