Minimums," says Bob Owsley. The view isn't encouraging. We can see the ground, or more accurately the water, but that's about it. There is no sparkle to the gray surface of Lake Winnebago; it is a mirror of the dark clouds just 100 feet over our heads. Still, this is the most spectacular way to see Oshkosh. You see, I am in the jumpseat of Southwest Airlines' newest 737-700. It is barely a month old and, since this is a Part 91 flight, I can sit just behind Capt. Rob Amsler, the airline's chief pilot in Orlando, Florida.