Learn how to chock the wheels on an Airstream travel trailer.
To properly chock your tires, you want to put one chock behind the rear tire and the other chock at the front of the front tire.
Put the chock on both sides of the single tire.
Note: Be sure to use a wheel chock and never use the breakaway switch as a method to keep the travel trailer from moving while being parked. This approach will deplete your batteries and potentially harm the magnets on the brakes.