Airstream is an American brand of travel trailers ("caravans" in British English) which are easily recognized by the distinctive shape of their rounded and polished aluminum coachwork. This body shape dates back to the 1930s and is based on designs created by Hawley Bowlus, who had earlier overseen construction of Charles Lindbergh's aircraft, the Spirit of St. Louis. Airstream trailers and recreational vehicles are manufactured in Jackson Center, Ohio, USA. The company, now a division of Thor Industries, employs more than 800 people, and is the oldest in the industry.