Bumper cars

Power is commonly supplied by one of three methods:

• The oldest and most common method, called Over Head System (OHS), uses a conductive floor and ceiling, each with a separate power polarity. Contacts under the vehicle touch the floor while a pole-mounted contact shoe touches the ceiling, forming a complete circuit.
• A newer method, the Floor Pick-Up (FPU) system, uses alternating strips of metal across the floor separated by insulating spacers, and no ceiling grid.[1] The alternating strips carry the supply current, and the cars are large enough so that the vehicle body can always cover at least two strips at any one time. An array of brushes under each car make random contact with whatever strip is below, and the voltage polarity on each contact is sorted out to always provide a correct and complete circuit to operate the vehicle.
• The bumper cars on the Quantum-class cruise ships run on electric batteries. This avoids the conductive floor/ceiling of the traditional bumper cars setup, as the SeaPlex venue is to be readily convertible from a bumper cars ride to a multipurpose gym (basketball court). The disadvantage is that these ships' bumper cars take several hours to recharge their batteries.

The metal floor is usually set up as a rectangular or oval track, and graphite is sprinkled on the floor to decrease friction.[2] A rubber bumper surrounds each vehicle, and drivers either ram or dodge each other as they travel. The controls are usually an accelerator and a steering wheel. The cars can be made to go backwards by turning the steering wheel far enough in either direction, necessary in the frequent pile-ups that occur.

Although the idea of the ride is to bump other cars, safety-conscious (or at least litigation-conscious) owners sometimes put up signs reading "This way around" and "No (head on) bumping."[3][4] Depending on the level of enforcement by operators, these rules are often ignored by bumper car riders, especially younger children and teenagers.[5]

During their heyday, from the late 1920s to 1950s, two major US bumper cars brands were Dodgem by Max and Harold Stoehrer and the Lusse Brothers' Auto-Skooter by Joseph and Robert 'Ray' Lusse.[6][7] Lusse Brothers built the first fiberglass body in 1959, in part due to the survival of Chevrolet Corvette bodies over the previous six years. After getting permission from Chevrolet, then subsequently buying the actual Corvette chevrons from local Philadelphia dealers, those were attached to the nose of their product for 1959. In the mid-1960s, Disneyland introduced hovercraft-based bumper cars called Flying Saucers, which worked on the same principle as an air hockey game; however, the ride was a mechanical failure and closed after a few years.

The current largest operating bumper car floor in the United States is located at Six Flags Great America in Gurnee, Illinois, and is called the Rue Le Dodge (Rue Le Morgue during Fright Fest in the fall). The ride is 51 feet 9 inches (15.77 m) by 124 feet 9 inches (38.02 m) or a total of 6,455 square feet (599.7 m²). A replica of the ride was built at California's Great America in Santa Clara; in 2005, however, a concrete island was added to the middle of the floor to promote one-way traffic, reducing the floor area. Six Flags Great Adventure's Autobahn is the largest bumper car floor, but it has not operated since 2008.

• Bumper boats
• Collector pole
• Electric vehicle
• Go-kart
• Witching Waves

• Bumping Down Memory Lane: The Lusse Legacy

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