Ya the do touch and gos all the time....its not so loud here but in the town of tye which is right at the runway i think it would suck. I had a friend whos house was like half a mile from the runway and the house shooke things were makin all kinds of noises it sounded like something really big blowing up but i dont see me having a problem of hitting them i was just wondering if it would be ok or is there any law or somthing about it.....if i do do this should i have a pretty smooth surface or would a few bumbs be ok....mostly some weed stump things bout 1 inch high?.....thanks steven