You will sweat profusely. You will regret never having made a will. And you might very well barf. But once you're back on the ground, you'll hanker to get up in the air again. To actually fly a small plane bears no relation to the experience of sitting on a commercial airliner. You finally begin to fathom: I'm doing something I am genetically not supposed to be doing, and it feels incredible. Eusebio Valdes, the one-man show who owns and operates Miami Fly, has been taking jittery amateurs into the clouds for more than 27 years. An hourlong class costs a reasonable $140, including all expenses, and it takes about 40 hours to become certified as a pilot. His Cessnas are low-tech and sort of resemble '70s-era Buicks on the inside, but they're completely safe — he's never had an accident. The Kojak-domed Spanish native is a watchful and careful copilot who's full of Mr. Miyagi-esque nuggets of wisdom. Our favorite: "There are no dangerous planes, only dangerous pilots."