The Smiler — Alton Towers' 14‑inversion Gerstlauer Infinity Coaster

Characteristics and technical overview

The Smiler's design emphasizes rapid changes of orientation and a compact footprint. Key specifications commonly cited include: a total of 14 inversions, a top speed of about 53 mph (85 km/h), and peak forces in the region of 4.5 g — roughly comparable to forces experienced by drag car drivers, according to published comparisons on G-force measurement. Trains are formed of multiple individual cars; each train typically carries 16 riders (4 cars per train, 4 riders per car) and the ride operates with several trains to achieve hourly throughput in the range of about 1,000 riders under normal conditions.

Elements and rider experience

The track layout combines tight inversions, rolls and twisted elements in quick succession so that riders encounter multiple inversion types within a short distance. Common element descriptions include corkscrews, rolls and a batwing-style double inversion, together with dramatic banking and sudden drops. The Smiler's theming and track choreography are intended to produce a disorienting, high-intensity experience rather than a single sustained drop.

History, opening and operational timeline

Construction and testing of The Smiler culminated in a public opening on 31 May 2013 after some initial delays and testing adjustments. The project was notable for its ambitious inversion count and for the engineering challenges of packing many elements into the available site. The ride experienced an operational incident in June 2015 when a moving train collided with a stationary test train, causing serious injuries to several people. The collision triggered an extensive investigation, safety reviews and operational changes. After modifications and additional checks, the attraction reopened to the public in March 2016.

Safety, regulation and later operation

The Smiler, like other major roller coasters in the region, is subject to national safety regulations, routine inspections and daily operational checks. Following the 2015 accident, operators and regulators required remedial work, review of procedures and additional safeguards before permitting the ride to resume. Since reopening, the coaster has continued to operate under standard park safety practices; visitors should still observe posted height and health restrictions, including a minimum rider height of approximately 140 cm (55 in).

Notable facts and legacy

• The Smiler holds the record for the most inversions on a single roller coaster layout and is often cited in discussions of extreme coaster design.
• Its compact, highly twisted layout has influenced coaster design debates about intensity, capacity and theming.
• Its operational history is frequently referenced in case studies of risk management, engineering response and post-incident regulation in the amusement industry.

For visitors planning a ride, it is advisable to check current operating status, queueing systems and any temporary restrictions at the park before travelling. Further information on the attraction, including official updates, can be found via the park's pages and related technical references using the links above and additional resources about the opening.