Ключевые слова: activity, aero, aerobatic, aerodynamic, air, air tube, alone, astronaut, attraction, blue, body, coach, dynamic, exercise, extreme, flight, flow, fly, flyspot, fun, glass, gravity, helmet, hobby, hover, indoor, inside, instructor, join, leisure, lesson, levitation, man, motion, movement, one, overalls, protective, simulator, skydiving, sport, stream, suit, trainer, transparent, tube, tunnel, uniform, vertical, wind,