Airstream Park Model : Move like a stream of air! In 1931, Airstream began with Wally Byam's dream: to build a travel trailer that would move like a stream of air, be light enough to be towed by a car and create first-class accommodations anywhere. Every inch of an Airstream has a function. Airstream is the most thoroughly tested brand in trailer history. Its engineering is the culmination of over 80 years of experience plus millions of miles on roads throughout the world. With Airstream, there is no planned obsolescence. Airstreams of the thirties are still on the road today, sturdy and modern as ever. They are intended as a lifetime investment in happiness.