When I was on troopship in South Pacific, flying fish frequently landed on the deck near the bow, which meant they had to be more than fifteen feet above sea level. This was not much wind, although the waves might have been three or four feet high. They were only about the size of my thumb, and I was wearing a helmet liner, so I did not worry about impact. I have heard they are good to eat, but the only way I could have cooked them would have been by using my glasses as a magnifying glass. No thanks.