A rotary car dumper or wagon tippler (UK) is a mechanism used for unloading certain railroad cars such as hopper cars, gondolas or lorries (tipplers, UK).
 It holds the rail car to a section of track and rotates the track and car together to dump out the contents.
 Used with gondola cars, it is making open hopper cars obsolete.
 Because hopper cars require sloped chutes in order to direct the contents to the bottom dump doors (hatches) for unloading, gondola cars allow cars to be shorter, thus lowering their center of gravity, while carrying the same gross rail load.
The frisbee is a type of pendulum amusement ride featuring a circular gondola that rotates as it swings back and forth.
 Riders are seated on the gondola facing inward or outward depending on the model.
A swing boat, colloquially known as a "shuggy boat" in the north east of England, is a fairground ride in which pairs of riders pull ropes to swing back and forth.
 A similar ride called a pirate ship swings in a similar motion but without the rider pulling on ropes.
A pirate ship is a type of amusement ride, consisting of an open, seated gondola (usually in the style of a pirate ship) which swings back and forth, subjecting the rider to various levels of angular momentum.
 A variant where the riders must pull on ropes to swings the ride is known as a swing boat.
The Ben Sawyer Bridge is a swing bridge that connects the town of Mount Pleasant with Sullivan's Island in South Carolina.
 The bridge swings on its central axis to open for boat traffic which is too tall to clear the bridge, and has an operator's house in the center of the swing span from which an tender can operate the bridge.
 The bridge was originally constructed in 1945, but the steel superstructure for the approach spans and swing span was replaced in 2010, albeit retaining the same general appearance.
The swing ride or chair swing ride (sometimes called a swing carousel, wave swinger, yo-yo, Chair-O-Planes or swinger) is a fairground ride that is a variation on the carousel in which the chairs are suspended from the rotating top of the carousel.
 On some versions, particularly on the Wave Swingers, the rotating top of the carousel also tilts for additional variations of motion.
Pendulum rides are amusement rides based on the motion of a fixed pendulum.
 The configuration of the ride consists of a gondola, arm, and an axle.
 One end of the arm is fitted with a passenger-carrying gondola, while the other is attached to the axle.
 On some models, the arm extends beyond the axle and is fitted with a heavy counterweight.
 The counterweight is often used when the gondola swings through an inversion.
 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.
Giant Barn Swing is a Screamin' Swing style amusement ride designed by S&S Worldwide at Silver Dollar City in Branson, Missouri.
 Assembly for this ride began in January 2007, and it was opened on April 14, 2007.
 The ride was installed by Ride Entertainment Group.
The HUSS Swing Around is an amusement park ride formerly manufactured by HUSS.
 It was HUSS Maschinenfabrik's first ride model, debuted in 1969.
 It is not manufactured by the company anymore, but there are a handful of known units left around the world.
 The ride rotates in a circle, and the arms swing out, and then come in.
 They keep on doing this during the ride, in bigger and bigger increments until the very end, where they all swing out, using pneumatic pressure.
 Most parks require riders to be 42 inches tall to ride; anyone under 48 inches tall must ride with an adult.
Riptide (formerly called Cliffhanger) is a thrill ride at Canada's Wonderland manufactured by Mondial.
 The ride is similar to the parks Shockwave ride in terms of how the riders are spun.
 At the base of the ride there are a number of fountains that (only during hot days) shoot up towards the riders as they are spinning and soak them.
 When the weather is cool, the fountains shoot up but go back down before the water hit the riders.
 Over the past couple of years, the ride cycle has been cut down and riders don't get as wet as they did in the past .
 Unlike the 'Topspins' made by Huss which feature one gondola (or row), Riptide features two gondolas.

Question: What ride is simlar to a swing boat and has an open, seated gondola?
Answer: A pirate ship