The Ali Baba, Looping Starship, and Pirate Ship are some examples.
One end of the arm is fitted with a passenger-carrying gondola, while the other is attached to the axle.
In some models, the arm extends beyond the axle and is fitted with a heavy counterweight.
In addition to swinging back and forth, some designs incorporate rotating gondolas and may send riders through a complete inversion.
Pendulum rides are propelled by one of two methods: a series of DC motors driving the axle or wheels at the base of the station pushing the gondola as it swings by.