The company modified a Boeing 727-200's hydraulics system and interior: 35 seats and 80 feet of padded floor, a padded ceiling, padded walls, a lighting system, a sound system and cameras. "It's basically a Zero-G playroom." After the quick, seatbelted jaunt from McCarran to 22,000 feet, people lie down on the ground ... and the pilot does 10 zero-gravity parabolas. "You're weightless, literally floating through the air ... "